4419-39-0 9-Chloro-11beta,17,21-trihydroxy-16beta-methylpregna-1,4-diene-3,20-dione BMJ 5800 Beclometasona [INN-Spanish] Beclometasone Beclometasonum [INN-Latin] Beclomethasone Becotide EINECS 224-585-9 Pregna-1,4-diene-3,20-dione, 9-chloro-11,17,21-trihydroxy-16-methyl-, (11beta,16beta)-