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B7686

Sigma-Aldrich

1(S),9(R)-(−)-Bicuculline methchloride

≥97% (HPLC), powder

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About This Item

Linear Formula:
C21H20NO6Cl
CAS Number:
38641-83-7
Molecular Weight:
417.84
MDL number:
MFCD00055233
UNSPSC Code:
12352200
PubChem Substance ID:
329773300
NACRES:
NA.77

Quality Level

100

Assay

≥97% (HPLC)

form

powder

solubility

H2O: >10 mg/mL

storage temp.

2-8°C

SMILES string

[Cl-].C[N+]1(C)CCc2cc3OCOc3cc2[C@H]1[C@@H]4OC(=O)c5c6OCOc6ccc45

InChI

1S/C21H20NO6.ClH/c1-22(2)6-5-11-7-15-16(26-9-25-15)8-13(11)18(22)19-12-3-4-14-20(27-10-24-14)17(12)21(23)28-19;/h3-4,7-8,18-19H,5-6,9-10H2,1-2H3;1H/q+1;/p-1/t18-,19+;/m0./s1

InChI key

RLJKFAMYSYWMND-GRTNUQQKSA-M

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Biochem/physiol Actions

1(S),9(R)-(−)-Bicuculline methchloride is a GABAA receptor antagonist, which blocks Ca2+-activated potassium (SK) channels.

Features and Benefits

This compound is a featured product for Neuroscience research. Click here to discover more featured Neuroscience products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.
This compound is featured on the GABAA Receptors and Potassium Channels pages of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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K Gottmann et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 17(8), 2766-2774 (1997-04-15)
Subunit composition of subsynaptic transmitter receptors is controlled presynaptically in the developing neuromuscular junction. To investigate presynaptic regulation of NMDA receptor subunit composition in the CNS, we co-cultured different types of hippocampal explants with dissociated target neurons. Postsynaptic NMDA receptors
C M van Rijn et al.
Journal of receptor and signal transduction research, 15(6), 787-800 (1995-07-01)
Interactions of GABA, bicuculline methochloride and diazepam with [3H]TBOB binding to rat brain membranes were evaluated in vitro. GABA displaced [3H]TBOB binding with and IC50 of 4 microM and a slope factor near unity. The competitive GABA antagonist bicuculline methochloride
Y Katz et al.
Brain research, 646(2), 235-241 (1994-05-23)
We examined the interactions of D,L-laudanosine, a potentially epileptogenic metabolite of the neuromuscular relaxant atracurium besylate, with gamma-aminobutyric acid (GABA) and opioid binding sites, all of which have been implicated in seizure activity. Laudanosine was almost ineffective at [3H]muscimol binding
B Pfleger et al.
Experimental brain research, 104(1), 81-88 (1995-01-01)
The influence of GABAA receptors on orientation selectivity of cat complex cells was tested by iontophoresis of the GABAA receptor blockers bicuculline and N-methyl-bicuculline while stimulating with drifting sinusoidal gratings. Reduction of orientation tuning was markedly less than reported in
H Qian et al.
Nature, 361(6408), 162-164 (1993-01-14)
gamma-Aminobutyric acid (GABA) is the main inhibitory neurotransmitter in the central nervous system. Two classes of GABA receptors (GABAA and GABAB) have been identified. GABAA receptors are ligand-gated chloride channels that are competitively antagonized by bicuculline, noncompetitively blocked by picrotoxin
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