78388-98-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78388-98-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,3,8 and 8 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 78388-98:
(7*7)+(6*8)+(5*3)+(4*8)+(3*8)+(2*9)+(1*8)=194
194 % 10 = 4
So 78388-98-4 is a valid CAS Registry Number.