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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Chlormezanone
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80-77-3

80-77-3 structure

80-77-3 structure

Name: chlormezanone
Chemical Name: chlormezanone
CAS Number: 80-77-3
Molecular Formula: C₁₁H₁₂ClNO₃S
Molecular Weight: 273.736
Catalog: API Nervous system medication Anxiolytic
Create Date: 2018-02-04 08:00:00
Modify Date: 2026-07-03 17:24:08
Chlormezanone resembles benzodiazepine. The action of Chlormezanone is similar to benzodiazepine-type agents. Chlormezanone is used as an anxiolytic and a muscle relaxant.

Name	chlormezanone
Synonyms	Supotran Suprotan 2-(4-Chlorophenyl)tetrahydro-3-methyl-4H-1,3-thiazin-4-one 1,1-dioxide Mio-Sed 2-(p-Chlorophenyl)tetrahydro-3-methyl-4H-1,3-thiazin-4-one MFCD00143951 Chlomedinon Rilasol Chlormethazanone 4h-1,3-thiazin-4-one,2-(4-chlorophenyl)tetrahydro-3-methyl-1,1-dioxide Dichloromethazanone UNII:4BU37OM8KL Clormetazanone Transanate Banabin-Sintyal banabil-sintyal win4692 Rilassol Clormetazon Phenol Miorilax muskel-trancophl Rilaquil 4H-1,3-Thiazin-4-one, 2-(4-chlorophenyl)tetrahydro-3-methyl-, 1,1-dioxide Clorilax 1,1-dioxide-2-(4-chlorophenyl)tetrahydro-3-methyl-4H-1,3-thiazin-4-one 2-(4-Chlorophenyl)-3-methyl-1,3-thiazinan-4-one 1,1-dioxide UNII:C14WB33Y0S 2-(pa-chlorophenyl)tetrahydro-3-methyl-4h-1,3-thiazin-4-one,1,1-dioxide 2-(4-Chlorophenyl)-3-methyl-4-metathiazanone 1,1-Dioxide Rilansyl Rexan 2-(p-chlorophenyl)tetrahydro-3-methyl-4h-1,3-thiazin-4-one1,1-dioxide Myolespen UNII:GP568V9G19 2-(p-Chlorophenyl)perhydro-3-methyl-1,3-thiazin-4-one 1,1-Dioxide ChlorMezanone (Trancopal) Muskel 4h-1,3-thiazin-4-one,2-(p-chlorophenyl)tetrahydro-3-methyl-1,1-dioxide 4h-1,3-thiazin-4-one, 2-(p-chlorophenyl)tetrahydro-3-methyl-, 1,1,-dioxide 2-(4-chlorophenyl)-3-methyl-4-metathiazanone-1,1-dioxide 2-(p-chlorophenyl)-3-methyl-1,3-perhydrothiazin-4-on-1,1-dioxide 2-(p-chlorophenyl)tetrahydro-3-methyl-4h-1,3-thiazin-4-one 1,1-dioxide 2-(p-chlorphenyl)-3-methyl-1,3-perhydrothiazin-4-on-1,1-dioxide 2-(pa-chlorophenyl)tetrahydro-3-methyl-4h-1,3-thiazin-4-one, 1,1-dioxide 4h-1,3-thiazin-4-one, 2-(4-chlorophenyl)tetrahydro-3-methyl-1,1-dioxide 4h-1,3-thiazin-4-one,2-(p-chlorophenyl)tetrahydro-3-methyl-,1,1,-dioxide 4H-1,3-Thiazin-4-one, tetrahydro-2-(p-chlorophenyl)-3-methyl-, 1,1-dioxide Alinam Rilax 4H-1,3-Thiazin-4-one, 2- (4-chlorophenyl)tetrahydro-3-methyl-, 1,1-dioxide EINECS 201-307-4 Chlormezanon Rillasol 2-(p-Chlorophenyl)tetrahydro-3-methyl-4H-1,3-thiazin-4-one 1,1-dioxide (±)-Chlormezanone Muskel-Trancopal 2-(p-chlorophenyl)-3-methyl-1,3-perhydrothiazin-4-on-1,1-dioxide 2-(4-chlorophenyl)-3-methyl-1,1-dioxo-1,3-thiazinan-4-one 2-(4-chlorophenyl)-1,1-diketo-3-methyl-1,3-thiazinan-4-one Banabin Dichloromezanone Banabin-syntyal Lobak 2-(4-CHLOROPHENYL)TETRAHYDRO-3-METHYL-4H,1,3-THIAZIN-4-ONE 1,1-DIOXIDE Bisina CHLORMEZANONE 4h-1,3-thiazin-4-one,tetrahydro-2-(p-chlorophenyl)-3-methyl-,1,1-dioxide 2-(4-Chlorophenyl)-3-methyl-4-thiazanone 1,1-dioxide 2-(p-Chlorphenyl)-3-methyl-1,3-perhydrothiazin-4-on-1,1-dioxide FENOL 4H-1,3-Thiazin-4-one, 2-(p-chlorophenyl)tetrahydro-3-methyl-, 1,1-dioxide (2S)-2-(4-chlorophenyl)-3-methyl-1,1-dioxo-1,3-thiazinan-4-one 2-(4-Chlorophenyl)-3-methyl-4-metathiazanone-1,1-dioxide Chlormethazone 2-(4-chlorophenyl)-3-methyl-4-methathiazanone-1,1-dioxide

