Description features:Allantion Product Name: Allantoin Synonyms: 5-Ureidohydantoin; Allantoin, 98%; Allantion; allantoin powder; (2,5-Dioxo-4-imidazo-lidinyl)urea; Allantoin (5-Ureidohydantoin) Structural formula: C4H6N4O3 Formula Weight:158.12 CAS Registry Number: [ 97-59-6 ] Property : Achromatous or white rime;soluble in hot water , hot alcohol and sodium hydroxide solution; almost insoluble in chloroform and aether. Specifications: ITEM PREMIUM GRADE FIRST GRADE Description White crystal powder White crystal powder Assay % 100~101.5Min 99.0~101.5 Min Heavy metal ppm 1Max 10Max Cl-(Chloride)% 0.01Max 0.05Max SO42-ppm 1Max 10Max Ashes% 0.1Max 0.1Max Loss on drying% 0.1Max 0.5Max pH 5~6 5~6 Packaging 25kg/cardboard drum 25kg/cardboard drum Function and use: (1) Allantoin can promote the skin cell regeneration and quickly make the wound to heal up . Therefore , it € used to treat skin ulcers , wound , scald , burn and acne etc. (2) Allantoin can also keep the moisture of skin , make rough and cracked skin becoming smooth and supple . Otherwise , it has the following function: killing bacterias ,avioiding ultraviolet-ray, eliminating odour, thus,it is widely used in cosmetics industry as additive. (3) Allantoin is used in the field of agriculture . It has the following function : increasing the yield of crops;quicken the crop and fruits as ripeetc. Packaging: 25 kg /cardboard dru