... ;99%(CP2005) appearance: white or light yellow powder CAS.NO: 50-55-5 Molecular Formula: C33H40N2OReserpinespecification ;99 ... 18beta,20alpha)-methyleste;,methylester,(3beta,16beta,17alpha,18beta,20alpha)-CAS: MF:C33H40N2O9MW:608.68EINECS:200-047-9Product Categories ... Stable, but darkens slowly in light. Combustible. Incompatible with strong acids, reducing agents, oxidizing agents.NIST Chemistry ...