• Vitamin B7, Biotin, Vitamin H, 1%, 2%, 99%, pharmaceutical grade, food grade in bulk supply,CAS.: 58-85-5,MF:C10H16N2O3S

Vitamin B7, Biotin, Vitamin H, 1%, 2%, 99%, pharmaceutical grade, food grade in bulk supply,CAS.: 58-85-5,MF:C10H16N2O3S

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