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97311-36-9

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97311-36-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 97311-36-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,3,1 and 1 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 97311-36:
(7*9)+(6*7)+(5*3)+(4*1)+(3*1)+(2*3)+(1*6)=139
139 % 10 = 9
So 97311-36-9 is a valid CAS Registry Number.

97311-36-9Relevant articles and documents

Studies in spiro heterocycles. Part 4(1): Investigation of the reactions of fluorinated 3-aroylmethylene-indol-2-ones with hydrazine and phenylhydrazine and synthesis of spiro [indole-3,3'-pyrazol]-2-ones.

Joshi,Jain,Garg

, p. 21 - 22 (2007/10/02)

Reactions of various 3-aroylmethylene-indol-2-ones with hydrazine and phenylhydrazine under exactly similar conditions have been carried out. The reaction with phenylhydrazine has not been investigated earlier. It was found that although the reaction with hydrazine hydrate afforded a spiro derivative viz., spiro[3H-indole-3,3'-(3H)pyrazol]-2(1H)-one, that with phenylhydrazine yielded simply a hydrazone derivative. Representative spiro compounds have been screened for antifertility activity but none was found active at a dose of 10 mg/kg in adult female rats.

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