Description	Chlormezanone resembles benzodiazepine. The action of Chlormezanone is similar to benzodiazepine-type agents. Chlormezanone is used as an anxiolytic and a muscle relaxant.
Related Catalog	Signaling Pathways >> Membrane Transporter/Ion Channel >> GABA Receptor Signaling Pathways >> Neuronal Signaling >> GABA Receptor Research Areas >> Neurological Disease
Target	Benzodiazepine[1]
In Vivo	Comparative results obtained with Chlormezanone in the dosage levels capable of producing more than 80% depression in the contralateral extensor[1].
Animal Admin	Cats[1] Effects of various agents (e.g., Chlormezanone 300 mg/kg i.p.) are studied on linguomandibular, extensor and patellar reflexes in spinal cats.
References	[1]. Sukehiro CHIBA, et al. EFFECTS OF NEW s-TRIAZOLOBENZODIAZEPINE (D-4OTA) AND OTHER CENTRAL MUSCLE RELAXANTS ON SPINAL AND SUPRASPINAL REFLEXES IN CATS. Japan. J. Pharmacol, 23, 83-96 (1973).

Density	1.4±0.1 g/cm3
Boiling Point	534.5±50.0 °C at 760 mmHg
Melting Point	114ºC
Molecular Formula	C₁₁H₁₂ClNO₃S
Molecular Weight	273.736
Flash Point	277.1±30.1 °C
Exact Mass	273.022644
PSA	62.83000
LogP	0.86
Vapour Pressure	0.0±1.4 mmHg at 25°C
Index of Refraction	1.580
Storage condition	Store at RT

CHEMICAL IDENTIFICATION

RTECS NUMBER :: XJ1050000

CHEMICAL NAME :: 4H-1,3-Thiazin-4-one, 2-(p-chlorophenyl)tetrahydro-3-methyl-, 1,1,-dioxide

CAS REGISTRY NUMBER :: 80-77-3

LAST UPDATED :: 199606

DATA ITEMS CITED :: 12

MOLECULAR FORMULA :: C11-H12-Cl-N-O3-S

MOLECULAR WEIGHT :: 273.75

WISWESSER LINE NOTATION :: T6VN DSWTJ B1 CR DG

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - woman

DOSE/DURATION :: 20 gm/kg

TOXIC EFFECTS :: Lungs, Thorax, or Respiration - emphysema Lungs, Thorax, or Respiration - acute pulmonary edema Lungs, Thorax, or Respiration - other changes

REFERENCE :: HOCHE8 Hochudoku. (Nippon Hochudoku Gakkai, c/o Kyushu Daigaku Igakubu Hoigaku Kyoshitsu, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812, Japan) V.8- 1990- Volume(issue)/page/year: 9,168,1991

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - man

DOSE/DURATION :: 157 mg/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - mydriasis (pupillary dilation) Behavioral - ataxia Behavioral - coma

REFERENCE :: BMJOAE British Medical Journal. (British Medical Assoc., BMA House, Tavistock Sq., London WC1H 9JR, UK) V.1- 1857- Volume(issue)/page/year: 292,732,1986

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - woman

DOSE/DURATION :: 140 mg/kg

TOXIC EFFECTS :: Behavioral - coma Vascular - BP lowering not characterized in autonomic section

REFERENCE :: BMJOAE British Medical Journal. (British Medical Assoc., BMA House, Tavistock Sq., London WC1H 9JR, UK) V.1- 1857- Volume(issue)/page/year: 286,845,1983

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 605 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - antipsychotic Lungs, Thorax, or Respiration - other changes

REFERENCE :: AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium) V.4- 1898- Volume(issue)/page/year: 130,280,1961

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 370 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 17,242,1967

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 600 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 9,601,1975

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 514 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: AAREAV Anesthesie, Analgesie, Reanimation. (Paris, France) V.14-38, 1957-81. Volume(issue)/page/year: 19,603,1962

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 322 mg/kg

TOXIC EFFECTS :: Behavioral - anticonvulsant

REFERENCE :: APTOA6 Acta Pharmacologica et Toxicologica. (Copenhagen, Denmark) V.1-59, 1945-86. For publisher information, see PHTOEH Volume(issue)/page/year: 19,247,1962

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 500 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 1,168,1959

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - cat

DOSE/DURATION :: >400 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 1,168,1959

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 600 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 1,168,1959 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3975 mg/kg/5D-C

TOXIC EFFECTS :: Related to Chronic Data - death

REFERENCE :: TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 1,168,1959

Hazard Codes	Xn
RTECS	XJ1050000

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