CAS Registry Number

CAS 70331-82-7 — TES Sodium salt

TES Sodium salt (Tris(2-sulfoethyl)phosphine sodium salt) is a water-soluble, odorless reducing agent widely used in protein chemistry, bioconjugation, and peptide synthesis for its mild reduction of disulfide bonds without degrading sensitive functional groups. It is also employed in the stabilization of proteins and antibodies during formulation. This chemical has a CAS number of 70331-82-7, with the molecular formula C6H14NO6NaS and a molecular weight of 251.23. It is stored at ambient conditions and carries no signal word for hazard classification. Molekula supplies TES Sodium salt from research to bulk quantities with full documentation and ISO 9001:2015 traceability.