87844-19-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87844-19-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,8,4 and 4 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 87844-19:
(7*8)+(6*7)+(5*8)+(4*4)+(3*4)+(2*1)+(1*9)=177
177 % 10 = 7
So 87844-19-7 is a valid CAS Registry Number.
87844-19-7Relevant articles and documents
Syntheses of Thiazolo- and Thiazinotriazinones
Arndt, Friedrich,Franke, Wilfried,Klose, Walter,Lorenz, Joerg,Schwarz, Katica
, p. 1302 - 1307 (2007/10/02)
The syntheses of the thiazolo- and thiazinotriazinones 3 - 6 are described.Preparations of compounds 3 and 5 were achieved regiospecifically by using the compounds 12 and 13.