O-(2-Mercaptoethyl)-O′-methyl-hexa(ethylene glycol) , 95% , 651042-82-9

Synonym(s):
Methoxy PEG thiol;Methoxypolyethylene glycol thiol;mPEG thiol;PEG thiol

CAS NO.：651042-82-9

Empirical Formula: C15H32O7S

Molecular Weight: 356.48

MDL number: MFCD08274612

PRODUCT Properties

• Melting point: 50-55 °C
• Boiling point: 423.7±45.0 °C(Predicted)
• Density: 1.065
• Flash point: >230 °C
• storage temp.: -20°C
• solubility: DMSO : 100 mg/mL (280.52 mM; Need ultrasonic)
• pka: 9?+-.0.10(Predicted)
• form: Liquid
• color: Colorless to light yellow
• α-end: methoxy
• Ω-end: thiol
• InChI: InChI=1S/C15H32O7S/c1-16-2-3-17-4-5-18-6-7-19-8-9-20-10-11-21-12-13-22-14-15-23/h23H,2-15H2,1H3
• InChIKey: PVSKDHZQTUFAEZ-UHFFFAOYSA-N
• SMILES: COCCOCCOCCOCCOCCOCCOCCS

Description and Uses

m-PEG7-thiol is a PEG linker containing a thiol group. The thiol group reacts with maleimide, OPSS, vinylsulfone and transition metal surfaces including gold, silver, etc. The hydrophilic PEG spacer increases solubility in aqueous media.

Applications may include: bioconjugation, drug delivery, PEG hydrogel, crosslinker, and surface functionalization

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319-H335
• Precautionary statements: P261-P264-P271-P280-P302+P352-P305+P351+P338
• PPE: Eyeshields, Gloves, type N95 (US)
• Hazard Codes: Xi
• Risk Statements: 36/37/38
• Safety Statements: 26
• WGK Germany: 3
• HS Code: 2930909899
• Storage Class: 10 - Combustible liquids