89955-61-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89955-61-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,9,5 and 5 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 89955-61:
(7*8)+(6*9)+(5*9)+(4*5)+(3*5)+(2*6)+(1*1)=203
203 % 10 = 3
So 89955-61-3 is a valid CAS Registry Number.