91671-49-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91671-49-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,6,7 and 1 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 91671-49:
(7*9)+(6*1)+(5*6)+(4*7)+(3*1)+(2*4)+(1*9)=147
147 % 10 = 7
So 91671-49-7 is a valid CAS Registry Number.