5,5'-Dithiobis(2-nitrobenzoic acid)

Size

£453.00

SKU:: 270997
Molecular Weight:: 396.35
Purity:: ≥98%
Storage Conditions:: 4°C
Supplier:: United States Biological
CAS Number:: 69-78-3
Format:: Pale yellow to yellow powder
Extra Details:: 3,3'-Dithiobis[6-nitrobenzoic Acid is an membrane-impermeant thiol/disulfide exchange blocker. Also used to quantify the number or concentration of thiol groups in a sample. Ellman′s reagent maybe used for acetylcholinesterase assay, and to specifically label cysteine residues. It is a sensitive reagent for measuring the free sulfhydryl content in proteins, peptides, and tissues. Synonyms: 2,2'-Dinitro-5,5'-dithiodibenzoic Acid; 3,3'-Dithiobis(6-nitrobenzoic Acid); 5,5'-Dithiobis[2-nitrobenzoic Acid]; Ba 2767; DTNB; Ellman’s Reagent CAS Number: 69-78-3 Molecular Weight: 396.35 Molecular Formula: C₁₄H₈N₂O₈S₂ Purity (HPLC, Titration): ≥98% Appearance: Pale yellow to yellow powder Water Content (KF): ≤1% Solubility (1% in Methanol): As reported Melting Point: >214ºC (dec.) Storage and Stability: Store at 4°C under inert atmosphere. Stable for 6 months after receipt.