4-Nitrophenyl sulfochloridate (CAS 18997-12-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C6H4ClNO5S. Molecular weight: 237.62 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
Molecular Formula
C6H4ClNO5S
Molecular Weight
237.62 g/mol
Purity
97%+
Storage
Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)
Soluble in methanol, ethanol, DMSO, water
Stability
May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions