Azido-PEG5-acid - ≥98% , CAS No.1425973-16-5

CAS: 1425973-16-5 Cat. No.: A595245 Molecular Weight: 335.35
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
Azide-PEG5-COOH | N3-PEG5-COOH | 3-[(14-Azido-3,6,9,12-tetraoxatetradec-1-yl)oxy]propanoic acid | Azido-PEG5-propionic acid
Storage
Protected from light,Store at -20°C,Argon charged
Shipped In
Ice chest + Ice pads
Application
227,228,229
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
A595245-250mg
3
$187.90
1g
A595245-1g
2
$505.90
Enter a quantity for the sizes you want to add.
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Why this grade

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

🌡

Storage & shipping

Protected from light,Store at -20°C,Argon charged Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

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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

Azido-PEG5-acid is a PEG derivative containing an azide group with a terminal carboxylic acid. The hydrophilic PEG spacer increases solubility in aqueous media. The azide group can react with alkyne, BCN, DBCO via Click Chemistry to yield a stable triazole linkage. 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.

Product description

Azido-PEG5-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs, such as the conjugate CPT-APO (CPT: Camptothecin ). Azido-PEG5-acid is a non-cleavable 5 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Azido-PEG5-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

Specifications

Synonyms
Azide-PEG5-COOH | N3-PEG5-COOH | 3-[(14-Azido-3, 6, 9, 12-tetraoxatetradec-1-yl)oxy]propanoic acid | Azido-PEG5-propionic acid
Specifications & Purity
≥98%
Storage
Protected from light, 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
≥98%
Names and Identifiers
Canonical SmilesC(COCCOCCOCCOCCOCCN=[N+]=[N-])C(=O)O
IUPAC Name3-[2-[2-[2-[2-(2-azidoethoxy)ethoxy]ethoxy]ethoxy]ethoxy]propanoic acid
InChIKeyDPJUPQILWDVIKK-UHFFFAOYSA-N
INCHI1S/C13H25N3O7/c14-16-15-2-4-20-6-8-22-10-12-23-11-9-21-7-5-19-3-1-13(17)18/h1-12H2,(H,17,18)
Isomeric SMILES C(COCCOCCOCCOCCOCCN=[N+]=[N-])C(=O)O
Molecular Weight 335.35

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

KingdomOrganic compounds
SuperclassOrganic 1,3-dipolar compounds
ClassAllyl-type 1,3-dipolar organic compounds
SubclassAzo imides
Intermediate Tree Nodes Not available
Direct ParentAzo imides
Alternative Parents Azo compounds  Monocarboxylic acids and derivatives  Dialkyl ethers  Carboxylic acids  Organic zwitterions  Organic salts  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic acyclic compounds
Substituents Azo compound - Azo imide - Carboxylic acid derivative - Carboxylic acid - Dialkyl ether - Ether - Monocarboxylic acid or derivatives - Organonitrogen compound - Carbonyl group - Organic oxygen compound - Organic nitrogen compound - Organooxygen compound - Organic zwitterion - Organic salt - Hydrocarbon derivative - Organic oxide - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as azo imides. These are n-Imides of azo compounds, analogous to azoxy compounds, having a delocalized structure.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





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.

2 results found

Lot NumberCertificate TypeDateItem
H2522178Certificate of AnalysisMay 08, 2025 A595245
I2505538Certificate of AnalysisMay 08, 2025 A595245
Chemical and Physical Properties
SolubilitySolubility in Water
SensitivityLight sensitive;Moisture sensitive
Molecular Weight335.350 g/mol
XLogP3-0.100
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count9
Rotatable Bond Count18
Exact Mass335.169 Da
Monoisotopic Mass335.169 Da
Topological Polar Surface Area97.800 Ų
Heavy Atom Count23
Formal Charge0
Complexity325.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
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