83777-15-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83777-15-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,7,7 and 7 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 83777-15:
(7*8)+(6*3)+(5*7)+(4*7)+(3*7)+(2*1)+(1*5)=165
165 % 10 = 5
So 83777-15-5 is a valid CAS Registry Number.