Sodium 3-oxo-3H-phenoxazin-7-olate (CAS 34994-50-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C12H6NO3 Na. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
Molecular Formula
C12H6NO3 Na
Molecular Weight
235.17 g/mol
Appearance
Pale yellow to yellow crystalline powder
Purity
97%+
Storage
Store at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)
Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
Stability
May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening