进口PEG修饰剂，每周下单，保证货期，正常运输2～4周到货。 (RO)3Si-PEG-Si(OR)3 (mPEG)2-ALD (MPEG)2Lys-NS (mPEG)2-PEG-Acetaldehyde (mPEG)2-PEG-ALD (mPEG)2-PEG-Amine (mPEG)2-PEG-Carbonate-NHS (mPEG)2-PEG-Carbonate-p-Nitrophenol (mPEG)2-PEG-glutaryl-NHS (mPEG)2-PEG-MAL (mPEG)2-PEG-Maleimide (mPEG)2-PEG-NH2 (mPEG)2-PEG-NHS (mPEG)2-PEG-N-hydroxysuccinimide (mPEG)2-PEG-Nitrophenyl Carbonate (mPEG)2-PEG-NPC (mPEG)2-PEG-SG (mPEG)2-PEG-Succinimidyl glutarate (mPEG)2-PEG-TS (MPEG)2赖氨酸-NS (N-Succinimidyloxycarbonyl)pentyl-PEG-(N-Succinimidyloxycarbonyl)pentyl (RO)3Si-PEG-Si(OR)3 3-arm-PEG-COOH 3-Arm-PEG-Mal 3-Arm-PEG-NH2 3-Arm-PEG-NHS 4-Arm-mPEG 4-Arm-PEG-5-(N-Succinimidyloxycarbonyl)pentyl 4-Arm-PEG-Ac 4-Arm-PEG-Acid 4-arm-PEG-ACRL 4arm-PEG-ACRL-10K 4arm-PEG-ACRL-20K 4-arm-PEG-Acrylate 4-Arm-PEG-Amine 4-Arm-PEG-Azide 4-Arm-PEG-Carboxyl 4-arm-PEG-CM 4arm-PEG-CM-10K 4-Arm-PEG-COOH 4-Arm-PEG-DSPE 4-Arm-PEG-EP 4arm-PEG-EPOX-10K 4arm-PEG-EPOX-20K 4-Arm-PEG-Epoxide 4-arm-PEG-Hydroxy 4-Arm-PEG-Mal 4arm-PEG-MAL-10K 4arm-PEG-MAL-20K 4-Arm-PEG-Maleimide 4-Arm-PEG-N3 4-Arm-PEG-NH2 4arm-PEG-NH2-10K 4arm-PEG-NH2-20K 4-Arm-PEG-NH2-SC 4-Arm-PEG-NH2-SS 4-Arm-PEG-NHS 4-Arm-PEG-N-hydroxysuccinimide 4-Arm-PEG-Nitrophenyl Carbonate 4-Arm-PEG-NPC 4-Arm-PEG-OH 4-Arm-PEG-SCM 4arm-PEG-SCM-10K 4-Arm-PEG-SG 4-Arm-PEG-SH 4arm-PEG-SH-10K 4-Arm-PEG-SH-SG 4-Arm-PEG-SH-SS 4-Arm-PEG-SS 4-Arm-PEG-Succinimidyl Carboxymethyl 4-Arm-PEG-Succinimidyl glutarate 4-Arm-PEG-Sulphydryl 4-arm-PEG-Thiol 4-Arm-PEG-Thiol （Sulphydryl） 4臂聚乙二醇-N-羟基琥珀酰亚胺酯 4臂聚乙二醇氨基 4臂聚乙二醇胺基 4臂聚乙二醇丙烯酸 4臂聚乙二醇丙烯酸酯 4臂聚乙二醇叠氮 4臂聚乙二醇二硬脂酰甘油磷脂乙醇胺 4臂聚乙二醇琥珀酰亚胺 4臂聚乙二醇琥珀酰亚胺戊二酸酯 4臂聚乙二醇环氧丙烷 4臂聚乙二醇硫醇 4臂聚乙二醇马来酰亚胺 4臂聚乙二醇羟基 4臂聚乙二醇巯基 (硫醇) 4臂聚乙二醇羧基 4臂聚乙二醇硝苯基碳酸盐 689580 689696 6-aminohexyl-PEG-6-aminohexyl 6-Arm-PEG-Ac 6-Arm-PEG-EP 6-Arm-PEG-NCO 6-Arm-PEG-NH2 6-Arm-PEG-NHS 6-Arm-PEG-OH 6-Arm-PEG-SG 6-Arm-PEG-SH 6-Arm-PEG-SS 6-氨基己基聚乙二醇6-氨基己基 8-Arm-PEG-Amine 8-Arm-PEG-Carboxyl 8-Arm-PEG-CM 8-Arm-PEG-COOH 8-arm-PEG-Hydroxy 8-Arm-PEG-NH2 8-Arm-PEG-NHS 8-Arm-PEG-N-hydroxysuccinimide 8-Arm-PEG-Nitrophenyl Carbonate 8-Arm-PEG-NPC 8-Arm-PEG-OH 8-Arm-PEG-SG 8-Arm-PEG-Succinimidyl glutarate 8臂聚乙二醇-N-羟基琥珀酰亚胺酯 8臂聚乙二醇胺基 8臂聚乙二醇琥珀酰亚胺戊二酸酯 8臂聚乙二醇羟基 8臂聚乙二醇羧基 8臂聚乙二醇硝苯基碳酸盐 a,w- Di-maleinimids a,w- Di-NHS esters AA-PEG-AA Acetic Acid-PEG-Acetic Acid Acid-PEG-Fmoc-amine X=COOH,Y=Fmoc-NH,n=11 Ac-PEG-Ac Ac-PEG-MAL Ac-PEG-Maleimide Ac-PEG-SCM Ac-PEG-SVA ACRL-PEG-ACRL-1000 ACRL-PEG-ACRL-10K ACRL-PEG-ACRL-2000 ACRL-PEG-ACRL-20K ACRL-PEG-ACRL-3400 ACRL-PEG-ACRL-5000 ACRL-PEG-MAL-3400 ACRL-PEG-SCM-2000 ACRL-PEG-SCM-3400 ACRL-PEG-SCM-5000 ACRL-PEG-SVA-3400 Acrylate-PEG-Acrylate Acrylate-PEG-Maleimide Acrylate-PEG-SCM Acrylate-PEG-Succinimidyl Carboxymethyl Acrylate-PEG-Succinimidyl Valerate Acrylate-PEG-SVA Aldehyde-PEG-Aldehyde ALD-PEG-ALD a-Methoxy-w-azides a-Methoxy-w-maleinimids a-Methoxy-w-NHS esters Amine-PEG-Amine Amine-PEG-Amine X=Y=NH2,n=18 Amine-PEG-Azido Amine-PEG-Boc-amine,X=NH2,Y=Boc-NH,n=6 