1256930-72-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1256930-72-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,6,9,3 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1256930-72:
(9*1)+(8*2)+(7*5)+(6*6)+(5*9)+(4*3)+(3*0)+(2*7)+(1*2)=169
169 % 10 = 9
So 1256930-72-9 is a valid CAS Registry Number.