937959-57-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 937959-57-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,7,9,5 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 937959-57:
(8*9)+(7*3)+(6*7)+(5*9)+(4*5)+(3*9)+(2*5)+(1*7)=244
244 % 10 = 4
So 937959-57-4 is a valid CAS Registry Number.
937959-57-4Relevant articles and documents
Facile approach to the synthesis of substituted thieno[2,3-d]pyrimidin-4- ones
Hovhannisyan, Anna,Aristakesyan, Lilit,Melikyan, Gagik
, p. 253 - 256 (2013/05/09)
Condensation of Gewald's thiophenes substituted with a dimethylaminomethyleneamino group at position 2 with primary amines yields 5/6-aryl-thieno[2,3-d] pyrimidin-4-ones with variable substituents at the N3 position.
