ChemicalBook > CAS DataBase List > Chlormezanone

Chlormezanone

Product Name
Chlormezanone
CAS No.
80-77-3
Chemical Name
Chlormezanone
Synonyms
Lobak;Rexan;Rilax;Alinam;Bisina;Muskel;win4692;FENAROL;Banabin;Mio-Sed
CBNumber
CB8355331
Molecular Formula
C11H12ClNO3S
Formula Weight
273.74
MOL File
80-77-3.mol
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Chlormezanone Property

Melting point:
114 °C
Boiling point:
534.5±50.0 °C(Predicted)
Density 
1.2205 (rough estimate)
refractive index 
1.6300 (estimate)
storage temp. 
Sealed in dry,Room Temperature
solubility 
Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)
form 
Solid
pka
-2.37±0.40(Predicted)
color 
White to Pale Yellow
Merck 
14,2106
NIST Chemistry Reference
Chlormezanone(80-77-3)
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Safety

RTECS 
XJ1050000
HS Code 
2934.99.4400
Hazardous Substances Data
80-77-3(Hazardous Substances Data)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P330Rinse mouth.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

TCI Chemical
Product number
C1221
Product name
Chlormezanone
Purity
>98.0%(HPLC)(N)
Packaging
1g
Price
$33
Updated
2024/03/01
Cayman Chemical
Product number
25716
Product name
Chlormezanone
Purity
≥98%
Packaging
500mg
Price
$37
Updated
2024/03/01
Cayman Chemical
Product number
25716
Product name
Chlormezanone
Purity
≥98%
Packaging
1g
Price
$68
Updated
2024/03/01
Tocris
Product number
0456
Product name
Chlormezanone
Purity
≥99%(HPLC)
Packaging
50
Price
$85
Updated
2021/12/16
Usbiological
Product number
254964
Product name
Chlormezanone
Packaging
1g
Price
$389
Updated
2021/12/16
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Chlormezanone Chemical Properties,Usage,Production

Originator

Trancopal,Winthrop-Breon,US,1958

Uses

Skeletal muscle relaxant

Uses

Chlormezanone improves the emotional state of the patient, relieving moderate anxiety and stress. However, it has a number of side effects, and because it does not have any advantage over other anxiolytics, it is rarely used in practice.

Uses

The use of chlormezanone is associated with large increases in the risk of Stevens-Johnson syndrome or toxic epidermal necrolysis.

Definition

ChEBI: A 1,3-thiazine that is 1,3-thiazinan-4-one S,S-dioxide in which a hydrogen at position 2 is substituted by a 4-chlorophenyl group and the hydrogen attached to the nitrogen is substituted by methyl. A non-benzodiazepine muscle relaxant, it was used in the management of anxiety and in the treatment of muscle spasms until being discontinued worldwide by its manufacturer in 1996, due to rare but serious cutaneous reactions.

Manufacturing Process

A solution of 4-chlorobenzaldehyde is reacted with beta-mercaptopropionic acid and with methylamine. The mixture is refluxed in benzene and water is removed from an overhead separator. The reaction mixture was cooled, washed with dilute ammonium hydroxide and water, and the benzene was removed by distillation in vacuo. The oily residue was taken up in ether from which it crystallized. The precipitate was recrystallized twice from ether to yield 2-(4-chlorophenyl)-3-methyl-4-metathiazanone.
A solution of 11.2 g of potassium permanganate in 100 ml of warm water was added dropwise to a well stirred solution of 10 g of 2-(4-chlorophenyl)-3- methyl-4-metathiazanone in 50 ml of glacial acetic acid. The temperature was kept below 30°C with external cooling. An aqueous sodium bisulfite solution was then added to remove the manganese dioxide. The thick whitish oil which separated was taken up in chloroform and the extract was washed with water. Removal of the chloroform by distillation in vacuo yielded an oily residue which solidified. The solid was recrystallized from isopropyl alcohol to give 5 gof the product, 2-(4-chlorophenyl)-3-methyl-4-metathiazanone-1,1-dioxide, MP 116.2° to 118.6°C (corr.).

brand name

Trancopal (Sanofi Aventis).

