77830-86-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77830-86-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,8,3 and 0 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 77830-86:
(7*7)+(6*7)+(5*8)+(4*3)+(3*0)+(2*8)+(1*6)=165
165 % 10 = 5
So 77830-86-5 is a valid CAS Registry Number.