67971-74-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67971-74-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,9,7 and 1 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 67971-74:
(7*6)+(6*7)+(5*9)+(4*7)+(3*1)+(2*7)+(1*4)=178
178 % 10 = 8
So 67971-74-8 is a valid CAS Registry Number.