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Maleimide PEG, mPEG-MAL - MW 550 Da
AVAILABLE TO ORDER
GRADE & PURITY MW 550 Da
Storage
Store at -20°C,Argon charged
Shipped In
Ice chest + Ice pads
224,000+ research products · Triple ISO certified · COA & SDS available for every product · Same-day shipping on in-stock items
Why this grade
MW 550 Da 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
Maleimide functionalized polyethylene glycol, Maleimide PEG is a sulfhydryl (thiol/SH) group reactive PEG derivative that can be used to selectively modify protein, peptide or any other surfaces with availablesulfhydryl groups. The reaction between maleimide and thiol proceeds readily at pH 6.5~7.5 to form stable thioether bonds.
Specifications
Specifications & Purity
MW 550 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 →🔬 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.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
 B2310683 | Certificate of Analysis | Jun 11, 2026 | M163929 |
| B2310759 | Certificate of Analysis | Jun 11, 2026 | M163929 |
| L2108058 | Certificate of Analysis | May 11, 2026 | M163929 |
| L2108062 | Certificate of Analysis | May 11, 2026 | M163929 |
Chemical and Physical Properties
| Solubility | Off-white/white solid or viscous liquid depends on molecule weight;Soluble in regular aqeous solution as well as most organic solvents; |
|---|
Documents & Articles
Solution Calculators
Reviews
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