Amine-PEG-Carboxyl Amine-PEG-Silane Amine-PEG-Thiol Amine-PEG-Valeric Acid Amino-PEG-Carboxyl Amino-PEG-CM Amino-PEG-COOH Azide-PEG-amine Azide-PEG-amine X=NH2,Y=N3,n=5 azide-PEG-azide Azide-PEG-Biotin Azide-PEG-Carboxyl Azide-PEG-hydroxyl Azide-PEG-N-hydroxysuccinimide Azido-PEG Azido-PEG amine a-氨基盐酸盐-w-羧基聚乙二醇 a-羟基-w-琥珀酰亚胺丙酸酯聚乙二醇 a-羟基-w-马来酰亚胺聚乙二醇 a-羟基-w-羧基聚乙二醇 bALD-PEG-bALD bALD-PEG-bALD-10K bALD-PEG-bALD-3400 bALD-PEG-bALD-5K Biotin PEG acid Biotin PEG amine Biotin PEG disulfide Biotin-CONH-PEG-NH2 Biotin-CONH-PEG-O-C3H6-CONHS Biotin-CONH-PEG-O-C3H6-COOH Biotin-PEG-Amino Biotin-PEG-Biotin Biotin-PEG-Carboxyl Biotin-PEG-COOH Biotin-PEG-disulfide Biotin-PEG-FITC Biotin-PEG-Fluorescein Biotin-PEG-Mal Biotin-PEG-MAL-3400 Biotin-PEG-MAL-5000 Biotin-PEG-Maleimide Biotin-PEG-Mercaptopropionyl Biotin-PEG-Methacrylamide Biotin-PEG-NH2 Biotin-PEG-NH2-2000 Biotin-PEG-NH2-3400 Biotin-PEG-NH2-5000 Biotin-PEG-NHS Biotin-PEG-N-hydroxysuccinimide Biotin-PEG-S2 Biotin-PEG-SC Biotin-PEG-SC-2000 Biotin-PEG-SC-3400 Biotin-PEG-SC-5000 Biotin-PEG-SCM Biotin-PEG-SCM-3400 Biotin-PEG-SCM-5000 Biotin-PEG-SH Biotin-PEG-SIL-3400 Biotin-PEG-Silane Biotin-PEG-Succinimidyl Carbonate Biotin-PEG-Succinimidyl Carboxymethyl Biotin-PEG-Succinimidyl Valerate Biotin-PEG-SVA Biotin-PEG-SVA-3400 Biotin-PEG-SVA-5000 BO-050TS Boc-amino PEG amine Boc-amino PEG diglycolic acid Boc-amino PEG propionic acid BOC-NH-PEG-Amine BOC-NH-PEG-COOH BOC-NH-PEG-diglycolic acid Boc-NH-PEG-Methacrylamide Boc-NH-PEG-NH2 BOC-NH-PEG-NH2-2000 BOC-NH-PEG-NH2-3400 BOC-NH-PEG-NHS BOC-NH-PEG-Nitrophenyl Carbonate BOC-NH-PEG-NPC BOC-NH-PEG-NPC-5000 Boc-NH-PEG-O-C3H6-CONHS Boc-NH-PEG-O-C3H6-COOH BOC-NH-PEG-OH BOC-NH-PEG-propionic acid BOC-NH-PEG-SC BOC-NH-PEG-SC-3400 BOC-NH-PEG-SC-5000 Boc-NH-PEG-SCM BOC-NH-PEG-SCM-1000 BOC-NH-PEG-SCM-2000 BOC-NH-PEG-SCM-3400 BOC-NH-PEG-SCM-5000 BOC-NH-PEG-SH BOC-NH-PEG-Succinimidyl Carbonate BOC-NH-PEG-Succinimidyl Carboxymethyl BOC-NH-PEG-TS BOC-NH-聚乙二醇-N-羟基琥珀酰亚胺 BOC-NH-聚乙二醇氨基 BOC-NH-聚乙二醇丙酸 BOC-NH-聚乙二醇二甘醇酸 BOC-NH-聚乙二醇琥珀酰亚胺 BOC-NH-聚乙二醇琥珀酰亚胺碳酸酯 BOC-NH-聚乙二醇硫醇 BOC-NH-聚乙二醇羟基 BOC-NH-聚乙二醇羧基 BOC-NH-聚乙二醇硝苯基碳酸盐 Boc-PEG-carbonateNHS Br-PEG-Br Butyraldehyde-PEG-Butyraldehyde Carbonyl imidazole-PEG-Carbonyl imidazole Carboxylic acid-PEG-Carboxylic acid Carboxyl-PEG-Carboxyl Carboxyl-PEG-Carboxyl,X=Y=COOH n=12 Carboxyl-PEG-Fmoc-amine X=COOH,Y=Fmoc-NH,n=11 Carboxyl-PEG-Silane Carboxymethyl-PEG-Succinimidyl Carboxymethyl Carboxymethyl-PEG-Thiol CDI-PEG-CDI CH3O-PEG-Br CH3O-PEG-C2H4-mal CH3O-PEG-C2H4-N3 CH3O-PEG-NH2 CH3O-PEG-NHCO-C2H4-CONHS CH3O-PEG-NH-CO-C4H8-CHO CH3O-PEG-NHCO-CH2-CH2-COOH CH3O-PEG-OH CH3O-PEG-SH CM-PEG-CM CM-PEG-CM-1000 CM-PEG-CM-2000 CM-PEG-CM-3400 CM-PEG-CM-5000 CM-PEG-SCM CM-PEG-SCM-35K CM-PEG-SH CM-PEG-SH-1000 CM-PEG-SH-2000 CM-PEG-SH-3400 CM-PEG-SH-5000 CM-PEG-Thiol CONHNH2-PEG-CONHNH2 CONHS-PEG-S-Trt COOH-PEG-COOH COOH-PEG-disulfide COOH-PEG-Fmoc-NH