1197342-74-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1197342-74-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,7,3,4 and 2 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1197342-74:
(9*1)+(8*1)+(7*9)+(6*7)+(5*3)+(4*4)+(3*2)+(2*7)+(1*4)=177
177 % 10 = 7
So 1197342-74-7 is a valid CAS Registry Number.