253777-45-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 253777-45-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,3,7,7 and 7 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 253777-45:
(8*2)+(7*5)+(6*3)+(5*7)+(4*7)+(3*7)+(2*4)+(1*5)=166
166 % 10 = 6
So 253777-45-6 is a valid CAS Registry Number.