399550-23-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 399550-23-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,9,9,5,5 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 399550-23:
(8*3)+(7*9)+(6*9)+(5*5)+(4*5)+(3*0)+(2*2)+(1*3)=193
193 % 10 = 3
So 399550-23-3 is a valid CAS Registry Number.