254432-70-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 254432-70-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,4,4,3 and 2 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 254432-70:
(8*2)+(7*5)+(6*4)+(5*4)+(4*3)+(3*2)+(2*7)+(1*0)=127
127 % 10 = 7
So 254432-70-7 is a valid CAS Registry Number.