... the production of engineering plastics and fibers. BDO(1,4-butanediol) is a basic chemical and fine ... solvent areas, and the pharmaceutical and cosmetics industries. 1,4 - butanediol can also be used to produce N-methyl ... pyrrolidone (NMP), adipic acid, acetal, maleic anhydride, 1,3 - butadiene and chain accelerator of linear UP. ... (%): 99.5minWater content(%): 0.03maxChromaticity(25°C)(APHA): 0.03max