19777-92-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19777-92-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,7,7 and 7 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 19777-92:
(7*1)+(6*9)+(5*7)+(4*7)+(3*7)+(2*9)+(1*2)=165
165 % 10 = 5
So 19777-92-5 is a valid CAS Registry Number.