t-butyl ester-PEG5-CH2COOH - ≥98% , CAS No.2304558-22-1

CAS: 2304558-22-1 Cat. No.: T596991 Molecular Weight: 380.40
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
Acid-C1-PEG5-Boc | HOOCCH2O-PEG4-CH2CH2COOtBu | 20,20-Dimethyl-18-oxo-3,6,9,12,15,19-hexaoxahenicosan-1-oic acid
Storage
Protected from light,Store at -20°C,Argon charged
Shipped In
Ice chest + Ice pads
Application
227,228,229
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
50mg
T596991-50mg
3
$145.90
250mg
T596991-250mg
3
$503.90
1g
T596991-1g
2
$1,612.90
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

Protected from light,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

t-butyl ester-PEG5-CH2COOH is a PEG derivative containing a t-butyl protected carboxyl group with a terminal carboxylic acid. The terminal carboxylic acid can be reacted with primary amine groups in the presence of activators (e.g. EDC, or DCC) to form a stable amide bond. The hydrophilic PEG spacer increases solubility in aqueous media. The t-butyl protected carboxyl group can be deprotected under acidic conditions.

Specifications

Synonyms
Acid-C1-PEG5-Boc | HOOCCH2O-PEG4-CH2CH2COOtBu | 20, 20-Dimethyl-18-oxo-3, 6, 9, 12, 15, 19-hexaoxahenicosan-1-oic acid
Specifications & Purity
≥98%
Storage
Protected from light, 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
Molecular Weight 380.40

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:

Find and download the COA for your product by matching the lot number on the packaging.

3 results found

Lot NumberCertificate TypeDateItem
I2508587Certificate of AnalysisJun 18, 2025 T596991
I2508588Certificate of AnalysisJun 18, 2025 T596991
I2518813Certificate of AnalysisJun 18, 2025 T596991
Chemical and Physical Properties
SolubilitySolubility in Water, DMSO, DMF
SensitivityMoisture sensitive;Light sensitive
Solution Calculators
Reviews

Customer Reviews

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