CAS 61574-54-7 appears in our catalog under these names: Pregnenolone-d4, >95% (HPLC), Pregnenolone-17alpha,21,21,21-d4, 98 atom % D, min 98% Chemical Purity, Pregnenolone–d4–1, Pregnenolone-d4, Pregnenolone-d4-1, 99.34%. Offered by: TRC, CDN, GLPBio, Biosynth, MedChemExpress. Available pack sizes: 100mg, 10mg, 50mg, 0,05g, 0,01g, 1mg, 5mg, 25mg.