1257243-83-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1257243-83-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,2,4 and 3 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1257243-83:
(9*1)+(8*2)+(7*5)+(6*7)+(5*2)+(4*4)+(3*3)+(2*8)+(1*3)=156
156 % 10 = 6
So 1257243-83-6 is a valid CAS Registry Number.