A 1288 (OTTO) Acetonitrile, for HPLC, 99.5%+ Cas 75-05-8 - used mainly as a solvent in the purification of butadiene in refineries. Acetonitrile, for HPLC, 99.5%+ Cas 75-05-8 plays a significant role as the dominant solvent used in the manufacture of DNA oligonucleotides from monomers.