69658-72-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69658-72-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,6,5 and 8 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 69658-72:
(7*6)+(6*9)+(5*6)+(4*5)+(3*8)+(2*7)+(1*2)=186
186 % 10 = 6
So 69658-72-6 is a valid CAS Registry Number.