CAS 58-38-8 appears in our catalog under these names: Prochlorperazine, >95% (HPLC), Prochlorperazine, 2-Chloro-10-(3-[1-methyl-4-piperazinyl]propyl)phenothiazine, 95%, 95%, Prochlorperazine-d3. Offered by: TRC, GLPBio, Chemat, Chemat Brand. Available pack sizes: 10mg, 25mg, 50mg, 100mg, 250mg, 500mg, on request.