- Synonyms: Piruvic acid, sodium salt - C3H3NaO3 - M = 110,05 g/mol - CAS [113-24-6] - EINECS-No.: 204-24-4 - Melting point: 220 - 230 °C - LD 50 (oral, rat): 5600 mg/Kg - Tariff number: 2918 30 00 90 SPECIFICATIONS assay (titration with HClO4): min. 99 % chlorides (Cl): max. 0,002 % sulfates (SO4): max. 0,005 % arsenic (As): max. 1 ppm heavy metals (as Pb): max. 0,001 % loss on drying (105 ºC): max. 0,5 % suitability for microbiology: passes test