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4H-1-Benzopyran-4-one, 2-methyl-, phenylhydrazone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

51138-47-7

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51138-47-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 51138-47-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,1,3 and 8 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 51138-47:
(7*5)+(6*1)+(5*1)+(4*3)+(3*8)+(2*4)+(1*7)=97
97 % 10 = 7
So 51138-47-7 is a valid CAS Registry Number.

51138-47-7Upstream product

51138-47-7Downstream Products

51138-47-7Relevant academic research and scientific papers

INVESTIGATIONS IN THE CHROMONE SERIES. PART XI. REACTIONS OF METHYLCHROMONES AND METHYL-4-THIOCHROMONES WITH PHENYLHYDRAZINE

Kostka, Krzysztof,Nawrot-Modranka, Jolanta

, p. 1341 - 1348 (2007/10/02)

Reactions of 6-methyl-, 2-methyl- and 2,8-dimethylchromones, as well as of 6-methyl-, 8-methyl- and 2,8-dimethyl-4-thiochromones with phenylhydrazine have been investigated.A lack of reactivity in thiocarbonyl group in 4-thiochromone system has been established.Intermediate products of reactions have been separated, their structure established and the reaction course described.

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