72774-23-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72774-23-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,7,7 and 4 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 72774-23:
(7*7)+(6*2)+(5*7)+(4*7)+(3*4)+(2*2)+(1*3)=143
143 % 10 = 3
So 72774-23-3 is a valid CAS Registry Number.