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2,4,6-Trimethyl-benzenesulfonic acid 2-amino-4-methyl-phenyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

81256-18-0

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81256-18-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81256-18-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,2,5 and 6 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 81256-18:
(7*8)+(6*1)+(5*2)+(4*5)+(3*6)+(2*1)+(1*8)=120
120 % 10 = 0
So 81256-18-0 is a valid CAS Registry Number.

81256-18-0Relevant academic research and scientific papers

Substitution at Tetracoordinate Sulfur(VI). Rearrangement of 2-Aminoaryl Arenesulfonates to N-(2-Hydroxyaryl)arenesulfonamides

Andersen, Kenneth K.,Gowda, Gopala,Jewell, Linda,McGraw, Phillip,Phillips, Brian T.

, p. 1884 - 1889 (2007/10/02)

A series of eight 2-aminoaryl arenesulfonates upon treatment by strong bases rearranged intramolecularly to their corresponding N-(2-hydroxyaryl)arenesulfonamides as did the related tosylates derived from 2-amino-3-hydroxypyridine, 1-amino-2-naphthol, and

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