671822-05-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 671822-05-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,1,8,2 and 2 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 671822-05:
(8*6)+(7*7)+(6*1)+(5*8)+(4*2)+(3*2)+(2*0)+(1*5)=162
162 % 10 = 2
So 671822-05-2 is a valid CAS Registry Number.
671822-05-2Relevant academic research and scientific papers
Process for the preparation of aromatic azo-compounds
-
Page 4-5, (2008/06/13)
The present invention relates to a process for the preparation of aromatic azo-compounds, in particular 3,3′-azo-bis(6-hydroxybenzoic acid) (olsalazine) and its salts and derivatives.
