217812-49-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 217812-49-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,7,8,1 and 2 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 217812-49:
(8*2)+(7*1)+(6*7)+(5*8)+(4*1)+(3*2)+(2*4)+(1*9)=132
132 % 10 = 2
So 217812-49-2 is a valid CAS Registry Number.