11.beta.,17,21-Trihydroxypregna-1,4-diene-3,20-dione 21-[4-[p-[bis(2-chloroethyl)amino]phenyl]butyrate] 29069-24-7 Leo 1031 NSC134087 Prednimustine Pregna-1,4-diene-3,20-dione, 11,17,21-trihydroxy-, 21-[4-[p-bis(2-chloroethyl)amino]phenyl]butyrate Pregna-1,4-diene-3,20-dione, 11.beta.,17,21-trihydroxy-, 21-[4-[p-[bis(2-chloroethyl)amino]phenyl]butyrate] Pregna-1,4-diene-3,20-dione, 21-[4-[4-[bis(2-chloroethyl)amino]phenyl]-1-oxobutoxy]-11,17-dihydroxy-, (11.beta.)- Sterecyt WLN: L E5 B666 OV AHTTT&J A1 CQ E1 FV1OV3R DN2G2G& FQ