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Polyethylene Glycol (PEGs & PEOs)
N-(Propargyl-PEG4-carbonyl)-N-bis(PEG1-methyl ester) - ≥95% , CAS No.2112732-01-9

N-(Propargyl-PEG4-carbonyl)-N-bis(PEG1-methyl ester) - ≥95% , CAS No.2112732-01-9

CAS: 2112732-01-9 Cat. No.: N596312 Molecular Weight: 519.58

COA

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N-(Propargyl-PEG4-carbonyl)-N-bis(PEG1-methyl ester) - ≥95% CAS No(2112732-01-9) by Aladdin Scientific

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AVAILABLE TO ORDER

GRADE & PURITY ≥95%

Synonyms

C70636 | methyl 3-(2-{N-[2-(3-methoxy-3-oxopropoxy)ethyl]-4,7,10,13-tetraoxahexadec-15-ynamido}ethoxy)propanoate | HY-140095 | 2112732-01-9 | DTXSID001110321 | BP-23587 | MS-29636 | 4,11,14,17,20-Pentaoxa-7-azatricos-22-ynoic acid, 7-[2-(3-methoxy-3-oxopr

Storage

Store at -20°C,Argon charged

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

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Why this grade

≥95% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at -20°C,Argon charged 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.

📚

Literature proof

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

Overview

N-(Propargyl-PEG4-carbonyl)-N-bis(PEG1-methyl ester) is a branched PEG derivative with a terminal propargyl group and two methyl esters. The propargyl group can be reacted with azide-bearing compounds or biomolecules via copper catalyzed azide-alkyne Click Chemistry to yield a stable triazole linkage. The methyl ester groups can be hydrolyzed, reduced, or substituted under specific conditions.

Specifications

Synonyms

C70636 | methyl 3-(2-{N-[2-(3-methoxy-3-oxopropoxy)ethyl]-4, 7, 10, 13-tetraoxahexadec-15-ynamido}ethoxy)propanoate | HY-140095 | 2112732-01-9 | DTXSID001110321 | BP-23587 | MS-29636 | 4, 11, 14, 17, 20-Pentaoxa-7-azatricos-22-ynoic acid, 7-[2-(3-methoxy-3-oxopr

Specifications & Purity

≥95%

Storage

Store at -20°C, Argon charged

Shipped In

Ice chest + Ice pads

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

Purity

≥95%

Names and Identifiers

Canonical Smiles	COC(=O)CCOCCN(CCOCCC(=O)OC)C(=O)CCOCCOCCOCCOCC#C
IUPAC Name	methyl 3-[2-[2-(3-methoxy-3-oxopropoxy)ethyl-[3-[2-[2-(2-prop-2-ynoxyethoxy)ethoxy]ethoxy]propanoyl]amino]ethoxy]propanoate
InChIKey	JCIALVYXFZVDJH-UHFFFAOYSA-N
INCHI	1S/C24H41NO11/c1-4-10-31-16-18-35-20-21-36-19-17-34-11-5-22(26)25(8-14-32-12-6-23(27)29-2)9-15-33-13-7-24(28)30-3/h1H,5-21H2,2-3H3
Isomeric SMILES	COC(=O)CCOCCN(CCOCCC(=O)OC)C(=O)CCOCCOCCOCCOCC#C
Alternate CAS	2112732-01-9
Molecular Weight	519.58

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 Dicarboxylic acids and derivatives

Kingdom	Organic compounds
Superclass	Organic acids and derivatives
Class	Carboxylic acids and derivatives
Subclass	Dicarboxylic acids and derivatives
Intermediate Tree Nodes	Not available
Direct Parent	Dicarboxylic acids and derivatives
Alternative Parents	Tertiary carboxylic acid amides Methyl esters Haloacetylenes and derivatives Dialkyl ethers Acetylides Organopnictogen compounds Organonitrogen compounds Organic oxides Hydrocarbon derivatives
Molecular Framework	Aliphatic acyclic compounds
Substituents	Dicarboxylic acid or derivatives - Methyl ester - Tertiary carboxylic acid amide - Carboxylic acid ester - Carboxamide group - Haloacetylene or derivatives - Acetylide - Ether - Dialkyl ether - Organic nitrogen compound - Organic oxygen compound - Organopnictogen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Organonitrogen compound - Aliphatic acyclic compound
Description	This compound belongs to the class of organic compounds known as dicarboxylic acids and derivatives. These are organic compounds containing exactly two carboxylic acid groups.
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:

Find and download the COA for your product by matching the lot number on the packaging.

3 results found

Lot Number	Certificate Type	Date	Item
I2524570	Certificate of Analysis	Jul 23, 2025	N596312
I2524571	Certificate of Analysis	Jul 23, 2025	N596312
I2524572	Certificate of Analysis	Jul 23, 2025	N596312

Chemical and Physical Properties

Molecular Weight	519.600 g/mol
XLogP3	-1.500
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	11
Rotatable Bond Count	27
Exact Mass	519.268 Da
Monoisotopic Mass	519.268 Da
Topological Polar Surface Area	128.000 Å²
Heavy Atom Count	36
Formal Charge	0
Complexity	594.000
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

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Reviews

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