1257307-68-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1257307-68-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,3,0 and 7 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1257307-68:
(9*1)+(8*2)+(7*5)+(6*7)+(5*3)+(4*0)+(3*7)+(2*6)+(1*8)=158
158 % 10 = 8
So 1257307-68-8 is a valid CAS Registry Number.