117740-68-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117740-68-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,7,4 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 117740-68:
(8*1)+(7*1)+(6*7)+(5*7)+(4*4)+(3*0)+(2*6)+(1*8)=128
128 % 10 = 8
So 117740-68-8 is a valid CAS Registry Number.
117740-68-8Relevant articles and documents
8-azaxanthine derivatives, and pharmaceutical compositions containing them
-
, (2008/06/13)
The present invention relates to 8-azaxanthines derivatives having antiasthmatic activity and the general formula: STR1 wherein: R1 is a hydrogen or a lower alkyl of from one to six carbon atoms or an arylalkyl group; R2 is a lower a