Results 71 to 80 of about 5,509 (177)

Scientific Opinion on nitrofurans and their metabolites in food

open access: yesEFSA Journal, 2015
Nitrofurans are antimicrobial agents not authorised for use in food‐producing animals in the European Union. Nitrofurans are rapidly metabolised, occurring in animal tissues as protein‐bound metabolites.
EFSA Panel on Contaminants in the Food Chain (CONTAM)
doaj   +1 more source

Synthesis and in Vitro Antimicrobial Activity of Some Pyrazolyl-1-carboxamide Derivatives

open access: yesMolecules, 2011
A series of 3,5-disubstituted pyrazole-1-carboxamides were obtained by treatment of chalcones with semicarbazide hydrochloride in dioxane containing sodium acetate/acetic acid as a buffer solution.
Essam Mohamed Sharshira   +1 more
doaj   +1 more source

Crystal structures of crotonaldehyde semicarbazone and crotonaldehyde thiosemicarbazone from X-ray powder diffraction data

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
Crotonaldehyde semicarbazone {systematic name: (E)-2-[(E)-but-2-en-1-ylidene]hydrazinecarboxamide}, C5H9N3O, (I), and crotonaldehyde thiosemicarbazone {systematic name: (E)-2-[(E)-but-2-en-1-yldene]hydrazinecarbothioamide}, C5H9N3S, (II), show the same E
Atef Arfan, Mwaffak Rukiah
doaj   +1 more source

Research Progress on the Generation, Metabolism and Control Methods of Semicarbazide in Aquatic Products

open access: yesShipin gongye ke-ji
Semicarbazide (SEM) is widely monitored as a metabolite of the nitrofuran antibiotic nitrofurazone (NFZ). In recent years, frequent occurrences of excessive SEM residues in aquatic products have seriously hindered the export trade and sustainable ...
Honglin ZHANG   +7 more
doaj   +1 more source

Methyl-substituted Semicarbazides. [PDF]

open access: yesActa Chemica Scandinavica, 1977
K. A. Jensen   +6 more
openaire   +1 more source

Synthesis and structure of a 1:1 1-phenyl-semicarbazide-1-phenyl-pyrazolidin-3-one cocrystal. [PDF]

open access: yesActa Crystallogr E Crystallogr Commun
Muthu S   +3 more
europepmc   +1 more source

The Reaction of Semicarbazide with Collagen

open access: yesJournal of Pharmacy and Pharmacology, 1963
openaire   +2 more sources

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