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87743-15-5

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87743-15-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87743-15-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,7,4 and 3 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 87743-15:
(7*8)+(6*7)+(5*7)+(4*4)+(3*3)+(2*1)+(1*5)=165
165 % 10 = 5
So 87743-15-5 is a valid CAS Registry Number.

87743-15-5Relevant articles and documents

A convenient synthetic route to 2,4,6-tris(chlorosulfonyl)- and 2,4,6-tris(fluorosulfonyl)phenol, aniline and chlorobenzene

Boiko, Vladimir N.,Filatov, Andrey A.,Yagupolskii, Yurii L.,Tyrra, Wieland,Naumann, Dieter,Pantenburg, Ingo,Fischer, Hendrik T.M.,Schulz, Frank

experimental part, p. 1219 - 1226 (2011/11/30)

Convenient and preparative synthetic procedures of 2,4,6- tris(chlorosulfonyl)- and 2,4,6-tris(fluorosulfonyl)phenol, -chlorobenzene and -aniline have been elaborated. Chlorine exchange for fluorine by KF interaction on 2,4,6-tris(chlorosulfonyl)aniline and especially 2,4,6-tris(chlorosulfonyl) phenol proceeds easily and selectively under anhydrous conditions in dioxane. Unlike, 2,4,6-tris(chlorosulfonyl)chlorobenzene transformation requires the presence of water. On the basis of 2,4,6-tris(fluorosulfonyl)phenol and some of its salts, XRD measurements demonstrated the structural similarity to picric acid and its derivatives in the solid state.

ANILINE-2,4,6-TRISULPHONYLCHLORIDE AND DARIVED SULPHONAMIDES

Booth,Gerald

, p. 659 - 662 (2007/10/02)

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