7759-04-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7759-04-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,7,5 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 7759-04:
(6*7)+(5*7)+(4*5)+(3*9)+(2*0)+(1*4)=128
128 % 10 = 8
So 7759-04-8 is a valid CAS Registry Number.