1256247-74-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1256247-74-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,6,2,4 and 7 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1256247-74:
(9*1)+(8*2)+(7*5)+(6*6)+(5*2)+(4*4)+(3*7)+(2*7)+(1*4)=161
161 % 10 = 1
So 1256247-74-1 is a valid CAS Registry Number.