Therapeutic Function

Tranquilizer

World Health Organization (WHO)

Chlormezanone is a sedative with antianxiety properties and a central skeletal muscle relaxant effect. It had already been falling into obsolescence for several years.

Biological Activity

Anxiolytic and skeletal muscle relaxant that acts at the benzodiazepine site of GABA A receptors.

Synthesis

Chlormezanone, 2-(p-chlorophenyl)-tetrahydro-3-methyl-4H-1,3- tiazin-4-on-1,1-dioxide (5.2.8), is synthesized by joint condensation of mercaptopropionic acid, methylamine, and 4-chlorobenzaldehyde, evidently through the intermediate stage of formation of 4-chlorobenzylidenemethylamine, giving the aminothioacetal 2- (p-chlorophenyl)-tetrahydro-3-methyl-4H-1,3-tiazin-4-one (5.2.7). Oxidation of the sulfur atom using potassium permanganate gives chlormezanone (5.2.8) [62,63].

storage

Room temperature

Chlormezanone Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from Chlormezanone manufacturers

Xiamen Wonderful Bio Technology Co., Ltd.
Product
Chlormezanone 80-77-3
Price
US $15.00/KG
Min. Order
1250KG
Purity
99%
Supply Ability
330T
Release date
2023-07-21
Career Henan Chemical Co
Product
Chlormezanone 80-77-3
Price
US $7.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
100kg
Release date
2019-08-02

80-77-3, ChlormezanoneRelated Search:


  • 2-(4-Chlorophenyl)-3-methyl-1,3-thiazinan-4-one 1,1-dioxide
  • 2-(4-Chlorophenyl)-3-methyl-4-metathiazanone-1,1-dioxide
  • 2-(4-Chlorophenyl)-3-methyl-4-thiazanone 1,1-dioxide
  • 2-(para-chlorophenyl)tetrahydro-3-methyl-4h-1,3-thiazin-4-one,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
  • 2-(4-chlorophenyl)-3-methyl-1,1-dioxo-1,3-thiazinan-4-one
  • ChlorMezanone (Trancopal)
  • 1,1-dioxide-2-(4-chlorophenyl)tetrahydro-3-methyl-4H-1,3-thiazin-4-one
  • 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
  • 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,2-(p-chlorophenyl)tetrahydro-3-methyl-1,1-dioxide
  • win4692
  • 2-(p-Chlorophenyl)tetrahydro-3-methyl-4H-1,3-thiazin-4-one 1,1-dioxide
  • 2-(p-chlorophenyl)tetrahydro-3-methyl-4h-1,3-thiazin-4-one1,1-dioxide
  • 2-(p-Chlorphenyl)-3-methyl-1,3-perhydrothiazin-4-on-1,1-dioxide
  • FENAROL
  • CHLORMEZANONE
  • 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-(para-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
  • 2-(4-chlorophenyl)-1,1-diketo-3-methyl-1,3-thiazinan-4-one
  • 2-(4-chlorophenyl)-3-methyl-4-methathiazanone-1,1-dioxide
  • 2-(4-CHLOROPHENYL)TETRAHYDRO-3-METHYL-4H,1,3-THIAZIN-4-ONE 1,1-DIOXIDE
  • (2S)-2-(4-chlorophenyl)-3-methyl-1,1-dioxo-1,3-thiazinan-4-one
  • 4h-1,3-thiazin-4-one,tetrahydro-2-(p-chlorophenyl)-3-methyl-,1,1-dioxide
  • Alinam
  • banabil-sintyal
  • Banabin
  • Banabin-Sintyal
  • Banabin-syntyal
  • Bisina
  • Chlomedinon
  • Chlormethazanone
  • Chlormethazone
  • Chlormezanon
  • Clorilax
  • Clormetazanone
  • Clormetazon
  • Dichloromethazanone
  • Dichloromezanone
  • Lobak
  • Miorilax
  • Mio-Sed
  • Muskel
  • Muskel-Trancopal
  • muskel-trancophl
  • Myolespen
  • Phenarol
  • Rexan
  • Rilansyl
  • Rilaquil
  • Rilasol
  • Rilassol
  • Rilax
  • Rillasol
  • Supotran