COOH-PEG-S2 COOH-PEG-SCM COOH-PEG-SH COOH-PEG-Silane DE-034AS DE-034GS DE-034HS DE-034PA DE-050SH DE-100GS DE-100HS DE-100MA DE-100PA DE-100SH DE-200GS DE-200HS DE-200MA DE-200PA DE-200SH DE-300PA Decaethylene Glycol Distearoylphosphatidylethanolamine-PEG-Acid Distearoylphosphatidylethanolamine-PEG-Amine Distearoylphosphatidylethanolamine-PEG-Biotin Distearoylphosphatidylethanolamine-PEG-Maleimide Distearoylphosphatidylethanolamine-PEG-N-hydroxysuccinimide Distearoylphosphatidylethanolamine-PEG-Orthopyridyl Disulfide Distearoylphosphatidylethanolamine-PEG-Succinimidyl Carboxymethyl Disulfide-PEG-SPA Dodecaethylene Glycol DSPE-020CN DSPE-020GS DSPE-020MA DSPE-020PA DSPE-050CN DSPE-050MA DSPE-050PA DSPE-AM0530K DSPE-Comb-shaped PEG DSPE-Multi-arm PEG DSPE-PEG DSPE-PEG-Acid DSPE-PEG-Amine DSPE-PEG-Amino DSPE-PEG-Biotin DSPE-PEG-Biotin-3400 DSPE-PEG-COOH DSPE-PEG-Mal DSPE-PEG-MAL-3400 DSPE-PEG-Maleimide DSPE-PEG-NH2 DSPE-PEG-NH2-2000 DSPE-PEG-NHS DSPE-PEG-N-hydroxysuccinimide DSPE-PEG-OPSS DSPE-PEG-SCM DSPE-PEG-Succinimidyl Carboxymethyl DSPE-PG8G DSPE-Polyglycerine DSPE-PTE020 Epoxide-PEG-Epoxide EPOX-PEG-EPOX-2K EPOX-PEG-EPOX-5K EP-PEG-EP FITC-PEG-COOH FITC-PEG-MAL FITC-PEG-NH2 FITC-PEG-NHS FITC-PEG-SCM FITC-PEG-SVA Fluorescein-PEG-Amine Fluorescein-PEG-Carboxyl Fluorescein-PEG-COOH Fluorescein-PEG-MAL Fluorescein-PEG-Maleimide Fluorescein-PEG-NH2 Fluorescein-PEG-NHS Fluorescein-PEG-N-hydroxysuccinimide Fluorescein-PEG-SCM Fluorescein-PEG-Succinimidyl Carboxymethyl Fluorescein-PEG-Succinimidyl Valerate Fluorescein-PEG-SVA FLUOR-PEG-MAL-3400 FLUOR-PEG-NH2-5000 FLUOR-PEG-SCM-20K FLUOR-PEG-SCM-3400 FLUOR-PEG-SCM-5000 FLUOR-PEG-SVA-3400 FLUOR-PEG-SVA-5000 Fmoc-amino PEG propionic acid Fmoc-NH-PEG-Amino FMOC-NH-PEG-Amino*TFA salt FMOC-NH-PEG-Carboxyl FMOC-NH-PEG-Carboxymethyl FMOC-NH-PEG-CM-3400 FMOC-NH-PEG-COOH Fmoc-NH-PEG-Hydroxy Fmoc-NH-PEG-NH2 FMOC-NH-PEG-NH2*TFA salt FMOC-NH-PEG-NH2-TFA-1K FMOC-NH-PEG-NH2-TFA-5K Fmoc-NH-PEG-NHS Fmoc-NH-PEG-O-C3H6-CONHS Fmoc-NH-PEG-O-C3H6-COOH Fmoc-NH-PEG-OH FMOC-NH-PEG-OH-5000 Fmoc-NH-PEG-propionic acid Fmoc-NH-PEG-SCM FMOC-NH-PEG-SCM-2000 FMOC-NH-PEG-SCM-3400 FMOC-NH-PEG-SCM-5000 Fmoc-NH-PEG-Succinimidyl Carboxymethyl Fmoc-NH-聚乙二醇胺基 FMOC-NH-聚乙二醇胺基*三氟乙酸盐 Fmoc-NH-聚乙二醇丙酸 Fmoc-NH-聚乙二醇琥珀酰亚胺 Fmoc-NH-聚乙二醇羟基 FMOC-NH-聚乙二醇羧基 GALA-NHS-35K GALA-PEG-NHS GALA-PEG-N-hydroxysuccinimide GA-PEG-GA GL2-400GS2 GL2-400MA GL2-400NP GL2-400PA GL2-400TS GLUC-NHS-35K GLUC-PEG-NHS GLUC-PEG-N-hydroxysuccinimide Glutaric Acid-PEG-Glutaric Acid H2N-PEG-NH-Boc H2N-PEG-NHCO-C2H4-S-Trt H2N-PEG-O-C3H6-COOH x HCl HCl.NH2-PEG-Carboxymethyl HCl.NH2-PEG-COOH Heptaethylene Glycol Hexaethylene Glycol HGEO-200GS HGEO-200NP HO-020PA HO-034PA HO-050AL HO-050PA HO-100AL HO-200AL HO-300AL HOOC-PEG-COOH HOOC-PEG-Silane HO-P-COOH-10K-1G HO-P-COOH-20K-1G HO-P-COOH-40K-1G HO-P-COOH-5K-1G HO-PEG-Acetaldehyde HO-PEG-ALD HO-PEG-Amino