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Polyethylene Glycol (PEGs & PEOs)
m-PEG5-CH2COOH - ≥98% , CAS No.16024-66-1

m-PEG5-CH2COOH - ≥98% , CAS No.16024-66-1

CAS: 16024-66-1 Cat. No.: M596798 Molecular Weight: 266.3 PubChem CID: 85242

COA

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AVAILABLE TO ORDER

GRADE & PURITY ≥98%

Synonyms

Storage

Store at -20°C

Shipped In

Ice chest + Ice pads

Application

227,228,229

Overview Specifications Names and Identifiers Documentation Advanced Data Taxonomic Classification 3D Structure Certificates（CoA,COO,BSE/TSE and Analysis Chart) Chemical and Physical Properties Solution Calculators Reviews

🧪

Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at -20°C Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

m-PEG5-CH2COOH is a PEG derivative containing a terminal carboxylic acid. The terminal carboxylic acid can be reacted with primary amine groups in the presence of activators (e.g. EDC, or DCC) to form a stable amide bond. The hydrophilic PEG spacer increases solubility in aqueous media.

Specifications

Synonyms

Specifications & Purity

≥98%

Storage

Store at -20°C

Shipped In

Ice chest + Ice pads

This product requires cold chain shipping. Ground and other economy services are not available.

Purity

≥98%

Names and Identifiers

Canonical Smiles	COCCOCCOCCOCCOCC(=O)O
IUPAC Name	2-[2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethoxy]acetic acid
InChIKey	DDTZAHIJJCRGFT-UHFFFAOYSA-N
INCHI	1S/C11H22O7/c1-14-2-3-15-4-5-16-6-7-17-8-9-18-10-11(12)13/h2-10H2,1H3,(H,12,13)
Isomeric SMILES	COCCOCCOCCOCCOCC(=O)O
PubChem CID	85242
Molecular Weight	266.3

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

Kingdom Organic compounds
- Superclass Organic acids and derivatives
  - Class Carboxylic acids and derivatives
    - Subclass Carboxylic acids

Kingdom	Organic compounds
Superclass	Organic acids and derivatives
Class	Carboxylic acids and derivatives
Subclass	Carboxylic acids
Intermediate Tree Nodes	Not available
Direct Parent	Carboxylic acids
Alternative Parents	Monocarboxylic acids and derivatives Dialkyl ethers Organic oxides Hydrocarbon derivatives Carbonyl compounds
Molecular Framework	Aliphatic acyclic compounds
Substituents	Monocarboxylic acid or derivatives - Ether - Dialkyl ether - Carboxylic acid - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Carbonyl group - Aliphatic acyclic compound
Description	This compound belongs to the class of organic compounds known as carboxylic acids. These are compounds containing a carboxylic acid group with the formula -C(=O)OH.
External Descriptors	Not available
1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61. DOI: 10.1186/s13321-016-0174-y

3D Structure

Certificates（CoA,COO,BSE/TSE and Analysis Chart)

C of A & Other Certificates(BSE/TSE, COO):

Analytical Chart:

Chemical and Physical Properties

Molecular Weight	266.290 g/mol
XLogP3	-0.900
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	7
Rotatable Bond Count	14
Exact Mass	266.137 Da
Monoisotopic Mass	266.137 Da
Topological Polar Surface Area	83.500 Å²
Heavy Atom Count	18
Formal Charge	0
Complexity	186.000
Isotope Atom Count	0
Defined Atom Stereocenter Count	0
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
The total count of all stereochemical bonds	0
Covalently-Bonded Unit Count	1

Solution Calculators

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Reviews

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