1297284-74-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1297284-74-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,7,2,8 and 4 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1297284-74:
(9*1)+(8*2)+(7*9)+(6*7)+(5*2)+(4*8)+(3*4)+(2*7)+(1*4)=202
202 % 10 = 2
So 1297284-74-2 is a valid CAS Registry Number.