76578-89-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 76578-89-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,5,7 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 76578-89:
(7*7)+(6*6)+(5*5)+(4*7)+(3*8)+(2*8)+(1*9)=187
187 % 10 = 7
So 76578-89-7 is a valid CAS Registry Number.