CAS No.: 330645-87-9 Synonyms: 1-[Bis(dimethylamino)methylen]-5-chlorobenzotriazolium 3-oxide hexafluorophosphate; N , N , N ′, N ′-Tetramethyl- O -(6-chloro-1 H -benzotriazol-1-yl)uronium hexafluorophosphate; HCTU Formula: …