79923-90-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 79923-90-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,9,2 and 3 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 79923-90:
(7*7)+(6*9)+(5*9)+(4*2)+(3*3)+(2*9)+(1*0)=183
183 % 10 = 3
So 79923-90-3 is a valid CAS Registry Number.