(-)-BICUCULLINE METHBROMIDE

Modify Date: 2025-08-25 16:57:13

(-)-BICUCULLINE METHBROMIDE Structure
(-)-BICUCULLINE METHBROMIDE structure
Common Name (-)-BICUCULLINE METHBROMIDE
CAS Number 66016-70-4 Molecular Weight 462.29100
Density N/A Boiling Point N/A
Molecular Formula C21H20BrNO6 Melting Point N/A
MSDS Chinese USA Flash Point N/A
Symbol GHS06 GHS09
GHS06, GHS09
Signal Word Danger

 Use of (-)-BICUCULLINE METHBROMIDE


Bicuculline methobromide is a selective GABAA receptor antagonist with an IC50 value of 3 μM. Bicuculline methobromide induces clonic tonic convulsions in mammals and can also be used to block Ca2+ activated potassium channels. Bicuculline methobromide can be used in studies of epilepsy and other related psychiatric disorders[1][2].

 Names

Name (6R)-6-[(5S)-6,6-dimethyl-7,8-dihydro-5H-[1,3]dioxolo[4,5-g]isoquinolin-6-ium-5-yl]-6H-furo[3,4-g][1,3]benzodioxol-8-one,bromide
Synonym More Synonyms

 (-)-BICUCULLINE METHBROMIDE Biological Activity

Description Bicuculline methobromide is a selective GABAA receptor antagonist with an IC50 value of 3 μM. Bicuculline methobromide induces clonic tonic convulsions in mammals and can also be used to block Ca2+ activated potassium channels. Bicuculline methobromide can be used in studies of epilepsy and other related psychiatric disorders[1][2].
Related Catalog
In Vitro Bicuculline methobromide (1 μM and 3 μM) attains the maximal response of GABA. Bicuculline methobromide appears to shift the dose–response curves of GABA in parallel to the right without decreasing GABA maximal response, suggesting that it is a competitive antagonist at human α1β2γ2L GABAA receptors expressed in Xenopus oocytes[3]. Bicuculline methobromide (1-100 μM; 2 min; applied as outside-out patches) potently blocks both Apamin (HY-P0256)-sensitive small-conductance calcium-activated potassium channels (SK2) currents and Apamin-insensitive SK1 currents in Xenopus oocytes[4].
In Vivo Bicuculline methobromide (subcutaneous injection, 1.25-3 mg/kg) can cause clonus-tonic convulsions in a dose-dependent manner in mice and these convulsions are enhanced by injection of the μ-opioid agonist morphine[1]. Bicuculline methobromide (subcutaneous injection, 1.5-3.2 mg/kg) induces male Swiss S mice generalized seizures with a CD50 (convulsant dose) of 2.2 mg/kg for clonus and CD50 of 2.4 mg/kg for tonus. Seizures induced by Bicuculline at the dose of 3.2 mg/kg can be blocked by pretreatment (i.p.) with the NMDA antagonists MK-801, CPP and CGS 19755[2].
References

[1]. Y Yajima, et al. Effects of differential modulation of mu-, delta- and kappa-opioid systems on bicuculline-induced convulsions in the mouse. Brain Res. 2000 Apr 17;862(1-2):120-6.  

[2]. W A Turski, et al. Excitatory amino acid antagonists protect mice against seizures induced by bicuculline. Brain Res. 1990 Apr 23;514(1):131-4.  

[3]. Huang SH, et al. Bilobalide, a sesquiterpene trilactone from Ginkgo biloba, is an antagonist at recombinant alpha1beta2gamma2L GABA(A) receptors. Eur J Pharmacol. 2003;464(1):1-8.  

[4]. Khawaled R, et al. Bicuculline block of small-conductance calcium-activated potassium channels. Pflugers Arch. 1999 Aug;438(3):314-21.  

 Chemical & Physical Properties

Molecular Formula C21H20BrNO6
Molecular Weight 462.29100
Exact Mass 461.04700
PSA 63.22000
InChIKey BWXCECYGGMGBHD-GRTNUQQKSA-M
SMILES C[N+]1(C)CCc2cc3c(cc2C1C1OC(=O)c2c1ccc1c2OCO1)OCO3.[Br-]

 Safety Information

Symbol GHS06 GHS09
GHS06, GHS09
Signal Word Danger
Hazard Statements H300-H311 + H331-H410
Precautionary Statements P261-P264-P273-P280-P301 + P310-P311
Personal Protective Equipment Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Safety Phrases 24/25
RIDADR UN 1544 6.1/PG 2

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 Synonyms

(-)-Bicuculline methbromide,1(S),9(R)
(-)-Bicuculine Methbromide
Bicuculline methobromide
(-)-Bicuculline Methbromide
HMS2234F21
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