52331-34-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 52331-34-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,3,3 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 52331-34:
(7*5)+(6*2)+(5*3)+(4*3)+(3*1)+(2*3)+(1*4)=87
87 % 10 = 7
So 52331-34-7 is a valid CAS Registry Number.
52331-34-7Relevant academic research and scientific papers
Synthesis and reactions of 4-sulpho-2,3,5,6-tetrafluorobenzoic acid
Fielding, H. C.,Shirley, I. M.
, p. 15 - 31 (2007/10/02)
4-Sulpho-2,3,5,6-tetrafluorobenzoic acid (I) has been synthesised from pentafluorobenzoic acid via the oxidation of 4-mercapto-tetrafluorobenzoic acid.Reaction of I with DMF/SOCl2 gave 1,4-ClC6F4COCl (IIA) which was converted to 1,4-ClC6F4COF (IIB) by flu
