Ascorbic Acid (Vitamin C)(Cas No.:50-81-7)

Ascorbic Acid (Vitamin C)(Cas No.:50-81-7)                                            Quick Details CAS No.:50-81-7 Other Names:L(+)-Ascorbic acid MF:C6H8O6 EINECS No.:200-066-2 Place of Origin:Zhentian, China Type:Vitamins, Amino Acids and Coenzymes Grade Standard:Feed Grade, Food Grade, Medicine Grade Usage:Animal Pharmaceuticals Purity:99% Product Name:L(+)-Ascorbic acid Appearance:White powder Sample:Free charge samples can be sent Total Heavy Metals:<10ppm Test Method:HPLC/UV Standard:USP EP JP etc. Bacterial endoloxins:<0.075EU/mg Shelf life:2 years Name: L-Ascorbic acid Synonyms: Vitamin C; L-Threo-2,3,4,5,6-pentahydroxy-1-hexenoic acid-4-lactone Molecular Formula: C6H8O6 Molecular Weight: 176.12 CAS Number: 50-81-7 EINECS: 200-066-2 Packaging & Delivery Packaging Details Drum, Plastic Container, Vacuum Packed for High qualtiy L(+)-Ascorbic acid 50-81-7 Delivery Time 3days After payment for L(+)-Ascorbic acid Specification Item Standard (BP2005/USP31/EP5) Test Result Characteristics White crystals or crystalline powder Meet the Requirement Identification Positive Reaction Meet the Requirement Melting Point 190-192 °C 191.3 °C PH 2.2~2.6 2.49 Clarity of Solution Clear Meet the Requirement Color of Solution ≤BY7 < BY7 Specific Optical Rotation +20.5~+21.5° +21.17° Copper ≤ 5 ppm <5 ppm Heavy metals ≤ 10 ppm <10 ppm Iron ≤ 2 ppm <2 ppm Oxalic Acid ≤ 0.2 % <0.2 % Sulphated Ash ≤ 0.1 % <0.1 % Residue on Ignition ≤0.1 % <0.1% Organic Volatile Impurities Pass USP Test Meet the Requirement Assay 99.0~100.0% 99.95% Loss on drying ≤ 0.4 % <0.4 % Lead ≤2ppm <2ppm Mercury ≤0.1mg/kg <0.1mg/kg Mesh 40~80mesh Pass Arsenic ≤3ppm <3ppm