76778-23-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 76778-23-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,7,7 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 76778-23:
(7*7)+(6*6)+(5*7)+(4*7)+(3*8)+(2*2)+(1*3)=179
179 % 10 = 9
So 76778-23-9 is a valid CAS Registry Number.