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B6434

Sigma-Aldrich

Bretazenil

≥96% (HPLC), solid

Synonym(s):

9H-Imidazo[1,5-a]pyrrolo[2,1-c][1,4]benzodiazepine-1-carboxylic acid, Ro 16-6028

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About This Item

Empirical Formula (Hill Notation):
C19H20N3O3Br
CAS Number:
84379-13-5
Molecular Weight:
418.28
MDL number:
MFCD00866987
UNSPSC Code:
12352200
PubChem Substance ID:
329773277

Quality Level

100

Assay

≥96% (HPLC)

form

solid

color

white

solubility

DMSO: 24 mg/mL
H2O: insoluble

originator

Roche

storage temp.

2-8°C

SMILES string

[H][C@@]12CCCN1C(=O)c3c(Br)cccc3-n4cnc(C(=O)OC(C)(C)C)c24

InChI

1S/C19H20BrN3O3/c1-19(2,3)26-18(25)15-16-13-8-5-9-22(13)17(24)14-11(20)6-4-7-12(14)23(16)10-21-15/h4,6-7,10,13H,5,8-9H2,1-3H3/t13-/m0/s1

InChI key

LWUDDYHYYNNIQI-ZDUSSCGKSA-N

General description

Bretazenil, a tetracyclic imidazocarboxylic ester, is an anxi-olytic/anticonvulsant agent. It possesses a half-life of 2.5 hours and is quickly absorbed.

Application

Bretazenil has been used to determine non-specific binding due to its affinity to bind to a variety of γ-aminobutyric acid type A (GABAA) receptor subtypes (α1-3;5). It has also been used as a GABAA receptor partial agonist in the subcutaneous Alzet minipumps to treat obese agouti?related protein (AgRP)?ablated and lean naive mice to study its effect on them.

Biochem/physiol Actions

Bretazenil is capable of binding to γ-aminobutyric acid type A (GABAA) receptors that are sensitive and insensitive to diazepam. This compound possesses negligible sedative or muscle relaxant effects.
Bretazenil is a benzodiazepine partial agonist.

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 was developed by Roche. To browse the list of other pharma-developed compounds and Approved Drugs/Drug Candidates, click here.

Storage Class Code

11 - Combustible Solids

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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Elisabetta Cagetti et al.
Molecular pharmacology, 63(1), 53-64 (2002-12-19)
One of the pharmacological targets of ethanol is the GABAA receptor (GABAR), whose function and expression are altered after chronic administration of ethanol. The details of the changes differ between experimental models. In the chronic intermittent ethanol (CIE) model for
A L van Steveninck et al.
British journal of clinical pharmacology, 41(6), 565-573 (1996-06-01)
1. Interaction between alcohol and bretazenil (a benzodiazepine partial agonist in animals) was studied with diazepam as a comparator in a randomized, double-blind, placebo controlled six-way cross over experiment in 12 healthy volunteers, aged 19-26 years. 2. Bretazenil (0.5 mg)
M Nazar et al.
Journal of neural transmission (Vienna, Austria : 1996), 106(5-6), 369-381 (1999-08-12)
The effects of an intrahippocampal administering of a nonselective full (midazolam), a partial benzodiazepine (BDZ) receptor agonist (bretazenil), and a BDZ1 selective (zolpidem) receptor ligand were examined in the open field test (OFT) of neophobia and Vogel's test (VT) of
N Brown et al.
British journal of pharmacology, 136(7), 965-974 (2002-07-30)
1: The pharmacology of the stable cell line expressing human alpha(4)beta(3)delta GABA(A) receptor was investigated using whole-cell patch-clamp techniques. 2: alpha(4)beta(3)delta receptors exhibited increased sensitivity to GABA when compared to alpha(4)beta(3)gamma(2) receptors, with EC(50)'s of 0.50 (0.46, 0.53) microM and
M R Guscott et al.
Behavioural pharmacology, 11(6), 495-504 (2000-12-05)
In the rat, fear-potentiated startle (FPS) test animals are first trained to associate brief light presentations with a mild electric footshock and then tested for startle responses to acoustic stimuli, delivered either in darkness (i.e. baseline startle) or after the
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