CAS Registry Number

CAS 51805-45-9 — Tris-(2-carboxyethyl)phosphine hydrochloride (TCEP)

Tris-(2-carboxyethyl)phosphine hydrochloride (TCEP) is a water-soluble reducing agent widely used in biochemical research to cleave disulfide bonds in proteins, stabilize thiols, and prevent oxidation. It is also applied in peptide synthesis and as a reducing agent in electrophoretic mobility shift assays. TCEP has a CAS number of 51805-45-9, with the molecular formula C9H15O6P·HCl and a molecular weight of 286.65. It must be stored between 2 to 8°C and carries a **Danger** signal word due to its hazardous properties. Molekula supplies TCEP from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Also known as: 3-[bis(2-carboxyethyl)phosphanyl]propanoic acid;hydrochloride · 3,3',3''-Phosphinetriyltripropanoic acid hydrochloride · C9H16ClO6P · Propanoic acid, 3,3',3''-phosphinylidynetris-, hydrochloride (1:1) · TCEP HCl · TCEP Hydrochloride · TCEP Hydrochloride (0.5M in water) · Tris(2-carboxyethyl)phosphine hydrochloride · Tris(2-carboxyethyl)phosphine, HCl · Tris(carboxyethyl)phosphine hydrochloride · Tris-(2-carboxyethyl)phosphine hydrochloride (TCEP) - Molecular biology grade · Thermo Scientific™ Pierce™ Premium Grade TCEP-HCl CAT: 15235773