HO-PEG-Carboxymethyl HO-PEG-CM HO-PEG-CM-3400 HO-PEG-COOH HO-PEG-MAL HO-PEG-MAL-3400 HO-PEG-MAL-5000 HO-PEG-Maleimide HO-PEG-N3 HO-PEG-NH2 HO-PEG-NH2-1000 HO-PEG-NH2-3400 HO-PEG-NH2-35K HO-PEG-NH2-5000 HO-PEG-NH-Boc HO-PEG-NHCO-C2H4-CONH-NH-Boc HO-PEG-NHCO-C2H4-COOH HO-PEG-NHCO-C2H4-SH HO-PEG-NHCO-C2H4-S-Trt HO-PEG-NHCO-S-Trt HO-PEG-OH HO-PEG-SPA HO-PEG-Succinimidyl propionate HO-PEG-tBu-Propionate HO-PEG-Tosylate HO-P-MAL-10K-1G HO-P-MAL-20K-1G HO-P-MAL-5K-1G HO-P-SPA-10K-1G HO-P-SPA-20K-1G HO-P-SPA-40K-1G HO-P-SPA-5K-1G HS-C2H4-CONH-PEG-O-C3H6-COOH HS-PEG-Carboxyl HS-PEG-NH2 x HCl HS-PEG-NHCO-C2H4-CONH-NH-Boc HS-PEG-SH Hydrazide-PEG-Hydrazide Hydroxyl-PEG-propylaldehyde Hydroxyl-PEG-propylamine Hydroxy-PEG-Amino Hydroxy-PEG-Carboxyl Hydroxy-PEG-Hydroxy Hydroxy-PEG-Maleimide Hydroxy-PEG-Succinimidyl propionate Hydroxy-PEG-Tosylate HZ-PEG-HZ HZ-PEG-HZ-2000 HZ-PEG-HZ-3400 Isocyanate-PEG-Isocyanate MA-050TS MAc-PEG-MAc M-ALD-20K Maleimide-PEG-Amino Maleimide-PEG-carbonate NHS Maleimide-PEG-Carboxyl Maleimide-PEG-Maleimide Maleimide-PEG-NHS Maleimide-PEG-N-hydroxysuccinimide Maleimide-PEG-SCM Maleimide-PEG-Silane Maleimide-PEG-Succinimidyl Carbonate Maleimide-PEG-Succinimidyl Carboxymethyl Maleimide-PEG-Succinimidyl Valerate Maleimide-PEG-SVA Maleimidopropionyl-PEG NHS ester Malhex-NH-PEG-NHCO-Biotin Malhex-NH-PEG-O-C3H6-CONHS Malhex-NH-PEG-O-C3H6-COOH MAL-PEG-Amino Mal-PEG-Biotin MAL-PEG-Carboxyl Mal-PEG-COOH Mal-PEG-Mal MAL-PEG-MAL-10K MAL-PEG-MAL-2K MAL-PEG-MAL-3400 MAL-PEG-MAL-5K MAL-PEG-NH2 Mal-PEG-NHS MAL-PEG-SC MAL-PEG-SCM MAL-PEG-SCM-10K MAL-PEG-SCM-2000 MAL-PEG-SCM-3400 MAL-PEG-SCM-5000 MAL-PEG-Silane Mal-PEG-SVA MAL-PEG-SVA-3400 MAL-PEG-TS ME-020AS ME-020CS ME-020MA ME-020SH ME-050AL ME-050AS ME-050CS ME-050GS ME-050HS ME-050MA ME-050SH ME-100AL ME-100SH ME-120MA ME-200AL ME-200GS ME-200HS ME-200MA ME-200SH ME-300AL ME-300GS ME-300MA ME-300SH MENP-10T MENP-20H MENP-20T MENP-30T MENP-50H MEPA-020H MEPA-050H MEPA-12T MEPA-20T MEPA-30T Mesylate-PEG-Mesylate Methacrylate-PEG-Methacrylate Methoxyl Decaethylene Glycol Methoxyl Dodecaethylene Glycol Methoxyl Heptaethylene Glycol Methoxyl Hexaethylene Glycol Methoxyl Nonaethylene Glycol Methoxyl Octaethylene Glycol Methoxyl Pentaethylene Glycol Methoxyl Undecaethlyene Glycol Methoxy-PEG-Acetaldehyde Methoxy-PEG-Acrylate Methoxy-PEG-Alkyne Methoxy-PEG-Amine Methoxy-PEG-Amino Methoxy-PEG-Azide Methoxy-PEG-Azido Methoxy-PEG-Biotin Methoxy-PEG-b-Poly(methyl methacrylate) Methoxy-PEG-b-Poly(ε-caprolactone) Methoxy-PEG-b-Polyacrylonitrile Methoxy-PEG-b-Polyisoprene Methoxy-PEG-b-Polystyrene Methoxy-PEG-Butyraldehyde Methoxy-PEG-Carbonyl imidazole Methoxy-PEG-Carboxyl Methoxy-PEG-CH2NH2 Methoxy-PEG-Dansyl Methoxy-PEG-Distearoylphosphatidylethanolamine Methoxy-PEG-Epoxide Methoxy-PEG-FITC Methoxy-PEG-Fluorescent Dye Methoxy-PEG-Hydrazide Methoxy-PEG-hydroxyl Methoxy-PEG-Isocyanate Methoxy-PEG-Maleimide