78958-99-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78958-99-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,9,5 and 8 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 78958-99:
(7*7)+(6*8)+(5*9)+(4*5)+(3*8)+(2*9)+(1*9)=213
213 % 10 = 3
So 78958-99-3 is a valid CAS Registry Number.