270256-20-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 270256-20-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,0,2,5 and 6 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 270256-20:
(8*2)+(7*7)+(6*0)+(5*2)+(4*5)+(3*6)+(2*2)+(1*0)=117
117 % 10 = 7
So 270256-20-7 is a valid CAS Registry Number.