6471-78-9 Usage
Chemical Properties
Light Grey Solid
Uses
An intermediate of azo dyes. Mutagenic.
Check Digit Verification of cas no
The CAS Registry Mumber 6471-78-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,7 and 1 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 6471-78:
(6*6)+(5*4)+(4*7)+(3*1)+(2*7)+(1*8)=109
109 % 10 = 9
So 6471-78-9 is a valid CAS Registry Number.
InChI:InChI=1/C8H11NO4S/c1-5-3-6(9)7(13-2)4-8(5)14(10,11)12/h3-4H,9H2,1-2H3,(H,10,11,12)
6471-78-9Relevant academic research and scientific papers
Process for the preparation of aminoarylsulphonic acids in sulfolene solvent
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, (2008/06/13)
Aromatic aminosulphonic acids which have a reduced content of discoloring by-products are obtained when aromatic amines are reacted with a sulphonating agent in a reaction medium at least some of which consists of tetramethylene sulphone.
