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4-chloro-2-methylthio-5,6,7,8-tetrahydro<1>benzothieno<2,3-d>pyrimidine is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

81765-98-2

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81765-98-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81765-98-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,6 and 5 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 81765-98:
(7*8)+(6*1)+(5*7)+(4*6)+(3*5)+(2*9)+(1*8)=162
162 % 10 = 2
So 81765-98-2 is a valid CAS Registry Number.

81765-98-2Relevant academic research and scientific papers

3,4-Dihydrothienopyrimidines. II. Synthesis and Sodium Borohydride Reduction of 2-Substituted 4-Chloro- and 4-Unsubstituted-thienopyrimidines

Yamaguchi, Hitoshi,Ishikawa, Fumiyoshi

, p. 326 - 332 (2007/10/02)

The synthesis and sodium borohydride reduction of 4-chloro- (1) and 4-unsubstituted- (3) 5,6,7,8-tetrahydrobenzothienopyrimidines, substituted with various groups, such as chloro, hydrogen, methyl, phenyl, amino, ethoxy, methylthio, methylsulfin

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