CAS 110-63-4 also known as 1 4 BDO, 1,4-Butanediol, is a colorlessness liquid with a sweet taste. 1 4 BDO has an organic formula C4H10O2 with an approximate molecular mass of 90.08g/mol. It features a high boiling point as well as highly water-soluble properties, making it an important chemical intermediate.