Methoxy-PEG-Mesylate Methoxy-PEG-mPEG-Succinimidyl Valerate Methoxy-PEG-Nitrophenyl Carbonate Methoxy-PEG-Orthopyridyl Disulfide Methoxy-PEG-Poly(lactic acid) Methoxy-PEG-PPMaleimide Methoxy-PEG-Propionaldehyde Methoxy-PEG-propionic acid Methoxy-PEG-p-tolylsulfonyl Methoxy-PEG-Rhodamine Methoxy-PEG-Silane Methoxy-PEG-Succinimidyl butanoate Methoxy-PEG-Succinimidyl Carbonate Methoxy-PEG-Succinimidyl Carboxymethyl Methoxy-PEG-Succinimidyl Glutarate Methoxy-PEG-Succinimidyl propionate Methoxy-PEG-Succinimidyl Succinate Methoxy-PEG-Succinimidyl succinate ester Methoxy-PEG-Texas Red Methoxy-PEG-Thiol Methoxy-PEG-Thiol （Sulphydryl） Methoxy-PEG-Tosylate Methoxy-PEG-Vinylsulfone Methoxy-poly(ethylene glycol)-block-poly(L-aspartic acid sodium salt) Methoxy-poly(ethylene glycol)-block-poly(L-glutamic acid sodium salt) Methoxy-poly(ethylene glycol)-block-poly(L-lysine hydrochloride) Methoxy-poly(ethylene glycol)-block-poly(L-lysine trifluoroacetate) M-MAL-20K M-NH2-20K MP-ALD-10K-5G MP-ALD-20K-5G MP-ALD-5K-5G MP-B-PAN-10K-1G MP-B-PAN-20K-1G MP-B-PAN-5K-1G MP-B-PCL-10K-1G MP-B-PCL-20K-1G MP-B-PCL-5K-1G MP-B-PI-10K-1G MP-B-PI-20K-1G MP-B-PMMA-10K-1G MP-B-PMMA-20K-1G MP-B-PMMA-5K-1G MP-B-PS-10K-1G MP-B-PS-15K-1G MP-B-PS-20K-1G mPEG acid mPEG disulfide mPEG thiol mPEG-(CH2)5COO-NHS mPEG1000-b-PLD10 mPEG1000-b-PLD100 mPEG1000-b-PLD50 mPEG1000-b-PLE10 mPEG1000-b-PLE100 mPEG1000-b-PLE200 mPEG1000-b-PLE50 mPEG1000-b-PLKC10 mPEG1000-b-PLKC100 mPEG1000-b-PLKC200 mPEG1000-b-PLKC50 mPEG1000-b-PLKF10 mPEG1000-b-PLKF100 mPEG1000-b-PLKF200 mPEG1000-b-PLKF50 mPEG-11 mPEG20000-b-PLD10 mPEG20000-b-PLD100 mPEG20000-b-PLD50 mPEG20000-b-PLE10 mPEG20000-b-PLE100 mPEG20000-b-PLE200 mPEG20000-b-PLE50 mPEG20000-b-PLKC10 mPEG20000-b-PLKC100 mPEG20000-b-PLKC200 mPEG20000-b-PLKC50 mPEG20000-b-PLKF10 mPEG20000-b-PLKF100 mPEG20000-b-PLKF200 mPEG20000-b-PLKF50 mPEG2-ALD mPEG2-NHS mPEG5000-b-PLD10 mPEG5000-b-PLD100 mPEG5000-b-PLD50 mPEG5000-b-PLE10 mPEG5000-b-PLE100 mPEG5000-b-PLE200 mPEG5000-b-PLE50 mPEG5000-b-PLKC10 mPEG5000-b-PLKC100 mPEG5000-b-PLKC200 mPEG5000-b-PLKC50 mPEG5000-b-PLKF10 mPEG5000-b-PLKF100 mPEG5000-b-PLKF200 mPEG5000-b-PLKF50 mPEG-7 mPEG-AC mPEG-Acetaldehyde mPEG-Acetylene mPEG-acid (x=COOH,n=11)) mPEG-Acr MPEG-ACRL-10K MPEG-ACRL-5000 mPEG-Acrylate mPEG-ALC mPEG-ALD MPEG-ALD-20K MPEG-ALD-30K MPEG-ALD-5000 mPEG-Alkyne mPEG-Amine mPEG-Amino mPEG-Azide mPEG-Azido mPEG-bALD MPEG-bALD-20K MPEG-bALD-30K MPEG-bALD-5K mPEG-Biotin MPEG-Biotin-2000 MPEG-Biotin-20K MPEG-Biotin-5000 mPEG-b-PAN mPEG-b-PCL mPEG-b-PI mPEG-b-PLD mPEG-b-PLE mPEG-b-PLKC mPEG-b-PLKF mPEG-b-PMMA mPEG-b-Poly(methyl methacrylate) mPEG-b-Poly(ε-caprolactone) mPEG-b-Polyacrylonitrile mPEG-b-Polyisoprene mPEG-b-Polystyrene mPEG-b-PS mPEG-Br mPEG-BTC mPEG-butyrALD mPEG-Butyraldehyde mPEG-Carbonyl imidazole mPEG-Carboxyl (x=COOH,n=11)) mPEG-Carboxymethyl mPEG-carboxymethyl-NHS mPEG-carboxypentyl-NHS