Product Name: 4‑Aminobenzoic Acid Alias: PABA Appearance: Off‑white to light beige crystalline powder Purity: Min 99.0 percent Melting point: 186 to 189 centigrade Loss on drying: Max 0.5 percent Residue on ignition: Max 0.2 percent Heavy metal: Compliant with cosmetic raw material requirements Packaging: 25kg drum, sample package available Storage: Keep sealed, store in cool dry dark place, avoid light exposure Shelf life: 24 months under appropriate storage environment