Results 171 to 180 of about 18,964 (224)

Citral a fragrance allergen and irritant

Contact Dermatitis, 2003
Citral is a well known contact allergen and a contact irritant. Routine patch testing in the past may have been restricted because of possible irritant (IR) patch test responses. 586 consecutive patients, with hand eczema, were patch tested with a selection of fragrances including citral 2% petrolatum and the European standard series.
Heydorn, S, Menné, T, Andersen, Klaus Ejner, Bruze, M, Svedman, C, White, I R, Basketter, D A   +6 more
openaire   +3 more sources

Zur Kenntnis des Citrals

Berichte der deutschen chemischen Gesellschaft, 1907
Gemeinschaftlich mit Langheld1) hat der eine von uns das technische Citral auf sein Verhalten gegen Ozon untersucht. Leitet man in den oligen Aldehyd ohne Losungsmittel Ozon ein, so entsteht ein Sirup, der nach den Resultaten der Analyse durch Anlagerung von 4 Atomen Sauerstoff an 1 Mol. Citral entstanden zu sein scheint.
C. Harries, Alfred Himmelmann
openaire   +1 more source

Synthesis of rosefuran from citral

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1982
The action of pyridinesulfotrioxide causes the conversion of the morpholine derivative of citral to rosefuran.
I. M. Zaks, A. M. Moiseenkov
openaire   +1 more source

Production of citral from geraniol

Journal of Chromatography A, 1977
Abstract The preparation of porous-layer open-tubular columns for gas—liquid chromatography with graphitized thermal carbon black as a solid support and a polar stationary phase is described. The application of these columns is demonstrated by an example.
Arpino, P, Vidal-Madjar, C, Guiochon, G, Békássy, S   +3 more
openaire   +2 more sources

Biosynthetic relationship of citral-trans and citral-cis in cymbopogon flexuosus (lemongrass)

Phytochemistry, 1985
Abstract Use of [ 14 C, 3 H]-labelled precursors revealed that leaf blades of Cymbopogon flexuosus converted geraniol (3,7-dimethylocta- trans -2,6-diene-1-ol) into citral- trans with loss of pro-(1 S ) hydrogen whereas nerol lost the pro-(1 R ) hydrogen while being converted into citral- cis . Secondly, the citral- trans is converted into citral-
openaire   +1 more source

Cyclodimerization of a citral dienamine

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1991
The dienamine (a mixture of isomers) obtained from citral and diethylamine is converted to a mixture of citral anhydro cyclodimers by the action of weak proton-donor agents. The principal reaction product corresponds to [4 + 2]-cycloaddition of 1-diethylamino-7-methyl-3-methylene-1,6-octadiene (the minor component in the starting dienamine) to the ...
A. G. Nigmatov, �. P. Serebryakov
openaire   +1 more source

The hemolytic activity of citral--II. Glutathione depletion in citral treated erythrocytes.

Biochemical pharmacology, 1985
The role of glutathione in citral induced hemolysis was investigated. The concentration of intracellular glutathione diminished in citral treated erythrocytes. GSH disappeared before hemolysis started. Glucose inhibited citral induced hemolysis and restored the depleted cellular stores of GSH.
R, Segal, I, Milo-Goldzweig
openaire   +1 more source

Carvacrol, citral and α-terpineol essential oil incorporated biodegradable films for functional active packaging of Pacific white shrimp

Food Chemistry, 2021
Nathdanai Harnkarnsujarit
exaly  

citral, n.

2023
openaire   +1 more source

Ethyl citral

Food and Cosmetics Toxicology, 1978
openaire   +2 more sources