AVAILABLE TO ORDER
GRADE & PURITY MW 20000 Da
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
M163879-100mg
1
$167.90
500mg
M163879-500mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$588.90
Enter a quantity for the sizes you want to add.

Overview

Maleimide PEG acid (Maleimide-PEG-COOH) is a thiol reactive heterobifunctional PEG derivative. Maleimide groups react with sulfhydryl groups at pH 6.5~7.5 at room temperature to form stable thioether bonds, while carboxylic acid groups on the other end can react with amine and acid amine reactive molecues.

Specifications

Specifications & Purity
MW 20000 Da
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.

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.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

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 NumberCertificate TypeDateItem
K2328226Certificate of AnalysisJun 11, 2026 M163879
K2328227Certificate of AnalysisApr 07, 2026 M163879
K2328228Certificate of AnalysisApr 07, 2026 M163879
Chemical and Physical Properties
SolubilityOff-white/white solid or viscous liquid depends on molecule weight;Soluble in regular aqeous solution as well as most organic solvents;
SensitivityMoisture sensitive
Documents & Articles
Solution Calculators
Reviews

Customer Reviews

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