301308-73-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 301308-73-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,1,3,0 and 8 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 301308-73:
(8*3)+(7*0)+(6*1)+(5*3)+(4*0)+(3*8)+(2*7)+(1*3)=86
86 % 10 = 6
So 301308-73-6 is a valid CAS Registry Number.
301308-73-6Relevant 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 (2012)
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.