1257267-20-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1257267-20-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,2,6 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1257267-20:
(9*1)+(8*2)+(7*5)+(6*7)+(5*2)+(4*6)+(3*7)+(2*2)+(1*0)=161
161 % 10 = 1
So 1257267-20-1 is a valid CAS Registry Number.