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3540-88-3

Trans-chalcone-semicarbazon is a chemical compound with the molecular formula C10H12N4O. It is derived from the condensation of trans-chalcone, an open-chain isomer of flavanone, with semicarbazide, a hydrazine derivative. trans-Chalcon-semicarbazon is known for its potential applications in the synthesis of various heterocyclic compounds and as a precursor in the preparation of pharmaceuticals and agrochemicals. It is also used in the development of analytical methods for the detection and quantification of certain substances. The compound's structure and properties make it a subject of interest in organic chemistry and related fields.

3540-88-3

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3540-88-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3540-88-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,5,4 and 0 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 3540-88:
(6*3)+(5*5)+(4*4)+(3*0)+(2*8)+(1*8)=83
83 % 10 = 3
So 3540-88-3 is a valid CAS Registry Number.

3540-88-3Upstream product

3540-88-3Downstream Products

3540-88-3Relevant articles and documents

NMR spectra of trans-chalcone oxime, semicarbazone and thiosemicarbazone and their cyclic isomers (3,5-diphenyl-2-isoxazoline and 1-substituted 3,5-diphenyl-2-pyrazolines)

Balaban,Zugravescu,Avramovici,Silhan

, p. 704 - 708 (1970)

Earlier tentatively assigned structures for trans-chalcone oxime, semicarbazone and thiosemicarbazone, resp., have been corrected by means of NMR spectra: open-chain structures have been found for the title compounds formed in the acid catalyzed reaction, whereas basic catalysts lead to intramolecular cyclization with formation of 3,5-diphenyl-2-isoxazoline and 1-substituted 3,5-diphenyl-2-pyrazolines resp. Assignments in the NMR spectra were made by comparison with those from authentic samples of trans-dypnone and its semicarbazone.

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