Polydispersed Carboxylic Acid(COOH) PEGs

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Carboxylic Acid(COOH) PEG

Carboxylic Acid PEG (COOH PEG) is a linear PEG derivative with a terminal carboxyl (-COOH) group, offering an active site for conjugation or further chemical modification. Its excellent biocompatibility, hydrophilicity, and stability make it widely used in drug delivery, imaging, diagnostics, and hydrogel development. By adjusting molecular weight and structure, researchers can optimize solubility, circulation time, and degradation rate for specific biomedical applications.

We offer COOH PEGs from gram to 100 kg GMP-grade supply with high purity, batch consistency, and full analytical support—ideal for research and commercial-scale manufacturing.

Catalog No.	Name	Structure	M.W.	Purity	Buy
MF001017	mPEG-COOH			≥95%

MF001121	mPEG-AA			≥95%

MF001016	mPEG-CH2CH2COOH			≥95%

MF001358	mPEG-VA			≥95%

MF001015	mPEG-SAA			≥95%

MF001014	mPEG-GAA			≥95%

MF001013	mPEG-SA			≥95%

MF001012	mPEG-GA			≥95%

MF001213	mPEG-MTA			≥95%

HE002121	OH-PEG-AA			≥95%

HE002017	OH-PEG-COOH			≥95%

HE002016	OH-PEG-PA			≥95%

HE002013	OH-PEG-SA			≥95%

HE005017	NH2-PEG-COOH			≥95%

HE005014	NH2-PEG-GAA			≥95%

HE005016	NH2-PEG-PA			≥95%

HE017067	COOH-PEG-CH2CH2COOtBu			≥95%

HE017006	COOH-PEG-N3			≥95%

HE017050	COOH-PEG-NH2.HCl			≥95%

HO017017	COOH-PEG-COOH			≥95%

HE017021	COOH-PEG-EPO			≥95%

HE017019	COOH-PEG-HZ			≥95%

HE017011	COOH-PEG-MA			≥95%

HE017255	COOH-PEG-N+Me3			≥95%

HE017184	COOH-PEG-PLA(10K)			≥95%

HE017028	COOH-PEG-SS			≥95%

HE017272	COOH-PEG-SS-PEG-COOH			≥95%

HE017166	COOH-PEG-Tretinoin			≥95%

HE003121	SH-PEG-AA			≥95%

HE003017	SH-PEG-COOH			≥95%

HE023017	NHS-PEG-COOH			≥95%

LP096017	DSPE-PEG-COOH			≥95%

LP099017	DLPE-PEG-COOH			≥95%

LP097017	DMPE-PEG-COOH			≥95%

LP100121	DOPE-PEG-CH2COOH			≥95%

LP098017	DPPE-PEG-COOH			≥95%

HE022017	Mal-PEG-COOH			≥95%

HO121121	AA-PEG-AA			≥95%

HE010017	ACA-PEG-COOH			≥95%

HE010013	ACA-PEG-SA			≥95%

HE194017	Acetylthio-PEG-COOH			≥95%

HE009017	AC-PEG-COOH			≥95%

HE007017	AlKyne-PEG-COOH			≥95%

HE041017	Biotin-PEG-COOH			≥95%

NE12454	Boc-NH-C6-amido-C4-acid		344.45	≥95%

HE068017	Boc-NH-PEG-COOH			≥95%

HO016016	CH2CH2COOH-PEG-CH2CH2COOH			≥95%

LP095017	CLS-PEG-COOH			≥95%

LP095013	CLS-PEG-SA			≥95%

FL077017	Cy3.5-PEG-COOH			≥95%

FL167017	Cy3-PEG-COOH			≥95%

FL078017	Cy5-PEG-COOH			≥95%

FL296121	Cy7.5-PEG-AA			≥95%

HE048017	DBCO-PEG-COOH			≥95%

FL044017	FITC-PEG-COOH			≥95%

HE069017	Fmoc-NH-PEG-COOH			≥95%

HE057017	FA-PEG-COOH

HO014014	GAA-PEG-GAA			≥95%

HO012012	GA-PEG-GA			≥95%

HE018017	IA-PEG-COOH			≥95%

HE249017	I-PEG-COOH			≥95%

HE039017	LA-PEG-COOH			≥95%

HE279017	NB-PEG-COOH			≥95%

HE173017	NO2-Bn-PEG-COOH			≥95%

HE035017	OPSS-PEG-COOH			≥95%

LP226017	Palmitic acid-PEG-COOH			≥95%

HE059017	PCL(2K)-PEG-COOH			≥95%

HE174017	PDLLA(5K)-PEG-COOH			≥95%

HE063017	PLA(2K)-PEG-COOH			≥95%

HE083017	PLGA(1.8K)-PEG-COOH			≥95%

HE089017	PLGA(15K)-PEG-COOH			≥95%

HE311017	PLGA(17K)-PEG-COOH			≥95%

HE082017	PLGA(1K)-PEG-COOH			≥95%

HE084017	PLGA(2K)-PEG-COOH			≥95%

HE156017	PLGA(40K)-PEG-COOH			≥95%

HE085017	PLGA(5K)-PEG-COOH			≥95%

HE086017	PLGA(8K)-PEG-COOH			≥95%

FL045017	RB-PEG-COOH			≥95%

HO015015	SAA-PEG-SAA			≥95%

HO013013	SA-PEG-SA			≥95%

HE024017	SCM-PEG-COOH			≥95%

HE023213	SC-PEG-MTA			≥95%

HE027017	SG-PEG-COOH			≥95%

HE020017	Silane-PEG-COOH			≥95%

LP101017	STA-PEG-COOH			≥95%

HE179017	Phosphoric acid-PEG-COOH			≥95%

HE017221	Monoethoxylsilane-PEG-COOH			≥95%

HE262017	c(RGDyK)-PEG-COOH			≥95%

HE168017	C18-PEG-COOH			≥95%

LP287017	DSPE(Sodium salt)-PEG-COOH			≥95%

HO358358	VA-PEG-VA			≥95%

HE002012	OH-PEG-GA			≥95%

HE008017	Alkene-PEG-COOH			≥95%

HE003016	SH-PEG-PA			≥95%

MF001360	mPEG-SS-COOH			≥95%

HE188121	Bn-PEG-CH2COOH			≥95%