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Bis-PEG3-NHS ester - ≥98% , CAS No.1314378-16-9
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
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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
Bis-PEG3-NHS ester is a PEG derivative containing two NHS ester groups. The hydrophilic PEG spacer increases solubility in aqueous media. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.
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
| Canonical Smiles | C1CC(=O)N(C1=O)OC(=O)CCOCCOCCOCCC(=O)ON2C(=O)CCC2=O |
|---|---|
| IUPAC Name | (2,5-dioxopyrrolidin-1-yl) 3-[2-[2-[3-(2,5-dioxopyrrolidin-1-yl)oxy-3-oxopropoxy]ethoxy]ethoxy]propanoate |
| InChIKey | OPGNUERFYQLUNP-UHFFFAOYSA-N |
| INCHI | 1S/C18H24N2O11/c21-13-1-2-14(22)19(13)30-17(25)5-7-27-9-11-29-12-10-28-8-6-18(26)31-20-15(23)3-4-16(20)24/h1-12H2 |
| Isomeric SMILES | C1CC(=O)N(C1=O)OC(=O)CCOCCOCCOCCC(=O)ON2C(=O)CCC2=O |
| Molecular Weight | 444.4 |
| Reaxy-Rn | 29615731 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=29615731&ln= |
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:
Chemical and Physical Properties
| Molecular Weight | 444.400 g/mol |
|---|---|
| XLogP3 | -2.300 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 11 |
| Rotatable Bond Count | 16 |
| Exact Mass | 444.138 Da |
| Monoisotopic Mass | 444.138 Da |
| Topological Polar Surface Area | 155.000 Ų |
| Heavy Atom Count | 31 |
| Formal Charge | 0 |
| Complexity | 619.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 1 |
Solution Calculators
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