Allantoin 1. Basic Information Product Name Allantoin Molecular Formula: C8H9ClO Molecular Weight: 158.12 CAS No. 97-59-6 EINECS No. 201-793-8 2. Physical Property Allantoin is a non-toxic, odorless, non-irritating, non-allergic white crystalline powder, soluble in hot water, hot alcohol and diluted sodium hydroxide solution, slightly soluble in water and alcohol, insoluble in ether and chloroform. An organic solvent; a saturated aqueous solution (concentration of 0.6%) which is slightly acidic. 3. Technical Specification Item Specification Appearance White Powder Assay 98.5-101.0% Melting Point 225-240 Solubility Slightly soluble in water, Very slightly soluble in alcohol PH 5-6 Sulfate 10ppm Related substances