Molecular Formula: C₇H₅NaO₂
Molecular Weight: 144.10
CAS Number: 532-32-1
EINECS: 208-534-8
Appearance: white crystal powder or particle with styrax benzoin smell
Purity (Calculate in C₆H₅COONa on dry): 99.5% min
Drying loss: 1.5% max
Chloride: 0.020% max
Chlorinated compounds: 0.030% max
Heavy Metal:  0.001% max
Arsenic: 0.0002% max
Sulfate: 0.1% max
Melting state: Conform with stipulations
Alkalinity acidity: Conform with stipulations