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Azasetron hydrochloride

CAS No.
123040-69-7
Chemical Name:
Azasetron hydrochloride
Synonyms
Y-25130;AZASETRON HCL;Azasetron base;Arazasetron HCl;Azasetron Impurity?2;Y-25130 HYDROCHLORIDE;Azastron hydrochloride;Azasetron hydrochlorid;Azasetron hydrochloride base;Azasetron hydrochloride USP/EP/BP
CBNumber:
CB6675310
Molecular Formula:
C17H20ClN3O3
Molecular Weight:
349.81
MDL Number:
MFCD00209913
MOL File:
123040-69-7.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-04-24 14:58:24
Product description Number Pack Size Price
Azasetron 441972 10mg $496
Azasetron 441972 25mg $814
Azasetron ≥98% CS-0002387 5g $849
Azasetron AA000JWV 10mg $513
Azasetron AA000JWV 50mg $529
More product size

Azasetron hydrochloride Properties

Melting point 301-303°C
Boiling point 558.0±50.0 °C(Predicted)
Density 1.42±0.1 g/cm3(Predicted)
storage temp. -20°C Freezer
pka 13.31±0.20(Predicted)
CAS DataBase Reference 123040-69-7(CAS DataBase Reference)
FDA UNII 77HC7URR9Z

Azasetron hydrochloride price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Usbiological 441972 Azasetron 123040-69-7 10mg $496 2026-06-03 Buy
Usbiological 441972 Azasetron 123040-69-7 25mg $814 2026-06-03 Buy
ChemScene CS-0002387 Azasetron ≥98% 123040-69-7 5g $849 2026-06-04 Buy
aablocks AA000JWV Azasetron 123040-69-7 10mg $513 2026-05-25 Buy
aablocks AA000JWV Azasetron 123040-69-7 50mg $529 2026-05-25 Buy
Product number Packaging Price Buy
441972 10mg $496 Buy
441972 25mg $814 Buy
CS-0002387 5g $849 Buy
AA000JWV 10mg $513 Buy
AA000JWV 50mg $529 Buy

Azasetron hydrochloride Chemical Properties,Uses,Production

Chemical Properties

White to Off-White Solid

Originator

Azasetron,Pharm Chemical

Uses

As a 5-HT3 receptor antagonist, Azasetron hydrochloride can be used as an antiemetic.

Definition

ChEBI: Azasetron hydrochloride is a benzoxazine.

Manufacturing Process

To a solution of 2-(2-carboxy-4-chlorophenoxy)acetic acid in concentrated sulfuric acid is added dropwise a mixed liquid of fuming nitric acid and concentrated sulfuric acid under stirring with keeping at a temperature below 10°C. After the addition, the reaction mixture is stirred and poured into 10 L of ice-cold water. The precipitated crystals are collected by filtration, washed with 2 L of water four times and them dried to give 2-(2-carboxy-4-chloro-6- nitrophenoxy)acetic acid.
To a solution of ferrous sulfate heptahydrate in of hot water is added a solution of 2-(2-carboxy-4-chloro-6-nitrophenoxy)acetic acid and aqueous concentrated ammonia solution in water under stirring. After stirring, to the reaction mixture is twice added aqueous concentrated ammonia solution. While the reaction mixture becomes exothermic, stirring is continued. The resultant mixture is filtered through a celite layer under reduced pressure and washed with hot water twice. The filtrate is cooled and made acid with concentrated hydrochloric acid. The precipitated crystals are washed with water and dried to give 6-chloro-3,4-dihydro-3-oxo-2H-1,4-benzoxazine-8- carboxylic acid.
A mixture of 6-chloro-3,4-dihydro-3-oxo-2H-1,4-benzoxazine-8-carboxylic acid, methanol and concentrated sulfuric acid is refluxed under heating with stirring, and then cooled. The precipitated crystals are collected by filtration, washed with methanol and dried to give methyl 6-chloro-3,4-dihydro-3-oxo- 2H-1,4-benzoxazine-8-carboxylate, melting point 239°-241°C.
To a solution of methyl 6-chloro-3,4-dihydro-3-oxo-2H-1,4-benzoxazine-8-carboxylate in dimethylformamide is added potassium t-butoxide and solution stirred at room temperature. To the resultant solution is added dropwise a solution of methyl iodide in dimethylformainide under stirring. After the reaction solution is stirred, water is added thereto. The insoluble substance is collected by filtration, washed with water and dried to give methyl 6-chloro- 3,4-dihydro-4-methyl-3-oxo-2H-1,4-benzoxazine-8-carboxylate. A mixture of methyl 6-chloro-3,4-dihydro-4-methyl-3-oxo-2H-1,4- benzoxazine-8-carboxylate, ethanol and 4% aqueous potassium hydroxide solution is refluxed with heating. The resultant solution is cooled and water is added thereto followed by filtration. The filtrate is made acid with concentrated hydrochloric acid. The precipitated crystals are collected by filtration, washed with water and dried, and then recrystallized from ethanol to give 6-chloro-3,4-dihydro-4-methyl-3-oxo-2H-1,4-benzoxazine-8-carboxylic acid, melting point 241°-243°C.
A solution of 6-chloro-3,4-dihydro-4-methyl-3-oxo-2H-1,4-benzoxazine-8- carboxylic acid in tetrahydrofuran and dimethylformamide is cooled to below 0°C and triethylamine is added under stirring thereto. Further, ethyl chlorocarbonate is added and the mixture is stirred at room temperature. To the resultant mixture is added 3-amino-8-azabicyclo[3.2.1]octane and the mixture stirred. After completion of the reaction, aqueous sodium hydrogen carbonate and ethyl acetate are added. The organic layer is separated, washed with water and dried over magnesium sulfate. The solvent is distilled off to give 6-chloro-3,4-dihydro-4-methyl-N-(8-azabicyclo[3.2.1]oct-3-yl)-3- oxo-2H-1,4-benzoxazine-8-carboxamide. In practice it is usually used as hydrochloride.

