949021-12-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 949021-12-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,9,0,2 and 1 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 949021-12:
(8*9)+(7*4)+(6*9)+(5*0)+(4*2)+(3*1)+(2*1)+(1*2)=169
169 % 10 = 9
So 949021-12-9 is a valid CAS Registry Number.