78389-13-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78389-13-6 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 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 78389-13:
(7*7)+(6*8)+(5*3)+(4*8)+(3*9)+(2*1)+(1*3)=176
176 % 10 = 6
So 78389-13-6 is a valid CAS Registry Number.