Carbazoles reactions

Although widely used, colorimetric methods for determining total ur-onic acid and hexosamine are now regarded as providing, at best, only semi-quantitative estimates of heparin.42 Colorimetric reactions in a strong acid, such as the carbazole reaction for the uronic acids48 and the Morgan-Elson reaction for the hexosamines,49 are not specific for hepa-... 

Bitter T, Muir HM (1962) A modified uronic acid carbazole reaction. Anal Biochem 4 330-334... 

Uronic acids were traditionally measured by the carbazole reaction. In this procedure, sugars were treated with concentrated sulfuric or hydrochloric acid to yield products that reacted with carbazole. For example, Dische (1947) used carbazole for the determination of uronic acid in solutions of sulfuric acid, but the method was subject to interference from neutral sugars that were also present in the solution. The... 

Gregory, J.D. 1960. The effect of borate on the carbazole reaction. Arch. Biochem. Biophvs. 89 157-159. 

B30. Bowness, J. M., Application of the carbazole reaction to the estimation of glucmonic acid and glucose in some acidic polysaccharides and in urine. Biochem. J. 67, 295 (1957). 

Af-vinyl carbazole, reaction type 212 vinyl chloride, reaction type 212 vinyl ester, reaction type 212 vinyl ether, reaction type 212 vinyl fluoride, reaction type 212 vinylidene, reaction type 212 chloride At-vinylpyrrolidone, reaction type 212 virus, tobacco necrosis, crystal structure 166... 

The formation of colored products by the reaction of sugars and phenols in the presence of strong acids has been mentioned previously as a qualitative test for carbohydrates. Carbazole or anthrone may be used instead of a phenol. Methods employing orcinol (3,5-dihydroxy toluene) and carbazole have been described in detail 31). Dische 32) described a modified carbazole reaction for determining ketohexoses, ketopentoses, trioses, and glycolic aldehyde as well as a method for determining heptoses. 

Camphorquinone, 77 Carbazole reaction, 9 Carbinol, o-aminophenyl methyl, 55 benzyl isopropyl, 54 phenyl ethyl, 54 phenyl methyl, 44, 54 phenyl ra-propyl, 54 Carone, 75 Carveol, dihydro-, 73 Carvone, 71, 72 Catechol, 39, 42 4-chloro-, 42... 

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