mPEG-CDI mPEG-CH2COO-NHS mPEG-CH2NH2 mPEG-CM MPEG-CM-10K MPEG-CM-2000 MPEG-CM-20K MPEG-CM-5000 mPEG-COCH2CH2 CH2COO-NHS mPEG-COCH2CH2COO-NHS mPEG-CONHNH2 mPEG-COOH mPEG-Dansyl mPEG-Distearoylphosphatidylethanolamine mPEG-disulfide mPEG-DSPE MPEG-DSPE-5000 mPEG-EP mPEG-Epoxide mPEG-FITC mPEG-Fluorescent Dye mPEG-glutaryl-NHS mPEG-Hydrazide mPEG-Hydroxy MPEG-HZ-10K MPEG-HZ-2000 MPEG-HZ-20K MPEG-HZ-5000 mPEG-iodoacetamide mPEG-Isocyanate mPEG-MAc mPEG-MAL MPEG-MAL-10K mPEG-MAL-2000 MPEG-MAL-20K MPEG-MAL-30K MPEG-MAL-5000 mPEG-Maleimide mPEG-Mesylate mPEG-mPEG-Succinimidyl Valerate mPEG-Ms mPEG-N3 mPEG-NCO mPEG-NH2 MPEG-NH2-1000 MPEG-NH2-10K MPEG-NH2-2000 MPEG-NH2-20K MPEG-NH2-30K MPEG-NH2-5000 MPEG-NH2-550 mPEG-NH2-BALD mPEG-NH2-PALD mPEG-NHNH2 mPEG-NHS mPEG-Nitrophenyl Carbonate mPEG-nitrophenylcarbonate mPEG-NPC mPEG-NPC-1000 mPEG-NPC-10K mPEG-NPC-2000 mPEG-NPC-20K MPEG-NPC-5000 mPEG-OCOOPhNO2 mPEG-OH mPEG-OPSS MPEG-OPSS-10K MPEG-OPSS-2000 MPEG-OPSS-5000 mPEG-Orthopyridyl Disulfide MPEG-OTS mPEG-PA mPEG-PALD mPEG-PAN mPEG-PCL mPEG-PI mPEG-PLA MPEG-PLA-5000 mPEG-PMMA mPEG-Poly(lactic acid) mPEG-PPMAL mPEG-PPMaleimide mPEG-Propionaldehyde mPEG-propionic acid mPEG-propylaldehyde mPEG-propylamine mPEG-PS MPEG-p-tolylsulfonyl mPEG-Rhodamine mPEG-S mPEG-S2 mPEG-SBA mPEG-SC mPEG-SCM MPEG-SCM-10K MPEG-SCM-20K mPEG-SCM-2K MPEG-SCM-5000 mPEG-SG MPEG-SG-10K MPEG-SG-2000 MPEG-SG-20K MPEG-SG-5000 MPEG-SG-50K mPEG-SH MPEG-SH-1000 MPEG-SH-10K MPEG-SH-2000 MPEG-SH-20K MPEG-SH-5000 MPEG-SIL-1000 MPEG-SIL-2000 MPEG-SIL-5000 mPEG-Silane mPEG-SPA MPEG-SPA-550-1g mPEG-SS MPEG-SS-20K MPEG-SS-30K MPEG-SS-5000 mPEG-Succinic acid mPEG-Succinimidyl butanoate mPEG-Succinimidyl Carbonate mPEG-Succinimidyl Carboxymethyl mPEG-Succinimidyl Glutarate mPEG-Succinimidyl propionate mPEG-Succinimidyl Succinate mPEG-Succinimidyl succinate ester mPEG-succinyl-NHS mPEG-SVA MPEG-SVA-10K MPEG-SVA-2000 MPEG-SVA-20K MPEG-SVA-30K MPEG-SVA-5000 mPEG-Texas Red mPEG-thiol mPEG-Thiol （Sulphydryl） mPEG-Thiol (x=SH,n=6) mPEG-TOSYL MPEG-TOSYL-30K mPEG-Tosylate mPEG-Ts mPEG-urethane-BALD mPEG-urethane-PALD mPEG-Vinylsulfone mPEG-VS MP-MAL-10K-5G MP-MAL-20K-5G MP-MAL-5K-5G MP-NH2-10K-5G MP-NH2-5K-5G MP-SBA-10K-5G MP-SBA-20K-5G MP-SBA-5K-5G MP-SC-10K-5G MP-SC-20K-5G MP-SC-40K-5G MP-SC-5K-5G MP-SPA-10K-5G MP-SPA-20K-5G MP-SPA-5K-5G MP-SS-10K-5G MP-SS-20K-5G MP-SS-40K-5G MP-SS-5K-5G M-SC-20K M-SCM-20K M-SCM-30K M-SCM-35K M-SH-20K Ms-PEG-Ms Multi-branched PEG M-VS-20K N3-PEG-amine N3-PEG-Biotin N3-PEG-Carboxyl N3-PEG-COOH N3-PEG-Diglycolic Acid N3-PEG-hydroxyl N3-PEG-N3 N3-PEG-NH2 N3-PEG-NHS N3-PEG-OH NCO-PEG-NCO NH2HCL-P-COOH-10K-1G NH2HCL-P-COOH-20K-1G NH2HCL-P-COOH-5K-1G NH2NH-PEG-NHNH2 NH2-PEG-Azido NH2-PEG-Boc-NH NH2-PEG-CM NH2-PEG-CM-1000 NH2-PEG-CM-10K NH2-PEG-CM-2000 NH2-PEG-CM-3400 NH2-PEG-CM-5000 NH2-PEG-COOH NH2-PEG-N3 NH2-PEG-NH2 NH2-PEG-NH2-10K NH2-PEG-NH2-1K NH2-PEG-NH2-20K