667901-94-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 667901-94-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,7,9,0 and 1 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 667901-94:
(8*6)+(7*6)+(6*7)+(5*9)+(4*0)+(3*1)+(2*9)+(1*4)=202
202 % 10 = 2
So 667901-94-2 is a valid CAS Registry Number.