89939-52-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89939-52-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,9,3 and 9 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 89939-52:
(7*8)+(6*9)+(5*9)+(4*3)+(3*9)+(2*5)+(1*2)=206
206 % 10 = 6
So 89939-52-6 is a valid CAS Registry Number.