1297284-31-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1297284-31-1 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, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1297284-31:
(9*1)+(8*2)+(7*9)+(6*7)+(5*2)+(4*8)+(3*4)+(2*3)+(1*1)=191
191 % 10 = 1
So 1297284-31-1 is a valid CAS Registry Number.