Acid Orange 11(CI 45370:1) (CAS 4372-02-5) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C20H8Br2O5 2*Na. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
Molecular Formula
C20H8Br2O5 2*Na
Molecular Weight
511.08 g/mol
Appearance
Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity
>95%
Storage
Store at room temperature, protect from light, keep sealed and dry
Solubility (reference)
Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
Stability
May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions