| Widely distributed in nature as a B complex factor. Bakers yeast contains 5 to 6 ppm, brewers yeast from 10 to 100 ppm. Occurs free and in ester form. Synonyms: Vitamin B10, p-Aminobenzoic Acid, Bacterial Vitamin H1, p-Carboxyaniline, p-Carboxyphenylamine, Actipol, Amben, PABA, Pabacyd, Pabafilm, Trichochromogenic Factor, Vitamin BX, Vitamin H CAS No: 150-13-0 Molecular Formula: C7H7NO2 Molecular Weight: 137.14 Purity: 99% Appearance: White to off-white powder Melting Point: 186-189C Loss on Drying: 0.2% Residue on Ignition: 0.1% Heavy Metals: 0.002% Volatile Diazotizable Substitutes (as p-Toluidine): 0.002% Identification: To pass test Storage and Stability: May be stored at 4C. For long-term storage, aliquot and store at 4C. Do not freeze. Aliquots are stable for 12 months after receipt. |
