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84274-88-4

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84274-88-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 84274-88-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,2,7 and 4 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 84274-88:
(7*8)+(6*4)+(5*2)+(4*7)+(3*4)+(2*8)+(1*8)=154
154 % 10 = 4
So 84274-88-4 is a valid CAS Registry Number.

84274-88-4Downstream Products

84274-88-4Relevant articles and documents

Synthesis and Reactivity of N',N'-Disubstituted N-arenesulfonamides

Himbert, Gerhard,Schwickerath, Willi

, p. 2105 - 2118 (2007/10/02)

The synthesis of the amidino azides 3a-k mentioned in the title can be performed by direct chloride/azide exchange of the correspondingly substituted chlorides 1 or by nitrosation of the corresponding hydrazine derivatives 2.The azides 3 show no tendency, to isomerize to the valence tautomeric 5-amino-1-(arylsulfonyl)tetrazoles 4. - The azides 3 react with triphenylphosphane under nitrogen evolution to give the iminophosphoranes 5, while with methylene-active compounds the corresponding diazo compounds and the guanidines 6 are formed.The amidino azides add smoothly to the ynamines 7 to furnish the triazoles 8 which, depending on the substituents, isomerize partly or completely to yield the diazoamidines 9.

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