NH2-PEG-NH2-2K NH2-PEG-NH2-3400 NH2-PEG-NH2-35K NH2-PEG-NH2-5K NH2-PEG-OH NH2-PEG-SH NH2-PEG-SH-1K NH2-PEG-SH-20K NH2-PEG-SH-5K NH2-PEG-Silane NH2-PEG-S-Trt NH2-PEG-VA NH2-PEG-VA-3400 NH2-PEG-VA-5K NH2-PEG-Valeric Acid NHS-PEG-disulfide NHS-PEG-NHS NHS-PEG-S2 N-hydroxysuccinimide-PEG-N-hydroxysuccinimide Nitrophenyl Carbonate -PEG-Nitrophenyl Carbonate Nitrophenyl Carbonate-PEG-Nitrophenyl Carbonate Nonaethylene Glycol NPC-PEG-NPC NPC-PEG-NPC-2000 NPC-PEG-NPC-3400 N-羟基琥珀酰亚胺聚乙二醇二硫 N-羟基琥珀酰亚胺酯-聚乙二醇-N-羟基琥珀酰亚胺酯 Octacosaethylene Glycol Octaethylene Glycol OPPS-PEG-OPSS OPSS-PEG-Carboxyl OPSS-PEG-CM-5000 OPSS-PEG-COOH OPSS-PEG-NHS OPSS-PEG-N-hydroxysuccinimide OPSS-PEG-OPSS OPSS-PEG-OPSS-10K OPSS-PEG-OPSS-2000 OPSS-PEG-OPSS-3400 OPSS-PEG-SC OPSS-PEG-SCM OPSS-PEG-SCM-3400 OPSS-PEG-Succinimidyl Carbonate OPSS-PEG-Succinimidyl Carboxymethyl OPSS-PEG–Succinimidyl Carboxymethyl OPSS-PEG-Succinimidyl Valerate OPSS-PEG-SVA OPSS-PEG-SVA-2000 OPSS-PEG-SVA-3400 OPSS-PEG-SVA-5000 Orthopyridyl Disulfide-PEG-Carboxyl Orthopyridyl Disulfide-PEG-N-hydroxysuccinimide Orthopyridyl Disulfide-PEG-Orthopyridyl Disulfide Orthopyridyl Disulfide-PEG-Succinimidyl Carbonate Orthopyridyl Disulfide-PEG-Succinimidyl Carboxymethyl Orthopyridyl Disulfide-PEG-Succinimidyl Valerate PEG8A-AM-10k PEG8A-AM-20k PEG8A-AM-40k PEG8A-C-10k PEG8A-C-20k PEG8A-C-40k PEG8A-N-10k PEG8A-N-20k PEG8A-N-40k PEG-Diamine PEG-dibenzoate PEG-dicarboxymethyl NHS PEG-dicarboxypentylNHS PEG-diglutarateNHS PEG-dimaleimide PEG-dimethyl ether PEG-dipropylamine PEG-dithiol PEG-octaglutaryl NHS PEG-octanitrophenylcarbonate Peg-S01 PEG-SET-NHS PEG-sorbitan tetraoleate PEG-sorbitol hexaoleate PEG-tetracarboxypentyl NHS PEG-tetraglutaryl NHS PEG-tetramaleimide PEG-tetranitrophenylcarbonate PEG-tetrapropylamine PEG-tetrathiol RB-PEG-NH2 Rhodamine B-PEG-Amine Rhodamine-PEG-NH2 SA-PEG-SA SCM-PEG-SCM SCM-PEG-SCM-3400 SC-PEG-CM SC-PEG-CM(methyl ester) SC-PEG-CMme-3400 SC-PEG-COOH SG-PEG-SG SG-PEG-SG-10K SG-PEG-SG-2000 SG-PEG-SG-3400 SG-PEG-SG-5K SH-PEG-Biotin SH-PEG-COOH SH-PEG-IDA SH-PEG-NH2 SH-PEG-OH SH-PEG-SH SH-PEG-SH（Sulphydryl） SH-PEG-SH-10K SH-PEG-SH-3400 SH-PEG-SH-5K SH-PEG-Silane Silane-PEG-Amine Silane-PEG-NH2 Silane-PEG-Silane SIL-PEG-SIL-3400 SS-PEG-SS SS-PEG-SS-2000 SS-PEG-SS-3400 Succinic Acid-PEG-Succinic Acid Succinimidyl Carbonate-PEG-Carboxyl Succinimidyl Carbonate-PEG-COOH Succinimidyl Carboxymethyl-PEG-Succinimidyl Carboxymethyl Succinimidyl Glutarate-PEG-Succinimidyl Glutarate Succinimidyl Succinate-PEG-Succinimidyl Succinate Sulphydryl-PEG-Biotin Sulphydryl-PEG-COOH Sulphydryl-PEG-Silane Thiol-PEG-acid X=SH,Y=COOH,n=7 Thiol-PEG-Amine （Sulphydryl） Thiol-PEG-Biotin Thiol-PEG-Carboxyl Thiol-PEG-Carboxyl （Sulphydryl） Thiol-PEG-Carboxyl X=SH,Y=COOH,n=7 Thiol-PEG-Hydroxy Thiol-PEG-OH Thiol-PEG-Silane （Sulphydryl） Thiol-PEG-Thiol Thiol-PEG-Thiol （Sulphydryl） Tosylate-PEG-Tosylate TOSYL-PEG-TOSYL