维生素B

Identification Name Pyridoxine Synonyms Vitamin B6; 2-Methyl-3-hydroxy-4,5-dihydroxymethylpyridine Molecular Formula C8H11NO3 Molecular Weight 169.18 CAS Registry Number 65-23-6 EINECS 200-603-0 Properties Melting point 159-162 ºC This product is white or kind of white crystal powder, odorless. It can easly dissolve in oil, slightly dissolve in ethanol by hot and cant dissolve in water. one kind of cosmetic functional additives. It can cure and prevent various skin roughness, acne and sunburn, it is also fit for seborrheic trichomadesis, skin inflammation, general acne and seborrheic eczema.This product is much stability and can be added into cream, emulsion and nutrient shampoo. It also can be used with other vitamins . TEST ITEMS SPECIFICATIONS TEST RESULTS Appearance A white or almost white crystalline powder Conforms Identification Positive Positive Melting point About 205.0oC 208.0 ~ 208.3oC Clarity & color of solution Clear, ≤Y7 Clear, ≤Y7 PH 2.4 ~ 3.0 2.66 Loss on drying ≤ 0.50% 0.02% Residue on ignition ≤ 0.10% 0.01% Heavy metals ≤ 20ppm <20ppm Related substance ≤0.25% Conforms Organic Volatile impurities Meet the requirements Meet the requirements Chloride content 16.9 ~ 17.6% 17.2% Residual solvent (Ethanol) ≤0.5% <0.02% Assay( on dried basis) 99.0 ~ 101.0% 99.7%