D-Biotin pure, 1%, 2%, 10%, CAS no.58-85-5, a water-soluble vitamin known as vitamin B7 or vitamin H, appears as a white crystalline powder. It is often used in dietary supplements, baby foods, personal care products, poultry and feed products. Biotin manufacturing process is via fermentation by bacteria. As an experienced D-Biotin manufacturer and supplier, we has been supplying and exporting D-Biotin pure, 1%, 2%, 10% for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day. D-Biotin powder Specification ITEM STANDARD Appearance White or whitelike powder Assay 1.0%, 2.0%, 10.0%, 100.0% Loss on Drying 6.0% Seive Analysis 95% through No. 20 (US) WATER (%) 1.5 TEST METHOD Karl Fisher Heavy metals 10mg/kg Arsenic 2mg/kg Pb 2mg/kg Cadmium 2mg/kg Mercury 2mg/kg