TOSYL-PEG-TOSYL-35K Trt-S-C2H4-CONH-PEG-O-C3H6-CONHS Ts-PEG-Ts Valeric Acid-PEG-Valeric Acid VA-PEG-VA VA-PEG-VA-20K VA-PEG-VA-5000 VA-PEG-Valeric Acid Y-2-NHS-40K Y-ALD-40K Y-H-MAL-40K Y-MAL-40K Y-NHS-40K Y-O-NHS-40K Y-P-MAL-40K Y型聚乙二醇NHS酯 Y型聚乙二醇-N-羟基琥珀酰亚胺 Y型聚乙二醇氨基 Y型聚乙二醇琥珀酰亚胺戊二酸酯 Y型聚乙二醇赖氨酸-NS Y型聚乙二醇马来酰亚胺 Y型聚乙二醇乙醛 氨基聚乙二醇叠氮钠 胺基聚乙二醇-Boc-胺基 胺基聚乙二醇胺基 胺基聚乙二醇硅烷 胺基聚乙二醇硫醇 胺基聚乙二醇羧基 胺基聚乙二醇戊酸 八聚乙二醇 半乳糖聚乙二醇NHS酯 半乳糖聚乙二醇-N-羟基琥珀酰亚胺 丙烯酸酯聚乙二醇丙烯酸酯 丙烯酸酯聚乙二醇琥珀酰亚胺 丙烯酸酯聚乙二醇琥珀酰亚胺戊酸酯 丙烯酸酯聚乙二醇马来酰亚胺 单甲氧基八聚乙二醇 单甲氧基九聚乙二醇 单甲氧基聚乙二醇-N-羟基琥珀酰亚胺 单甲氧基聚乙二醇PP马来酰亚胺 单甲氧基聚乙二醇Texas Red荧光染料 单甲氧基聚乙二醇氨甲基 单甲氧基聚乙二醇胺基 单甲氧基聚乙二醇丙醛 单甲氧基聚乙二醇丙酸 单甲氧基聚乙二醇丙烯酸酯 单甲氧基聚乙二醇丹磺酰 单甲氧基聚乙二醇叠氮 单甲氧基聚乙二醇叠氮钠 单甲氧基聚乙二醇丁醛 单甲氧基聚乙二醇对甲苯磺酸 单甲氧基聚乙二醇对甲苯磺酰基 单甲氧基聚乙二醇对硝基苯酚碳酸酯 单甲氧基聚乙二醇二硫 单甲氧基聚乙二醇二硫化正吡啶 单甲氧基聚乙二醇二硬脂酰甘油磷脂乙醇胺 单甲氧基聚乙二醇硅烷 单甲氧基聚乙二醇琥珀酰亚胺 单甲氧基聚乙二醇琥珀酰亚胺丙酸酸酯 单甲氧基聚乙二醇琥珀酰亚胺丁二酸酯 单甲氧基聚乙二醇琥珀酰亚胺丁酸酯 单甲氧基聚乙二醇琥珀酰亚胺琥珀酸酯 单甲氧基聚乙二醇琥珀酰亚胺碳酸酯 单甲氧基聚乙二醇琥珀酰亚胺戊二酸酯 单甲氧基聚乙二醇琥珀酰亚胺戊酸酯 单甲氧基聚乙二醇琥珀酰酯酸 单甲氧基聚乙二醇环氧丙烷 单甲氧基聚乙二醇甲磺酸 单甲氧基聚乙二醇硫醇 单甲氧基聚乙二醇罗丹明 单甲氧基聚乙二醇马来酰亚胺 单甲氧基聚乙二醇嵌段共聚L-谷氨酸钠 单甲氧基聚乙二醇嵌段共聚L－赖氨酸三氟乙酸 单甲氧基聚乙二醇嵌段共聚L－赖氨酸盐酸盐 单甲氧基聚乙二醇嵌段共聚L-天冬氨酸钠 单甲氧基聚乙二醇羟基 单甲氧基聚乙二醇巯基 (硫醇) 单甲氧基聚乙二醇生物素 单甲氧基聚乙二醇羧基 单甲氧基聚乙二醇羰基咪唑 单甲氧基聚乙二醇酰肼 单甲氧基聚乙二醇硝苯基碳酸盐 单甲氧基聚乙二醇溴 单甲氧基聚乙二醇乙醛 单甲氧基聚乙二醇乙炔 单甲氧基聚乙二醇乙烯砜 单甲氧基聚乙二醇异氰酸酯 单甲氧基聚乙二醇荧光FITC 单甲氧基聚乙二醇荧光染料 单甲氧基六聚乙二醇 单甲氧基七聚乙二醇 单甲氧基十二聚乙二醇 单甲氧基十聚乙二醇 单甲氧基十一聚乙二醇 单甲氧基戊聚乙二醇 叠氮化聚乙二醇-N-羟基琥珀酰亚胺酯 叠氮化聚乙二醇胺基 叠氮化聚乙二醇羟基 叠氮化聚乙二醇生物素 叠氮化聚乙二醇羧基 叠氮聚乙二醇叠氮 丁二酸聚乙二醇丁二酸 丁醛聚乙二醇丁醛 对甲苯磺酸聚乙二醇对甲苯磺酸 多缩丙三醇二硬脂酰甘油磷脂乙醇胺 二硫化正吡啶聚乙二醇N-羟基琥珀酰亚胺酯 二硫化正吡啶聚乙二醇二硫化正吡啶 二十八聚乙二醇 二硬脂酰甘油磷脂乙醇胺聚乙二醇-N-羟基琥珀酰亚胺 二硬脂酰甘油磷脂乙醇胺聚乙二醇氨基 二硬脂酰甘油磷脂乙醇胺聚乙二醇琥珀酰亚胺 二硬脂酰甘油磷脂乙醇胺聚乙二醇马来酰亚胺 二硬脂酰甘油磷脂乙醇胺聚乙二醇生物素 二硬脂酰甘油磷脂乙醇二硫化正吡啶 二硬脂酰甘油磷脂乙醇羧基 硅烷聚乙二醇胺基 硅烷聚乙二醇硅烷 琥珀酰亚胺丁二酸酯聚乙二醇琥珀酰亚胺丁二酸酯 琥珀酰亚胺聚乙二醇琥珀酰亚胺 琥珀酰亚胺碳酸酯聚乙二醇羧基 琥珀酰亚胺碳酸酯聚乙二醇羧基(甲酯) 琥珀酰亚胺戊二酸酯聚乙二醇琥珀酰亚胺戊二酸酯 环氧丙烷聚乙二醇环氧丙烷 甲磺酸聚乙二醇甲磺酸 甲基丙烯酸聚乙二醇甲基丙烯酸 甲氧基聚乙二醇丙醛 甲氧基聚乙二醇马来酰亚胺 甲氧基聚乙二醇巯酯 甲氧基聚乙二醇碳酸酯 甲氧基聚乙二醇乙酸酯 九聚乙二醇 聚L-谷氨酸钠 聚L－赖氨酸三氟乙酸 聚L－赖氨酸盐酸盐 聚L-天冬氨酸钠 聚乳酸-聚乙二醇单甲醚共聚物 聚乙二醇单月桂酸酯 聚乙二醇二苯甲酸酯 聚乙二醇二甲醚 聚乙二醇和聚ε-己内酯的嵌段共聚物 聚乙二醇和聚苯乙烯的嵌段共聚物 聚乙二醇和聚丙烯腈的嵌段共聚物 聚乙二醇和聚甲基丙烯酸甲酯的嵌段共聚物 聚乙二醇和聚异戊二烯的嵌段共聚物 聚乙二醇失水山梨醇六油酸酯 聚乙二醇失水山梨醇四油酸酯 硫醇聚乙二醇硫醇 硫醇聚乙二醇羧基 六聚乙二醇 罗丹明B聚乙二醇氨基 马来酰亚胺聚乙二醇-N-羟基琥珀酰亚胺 马来酰亚胺聚乙二醇胺基 马来酰亚胺聚乙二醇硅烷 马来酰亚胺聚乙二醇琥珀酰亚胺 马来酰亚胺聚乙二醇琥珀酰亚胺碳酸酯 马来酰亚胺聚乙二醇琥珀酰亚胺戊酸酯 马来酰亚胺聚乙二醇马来酰亚胺 马来酰亚胺聚乙二醇羧基 葡萄糖聚乙二醇NHS酯 葡萄糖聚乙二醇-N-羟基琥珀酰亚胺 七聚乙二醇 羟基聚乙二醇-tBu-Propionate 羟基聚乙二醇胺基 羟基聚乙二醇对甲苯磺酸 羟基聚乙二醇马来酰亚胺 羟基聚乙二醇羟基 羟基聚乙二醇羧基 羟基聚乙二醇乙醛 巯基聚乙二醇胺基 (硫醇) 巯基聚乙二醇硅烷 (硫醇) 巯基聚乙二醇羟基 (硫醇) 巯基聚乙二醇巯基 (硫醇) 巯基聚乙二醇生物素 巯基聚乙二醇羧基 (硫醇) 生物素聚乙二醇-N-羟基琥珀酰亚胺酯 生物素聚乙二醇胺基 生物素聚乙二醇二硫 生物素聚乙二醇硅烷 生物素聚乙二醇琥珀酰亚胺 生物素聚乙二醇琥珀酰亚胺碳酸酯 生物素聚乙二醇琥珀酰亚胺戊酸酯 生物素聚乙二醇马来酰亚胺 生物素聚乙二醇生物素 生物素聚乙二醇羧基 生物素聚乙二醇荧光素 十二聚乙二醇 十聚乙二醇 梳狀聚乙二醇二硬脂酰甘油磷脂乙醇胺 羧基聚乙二醇Fmoc-胺基 羧基聚乙二醇二硫 羧基聚乙二醇硅烷 羧基聚乙二醇琥珀酰亚胺 羧基聚乙二醇硫醇 羧基聚乙二醇羧基 羧基戊基琥珀酰亚胺聚乙二醇羧基戊基琥珀酰亚胺 羰基咪唑聚乙二醇羰基咪唑 戊二酸聚乙二醇戊二酸 戊聚乙二醇 戊酸聚乙二醇戊酸 酰肼聚乙二醇酰肼 硝苯基碳酸盐聚乙二醇硝苯基碳酸盐 溴聚乙二醇溴 乙醛聚乙二醇乙醛 乙酸聚乙二醇乙酸 异氰酸酯聚乙二醇异氰酸酯 荧光素聚乙二醇N-羟基琥珀酰亚胺酯 荧光素聚乙二醇氨基 荧光素聚乙二醇琥珀酰亚胺 荧光素聚乙二醇琥珀酰亚胺戊酸酯 荧光素聚乙二醇马来酰亚胺 荧光素聚乙二醇羧基 正吡啶二硫化聚乙二醇-N-羟基琥珀酰亚胺 正吡啶二硫化聚乙二醇琥珀酰亚胺 正吡啶二硫化聚乙二醇琥珀酰亚胺碳酸酯 正吡啶二硫化聚乙二醇琥珀酰亚胺戊酸酯 正吡啶二硫化聚乙二醇羧基