77872-82-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77872-82-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,8,7 and 2 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 77872-82:
(7*7)+(6*7)+(5*8)+(4*7)+(3*2)+(2*8)+(1*2)=183
183 % 10 = 3
So 77872-82-3 is a valid CAS Registry Number.