2-Methylthio-4-Pyrimidinone Making for Mizolastine CAS Number 5751-20-2

Payment Type: L/C,T/T
Incoterm: FOB
Min. Order: 1 Kilogram
Delivery Time: 15 Days

Basic Info

Model No.: 5751-20-2

Additional Info

Packaging: AS REQUIRED

Productivity: KGS


Transportation: Air

Place of Origin: CHINA


Certificate: ISO

Product Description

2-Methylthio-4-pyrimidinone is intermediate for Mizolastine CAS number 5751-20-2, which is used to condense with mizolastine intermediate 6 to give mizolastine.The specific procedure is roughly as follows: 2-Methylthio-4-pyrimidinone is added to a DMF solution containing sodium carbonate and sodium iodide. The prepared mizolastine intermediate 6 CAS 5751-20-2 was added under stirring, heated to reflux, cooled to room temperature, poured into cold water and extracted with ethyl acetate. Combined organic phases, After use anhydrous sodium sulfate to dry and filtered, and the filtrate was evaporated under reduced pressure to remove the solvent. The residue material was recrystallized from methylene chloride-methanol (1: 1) to give a whjite crystal mizolastine. Some people have adjusted this method, directly placed 2-methylthio-4-pyrimidinone and Mizolastine intermediate 6 in reactor, heated to 170 ° C, the reaction was stirred for more than 10 hours ,cooled  to give a crude mizolastine, plus 3.5 times the weight ratio of anhydrous ethanol, stirring, allowed to stand, filtered and dried to get mizolastine.

Thera. Category:anti-histamine and anti-allergic 

Cas No.: 84946-20-3

Synonym:2-(Methylthio)pyrimidine-4(1H)-one;2-Methylthio-4(3H)-pyrimidone;(2R,3R,4S,5R)-2-amino-3,4,5,6-tetrahydroxyhexanal;2-METHYLTHIO-4-PYRIMIDONE 98.5+%;4(3H)-Pyrimidinone, 2-(methylthio)-;2-METHYLSULFANYL-4-OXOPYRIMIDINE;2-methylthiopyrimidin-4-one;2-(Methylsulfanyl)pyrimidin-4-ol ,98%;


Molecular Weight:  142.18

Molecular formula:C5H6N2OS

Assay: ≥98.%

Appearance: White Crystalline solid

Packing:Export worthy packing

Material Safety Data Sheet:Available on request

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