78638-99-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78638-99-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,6,3 and 8 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 78638-99:
(7*7)+(6*8)+(5*6)+(4*3)+(3*8)+(2*9)+(1*9)=190
190 % 10 = 0
So 78638-99-0 is a valid CAS Registry Number.