Mal-PEG5-t-butyl ester - ≥98% , CAS No.2250216-91-0

CAS: 2250216-91-0 Cat. No.: M596867 Molecular Weight: 445.5
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
Application
227,228,229
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
M596867-250mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$1,491.90
500mg
M596867-500mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$2,205.90
1g
M596867-1g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$3,276.90
Enter a quantity for the sizes you want to add.
🧪

Why this grade

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

🌡

Storage & shipping

Store at -20°C 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-PEG5-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

Specifications & Purity
≥98%
Storage
Store at -20°C
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
Molecular Weight 445.5

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

Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:
Chemical and Physical Properties
SolubilitySolubility in DCM
Solution Calculators
Reviews

Customer Reviews

Shall we send you a message when we have discounts available?

Remind me later

Thank you! Please check your email inbox to confirm.

Oops! Notifications are disabled.