Mal-PEG2-t-butyl ester - ≥98% , CAS No.1374666-31-5

CAS: 1374666-31-5 Cat. No.: M596871 Molecular Weight: 313.35
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
Mal-PEG2-C2-Boc | Mal-PEG2-CH2CH2COOtBu
Storage
Store at -20°C,Argon charged
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
100mg
M596871-100mg
3
$49.90
500mg
M596871-500mg
3
$159.90
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 -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

Mal-PEG2-t-butyl ester is a PEG derivative containing a maleimide group and a t-butyl ester group. The hydrophilic PEG spacer increases solubility in aqueous media. The t-butyl protected carboxyl group can be deprotected under acidic conditions. The maleimide group will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a thiol.

Specifications

Synonyms
Mal-PEG2-C2-Boc | Mal-PEG2-CH2CH2COOtBu
Specifications & Purity
≥98%
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
≥98%
Names and Identifiers
Canonical SmilesCC(C)(C)OC(=O)CCOCCOCCN1C(=O)C=CC1=O
IUPAC Nametert-butyl 3-[2-[2-(2,5-dioxopyrrol-1-yl)ethoxy]ethoxy]propanoate
InChIKeyXWPBPQDTQUEMBX-UHFFFAOYSA-N
INCHI1S/C15H23NO6/c1-15(2,3)22-14(19)6-8-20-10-11-21-9-7-16-12(17)4-5-13(16)18/h4-5H,6-11H2,1-3H3
Isomeric SMILES CC(C)(C)OC(=O)CCOCCOCCN1C(=O)C=CC1=O
Molecular Weight 313.35

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
SuperclassOrganoheterocyclic compounds
ClassPyrrolidines
SubclassPyrrolidones
Intermediate Tree Nodes Not available
Direct ParentMaleimides
Alternative Parents N-substituted carboxylic acid imides  Pyrrolines  Dicarboximides  Carboxylic acid esters  Monocarboxylic acids and derivatives  Dialkyl ethers  Azacyclic compounds  Organonitrogen compounds  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic heteromonocyclic compounds
Substituents Maleimide - Carboxylic acid imide, n-substituted - Carboxylic acid imide - Dicarboximide - Pyrroline - Carboxylic acid ester - Carboxylic acid derivative - Monocarboxylic acid or derivatives - Ether - Dialkyl ether - Azacycle - Organic nitrogen compound - Organooxygen compound - Organonitrogen compound - Carbonyl group - Organic oxygen compound - Hydrocarbon derivative - Organic oxide - Aliphatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as maleimides. These are compounds containing a 2,5-pyrroledione moiety.
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
I2504524Certificate of AnalysisJun 14, 2025 M596871
I2504531Certificate of AnalysisJun 14, 2025 M596871
Chemical and Physical Properties
Molecular Weight313.350 g/mol
XLogP30.000
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count6
Rotatable Bond Count11
Exact Mass313.153 Da
Monoisotopic Mass313.153 Da
Topological Polar Surface Area82.100 Ų
Heavy Atom Count22
Formal Charge0
Complexity420.000
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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