Therapeutic Function

Antiemetic

Global( 179)Suppliers
Supplier Tel Email Country ProdList Advantage
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21533 55
career henan chemical co
+86-0371-86658258 sales@coreychem.com China 29766 58
CONIER CHEM AND PHARMA LIMITED
sales@conier.com China 49906 58
Xi'an Yutbon Pharmaceutical Technology Co., Ltd
029-81140587 sales@yutbon.com China 452 58
SIMAGCHEM CORP
+86-5922680277 +86-13806087780 sale@simagchem.com China 17339 58
TargetMol Chemicals Inc.
+1-781-999-5354; +1-00000000000 marketing@targetmol.com United States 32431 58
Dideu Industries Group Limited
+86-29-89586680 +86-15129568250 1059@dideu.com China 29096 58
AFINE CHEMICALS LIMITED
+86-571-85134551 +86-18958018566 info@afinechem.com China 15058 58
Wuhan Fortuna Chemical Co., Ltd
+86-27-59207850 info@fortunachem.com China 5998 58
Baoji Guokang Healthchem Co., Ltd.
+86-0917-3909592 +86-13892490616 gksales1@gk-bio.com China 9037 58

View Lastest Price from Azasetron hydrochloride manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Azasetron hydrochloride pictures 2026-08-18 Azasetron hydrochloride
123040-69-7
1KG 98%min 500kgs WUHAN FORTUNA CHEMICAL CO., LTD
Azasetron hydrochloride USP/EP/BP pictures 2025-11-18 Azasetron hydrochloride USP/EP/BP
123040-69-7
$1.10 1g 99.9% 100 Tons min Dideu Industries Group Limited
Azasetron hydrochloride pictures 2025-04-04 Azasetron hydrochloride
123040-69-7
1kg 98% 1Ton Henan Aochuang Chemical Co.,Ltd.
N-1-AZABICYCLO[2.2.2]-OCT-3-YL-6-CHLORO-3,4-DIHYDRO-4-METHYL-3-OXO-2H-1,4-BENZOXAZINE-8-CARBOXAMIDE, HYDROCHLORIDE N-(1-AZABICYCLO[2.2.2]OCT-3-YL)-6-CHLORO-4-METHYL-3-OXO-3,4-DIHYDRO-2H-1,4-BENZOXAZINE-8-CARBOXAMIDE HCL N-(1-AZABICYCLO[2.2.2]OCT-3-YL)-6-CHLORO-4-METHYL-3-OXO-3,4-DIHYDRO-2H-1,4-BENZOXAZINE-8-CARBOXAMIDE HYDROCHLORIDE Y-25130 Y-25130 HYDROCHLORIDE AZASETRON HCL Azasetron base 6-chloro-3-keto-4-methyl-N-quinuclidin-3-yl-1,4-benzoxazine-8-carboxamide N-(1-azabicyclo[2.2.2]octan-8-yl)-6-chloro-4-methyl-3-oxo-1,4-benzoxazine-8-carboxamide Azastron hydrochloride 3,4-DIHYDRO-4-METHYL-3-OXO-2H-1,4-BENZOXAZINE-8-CARBOXAMIDE, HYDROCHLORIDE Azasetron hydrochloride base Azasetron hydrochlorid Azasetron hydrochloride N-1-Azabicyclo[2.2.2]oct-3-yl-6-chloro-3,4-dihydro-4-methyl-3-oxo-2H-1,4-benzoxazine-8-carboxamide hydrochloride N-(1-azabicyclo[2.2.2]octan-3-yl)-6-chloro-4-methyl-3-oxo-1,4-benzoxazine-8-carboxamide hydrochloride Arazasetron HCl Azasetron hydrochloride USP/EP/BP Azasetron Impurity?2 123040-69-7 123040697 C17H20ClN3O3 C17H202N3O3HCl C17H20ClN3O3HCl Intermediates & Fine Chemicals Pharmaceuticals anti-emetic Active Pharmaceutical Ingredients