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Merck
CN

SML0321

Cyamemazine

≥98% (HPLC)

Synonym(s):

10-[3-(Dimethylamino)-2-methylpropyl]-10H-phenothiazine-2-carbonitrile, 7204 R. E., 7204 RP, Ciamatil, Cianatil, Cyamemazin, R.P. 7204, TH 2602

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About This Item

Empirical Formula (Hill Notation):
C19H21N3S
CAS Number:
3546-03-0
Molecular Weight:
323.46
EC Number:
222-594-2
MDL number:
MFCD00868180
UNSPSC Code:
12352200
PubChem Substance ID:
329825326
NACRES:
NA.77

Key Documents

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Quality Level

100

Assay

≥98% (HPLC)

form

powder

color

light yellow to yellow-green

solubility

DMSO: ≥5 mg/mL

storage temp.

2-8°C

SMILES string

CC(CN(C)C)CN1c2ccccc2Sc3ccc(cc13)C#N

InChI

1S/C19H21N3S/c1-14(12-21(2)3)13-22-16-6-4-5-7-18(16)23-19-9-8-15(11-20)10-17(19)22/h4-10,14H,12-13H2,1-3H3

InChI key

SLFGIOIONGJGRT-UHFFFAOYSA-N

Application

Cyamemazine has been used as an internal standard and antipsychotic drug to spike plasma samples in mass spectrometry studies. It has also been used as an analytical standard in gas chromatography-tandem mass spectroscopic (GC-MS/MS) analysis.

Biochem/physiol Actions

Cyamemazine belongs to the class of phenothiazine drugs. It is known to treat severe depression, schizophrenia and bipolar disorder.
Cyamemazine is a potent antagonist of 5-HT2C and 5-HT3 receptors with antipsychotic and anxiolytic properties.
Cyamemazine is a potent antagonist of 5-HT2C and 5-HT3 receptors.

Pictograms

Environment
GHS09

Signal Word

Warning

Hazard Statements

H410

Precautionary Statements

P273 - P391 - P501

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
0000415892
0000415892
0000140357
0000140355
0000138151

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Michel Bourin et al.
CNS drug reviews, 10(3), 219-229 (2004-10-20)
Several studies have suggested that the antipsychotic compound, cyamemazine, possesses anxiolytic properties in humans. The original pharmacological profile of cyamemazine (D(2), 5-HT(2A), 5-HT(2C), and 5-HT(3) receptor antagonist), which was established by binding, microdialysis and behavioral studies, is consistent with these
Gurmit Singh et al.
Bioorganic & medicinal chemistry letters, 22(6), 2160-2162 (2012-03-01)
A modified Polonovski reaction has been employed to obtain the N-demethylated metabolite of the neuroleptic drug cyamemazine. The synthesis involves N-oxide formation, isolation of the corresponding N-oxide, and a FeSO(4)·7H(2)O mediated Polonovski reaction to afford the desired monodesmethyl cyamemazine. In
Paula Proença et al.
Journal of analytical toxicology, 44(8), 915-922 (2020-08-12)
Antipsychotic drugs (AP) are widely prescribed for the treatment of schizophrenia and psychosis. The pharmacological treatment of schizophrenia is often performed with the simultaneous use of two or more antipsychotic agents to achieve the desired control of psychotic symptoms Available
Sébastien Duband et al.
Forensic science international, 214(1-3), e26-e29 (2011-08-16)
Forensic pathologists are sometimes confronted with microscopic foreign bodies mixed in with soft tissues surrounding wounds and which are thus difficult to identify. This identification, however, could be primordial in investigating a crime and in determining the weapon used. A
Amine Benyamina et al.
European journal of pharmacology, 578(2-3), 142-147 (2007-10-16)
Animal and human pharmacological studies indicate that the antipsychotic action of cyamemazine results from blockade of dopamine D(2) receptors, its anxiolytic properties from serotonin 5-HT(2C) receptor antagonism and the low incidence of extrapyramidal side effects from a potent 5-HT(2A) receptor
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