73689-84-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73689-84-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,6,8 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 73689-84:
(7*7)+(6*3)+(5*6)+(4*8)+(3*9)+(2*8)+(1*4)=176
176 % 10 = 6
So 73689-84-6 is a valid CAS Registry Number.