Barbituric acid Cas no.: 67-52-7 Molecular formula c4h4n2o3 Molecular weight 128.09 Purity: 99%min Melting point: 253f+1 centigrade Characteristics: white to off-white crystalline power Loss on drying: 0.5%max Sulphated ash: 0.1%max Packing:25kg/ cardboard drum Synonyms:2, 4, 6(1h, 3h, 5h)-pyrimidinetrione;2, 4, 6-trihydroxy-1, 3-diazine; malonylurea Packing in 25kg bags or drrums