也称毕枯枯灵，别名右旋荷包牡丹碱。从紫菫属植物中分离纯化，GABA　A受体竞争性拮抗剂，是研究GABA能突触传递的重要工具。

Bicuculline :（6R）-6-[ (5S) - 5,6,7,8 – Tetrahydro – 6 – methyl - 1,3 - dioxolo[4,5 – g ]isoquinolin – 5 – yl ]furo[3,4-e] - 1,3 – benzodioxol – 8 (6H) - one.

CAS Number 485-49-4
Molecular Weight: 367.35
Molecular Formula: C₂₀H₁₇N_O6
Occurrence: found in Dicentra cucullaria (L.) Bernh., Adlumia fungosa (Ait.) Greene, Fumariaceae, and several Corydalis species.
Appearance: elongated plates from chloroform-menthanol or pale yellow crystalline powder
Solubility: soluble in benzene, chloroform, ethyl acetate. Sparingly soluble in alcohol and ether.
Purity： >98% , HPLC
Structure: