291314-21-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 291314-21-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,1,3,1 and 4 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 291314-21:
(8*2)+(7*9)+(6*1)+(5*3)+(4*1)+(3*4)+(2*2)+(1*1)=121
121 % 10 = 1
So 291314-21-1 is a valid CAS Registry Number.