77747-82-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77747-82-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,7,4 and 7 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 77747-82:
(7*7)+(6*7)+(5*7)+(4*4)+(3*7)+(2*8)+(1*2)=181
181 % 10 = 1
So 77747-82-1 is a valid CAS Registry Number.