1253809-74-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1253809-74-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,3,8,0 and 9 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1253809-74:
(9*1)+(8*2)+(7*5)+(6*3)+(5*8)+(4*0)+(3*9)+(2*7)+(1*4)=163
163 % 10 = 3
So 1253809-74-3 is a valid CAS Registry Number.