149913-91-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 149913-91-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,9,1 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 149913-91:
(8*1)+(7*4)+(6*9)+(5*9)+(4*1)+(3*3)+(2*9)+(1*1)=167
167 % 10 = 7
So 149913-91-7 is a valid CAS Registry Number.