TCA Chemical name: chloral hydrate Structure formula: C2H3ClO2 CAS.NO.: 302-17-0 Assay: 99%(min.)Appearance: white crystal powder Chloride: 100ppm(max.) Heavy metal: 20ppm(max.) Roast residue : 100ppm(max.)Solubility: quite soluble in water Appearance of aqueous solution: colorless transparent liquid