Non‐terpenoidal Constituents of Azadirachta indica Root Bark

: A new steroid named as margocidin (1) has been isolated from the neutral fraction of the methylene chloride extract of neem roots along with the known 3~-hydroxy stigmast-5-en-7-one (2) and ferula aldehyde (3) hitherto unreported from any of the various parts of neem tree. The structures of these compounds have been determined through chemical and spectroscopic methods. The fatty acid components of petrol soluble fraction were also identified t.hrough GC-MS.