R-alpha-Lipoic acid tromethamine salt

R-alpha-Lipoic acid tromethamine salt Identification Name R-alpha-Lipoic acid tromethamine salt Synonyms 2-amino-2-(hydroxymethyl)propane-1,3-diol; 5-(dithiolan-3-yl)pentanoic acid;1,2-Dithiolane-3-valeric acid, compound with 2-amino-2-(hydroxymethyl)propane-1,3-diol (1:1);R(α)Alpha lipoic Acid Tromethamine salt;R-alpha Lipoic acid tromethamine salt; Molecular Formula C8H14O2S2.C4H11NO3;C12H25NO5S2 Molecular Weight 327.46 CAS Registry Number 14358-90-8 EINECS 238-329-9 Properties Boiling Point: 362.5 °C at 760 mmHg Packaging & Delivery Packaging Detail: 25kg/drum or as you request! Delivery Detail 14 days after payment Specifications Name:R-alpha lipoic acid tromethamine salt Molecular Formula: C8H14O2S2.C4H11NO3;C12H25NO5S2 Molecular Weight:327.46 CAS:14358-90-8 EINECS:238-329-9 R-alpha lipoic acid tromethamine salt Analysis ITEMS STANDARD RESULTS Appearance Yellowish crystalline powder Conforms Identification(HPLC) Meets the requirements Conforms Melting point(B.P) 47-50 48.2-50 Residue on ignition ≤0.10% 0.04% Heavy metals ≤10ppm 10ppm Loss on drying ≤0.50% 0.07% Assay ( HPLC ,) 99.0% min 99.47% Specific Optical Rotation +110°- +120° +117.80° Single impurity ≤0.10% undetected 6,8-Epitrithiooctanoic Acid ≤0.10% 0.01% Unknow impurity ≤0.30% 0.01% Total impurities ≤0.50% 0.02% Cyclohexane ≤0.30% 0.07% Residual Solvents(by GC) ≤0.50% 0.07% Microbiology Total Aerobic Counts ≤1000 cfu/g 100 cfu/g Mould & Yeast ≤100 cfu/g 10 cfu/g E.coil Negative Pass Salmonellas Negative Pass Conclusion Confirm to Standard