Amino-PEG3-C2-acid - ≥98% , CAS No.784105-33-5

CAS: 784105-33-5 Cat. No.: A122169 Molecular Weight: 221.25
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
Amino-PEG3-C2-acid | 3-[2-[2-(2-Aminoethoxy)ethoxy]ethoxy]propanoic acid | H2N-PEG3-CH2CH2COOH | alpha-aMine-oMega-propionic acid triethylene glycol
Storage
Store at 2-8°C
Shipped In
Wet ice
Application
Antibody Drug Conjugates(ADC), Drug Delivery, Surface Modification, PEGylation of Protein, Peptide & Oligo
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
A122169-250mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$12.90
1g
A122169-1g
1
$37.90
5g
A122169-5g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$128.90
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

Store at 2-8°C Ships Wet ice 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

Amino-PEG3-C2-acid is a cleavable PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Amino-PEG3-C2-acid is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.

Specifications

Synonyms
Amino-PEG3-C2-acid | 3-[2-[2-(2-Aminoethoxy)ethoxy]ethoxy]propanoic acid | H2N-PEG3-CH2CH2COOH | alpha-aMine-oMega-propionic acid triethylene glycol
Specifications & Purity
≥98%
Storage
Store at 2-8°C
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥98%
Names and Identifiers
Canonical SmilesC(COCCOCCOCCN)C(=O)O
IUPAC Name3-[2-[2-(2-aminoethoxy)ethoxy]ethoxy]propanoic acid
InChIKeyXUQZKSCQPMNDEY-UHFFFAOYSA-N
INCHI1S/C9H19NO5/c10-2-4-14-6-8-15-7-5-13-3-1-9(11)12/h1-8,10H2,(H,11,12)
Isomeric SMILES C(COCCOCCOCCN)C(=O)O
Molecular Weight 221.25
Reaxy-Rn 6390258
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=6390258&ln=

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 acids and derivatives
ClassCarboxylic acids and derivatives
SubclassAmino acids, peptides, and analogues
Intermediate Tree Nodes Amino acids and derivatives
Direct ParentAmino acids
Alternative Parents Monocarboxylic acids and derivatives  Dialkyl ethers  Carboxylic acids  Organic oxides  Monoalkylamines  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic acyclic compounds
Substituents Amino acid - Carboxylic acid - Dialkyl ether - Ether - Monocarboxylic acid or derivatives - Primary amine - Organooxygen compound - Organonitrogen compound - Primary aliphatic amine - Carbonyl group - Amine - Hydrocarbon derivative - Organic nitrogen compound - Organic oxide - Organic oxygen compound - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as amino acids. These are organic compounds that contain at least one carboxyl group and one amino group.
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.

4 results found

Lot NumberCertificate TypeDateItem
L2518112Certificate of AnalysisDec 09, 2025 A122169
L2518113Certificate of AnalysisDec 09, 2025 A122169
L2518114Certificate of AnalysisDec 09, 2025 A122169
D1812135Certificate of AnalysisJun 16, 2025 A122169
Chemical and Physical Properties
SensitivityMoisture sensitive
Boil Point(°C)372.1±32.0 °C at 760 mmHg
Molecular Weight221.250 g/mol
XLogP3-3.900
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count6
Rotatable Bond Count11
Exact Mass221.126 Da
Monoisotopic Mass221.126 Da
Topological Polar Surface Area91.000 Ų
Heavy Atom Count15
Formal Charge0
Complexity153.000
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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