Results 161 to 170 of about 7,328 (210)
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Food Additives and Contaminants, 2004
Nitrofuran antibiotics were previously used in animal healthcare but are now prohibited. Semicarbazide is a breakdown product of 5-nitrofurazone and protein-bound semicarbazide is used as a marker residue for the illegal use of 5-nitrofurazone. However, the presence of the prohibited semicarbazide has been reported in some food items of animal origin ...
K Peltonen
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Nitrofuran antibiotics were previously used in animal healthcare but are now prohibited. Semicarbazide is a breakdown product of 5-nitrofurazone and protein-bound semicarbazide is used as a marker residue for the illegal use of 5-nitrofurazone. However, the presence of the prohibited semicarbazide has been reported in some food items of animal origin ...
K Peltonen
exaly +3 more sources
Recueil des Travaux Chimiques des Pays-Bas, 1943
AbstractSemicarbazide is the common but incorrect name for carbamic acid hydrazide: magnified imageThe atom are numbered as indicated.Semicarbazide reacts readily with aldehydes and ketones, and this reaction is often used to separate those compounds from mixtures or to identify them.
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AbstractSemicarbazide is the common but incorrect name for carbamic acid hydrazide: magnified imageThe atom are numbered as indicated.Semicarbazide reacts readily with aldehydes and ketones, and this reaction is often used to separate those compounds from mixtures or to identify them.
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Potentiation of the Action of Histamine by Semicarbazide
Nature, 1951ZELLER1 has shown that semicarbazide inhibits histaminase. We have found that this substance, added to Tyrode solution, potentiates the action of histamine on the guinea pig's ileum. The lowest concentration at which semicarbazide clearly potentiates histamine is of the order of 10−9.
J L, MONGAR, H O, SCHILD
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Komplexverbindungen der Semicarbazide
Zeitschrift für anorganische und allgemeine Chemie, 1936AbstractDie Semicarbazide bilden Komplexverbindungen, in welchen sie zwei Koordinationsstellen besetzen. Das Metall ist an das Sauerstoffatom und die Hydrazingruppe gebunden. Von Nickel wurden außer Verbindungen von den Typen [NiSem2] und [NiSem3]X3 auch rote, innerkomplexe Verbindungen erhalten, welche sich von dem Semicarbazid durch Ersatz eines ...
K. A. Jensen, E. Rancke‐Madsen
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Synthesis and cyclisation of 1,4-disubstituted semicarbazides
Natural Product Research, 2010Semicarbazides, besides possessing medicinal properties, also find wide applications in agriculture and industry. We report in this article the synthesis of the four 1,4-disubstituted semicarbazides: 1-cinnamoyl-4-phenyl semicarbazide (1), 1-oleyl-4-phenyl semicarbazides (2), 1,1',1''-tricitryl-4,4',4''-triphenyl semicarbazide (3) and 1-benzoyl-4 ...
Syeda Farina Asghar +3 more
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Menthone Semicarbazides and Thiosemicarbazides as Anticonvulsant Agents
Medicinal Chemistry, 2010A series of novel (+/-) 3-menthone semi carbazides (1-7) and thiosemicarbazides synthesized using an appropriate synthetic route and characterized by thin layer chromatography and spectral analysis. The anticonvulsant activity of synthesized compounds was established after intraperitoneal administration in three seizure models in mice which include ...
Jainendra, Jain +3 more
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A New Ferroelectric: Semicarbazide Hydrochloride
Applied Physics Letters, 1972Dielectric measurements on a single crystal of semicarbazide hydrochloride show three maxima at temperatures of −230, 19, and 21 °C. Initial data for the highest peak clearly suggest a ferroelectric-paraelectric transition with a Curie temperature of 21 °C. In the paraelectric region the Curie law is well followed.
J.-C. Rocaries, P. Boldrini
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Natural occurrence of semicarbazide in heather honey
Food Additives & Contaminants: Part ARegulatory bodies aim to protect consumers from harmful substances. The use of certain antibiotics is prohibited in food-producing animals in the EU due to their potential detrimental effects on humans. Among these are nitrofuran antibiotics, which degrade rapidly so that their metabolites are used as markers in screening for their illegal use. The use
Linn Fenna Groeneveld +5 more
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A Crystalline Compound of Semicarbazide and Semicarbazide Hydrochloride
Journal of the American Chemical Society, 1937H. L. Haller, F. B. LaForge
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