Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Pauly’s reagent

Most of the thiazoles studied absorb in the ultraviolet above 254 nm, and the best detection for these compounds is an ultraviolet lamp (with plates containing a fluorescent indicator). Other indicator systems also exist, among which 5% phosphomolybdic acid in ethanol, diazotized sulfanilic acid or Pauly s reagent (Dragendorff s reagent for arylthiazoles), sulfuric anisaldehyde, and vanillin sulfuric acid followed by Dragendorff s reagent develop alkylthiazoles. Iodine vapor is also a useful wide-spectrum indicator. [Pg.362]

Fast blue salt B, fast blue salt BB, fast black salt K, diazotized sulfanilic acid (Pauly s reagent), diazotized sulfanilamide or 4-nitroaniline... [Pg.31]

Phenols (capable of coupling) Fast blue salt B, fast blue salt BB, fast black salt K, diazotized sulfanilic acid (Pauly s reagent) diazotized sulfanilamide or 4-nitroaniline Intensely colored azo dyes are formed. Catecholamines [20, 3S], imidazoles [21] and amines capable of coupling also react. [3, 17]... [Pg.33]

TLC Color reactions with Millon s and Pauly s reagents ... [Pg.166]

The tripeptide was purified by Sephadex GIO filtration followed by silica-gel chromatography. The pure material did not react with ninhydrin because of the presence of N -terminal pyroglutamic acid. After silica-gel thin layer chromatography in several solvent systems, the product gave a single spot when detected with Pauly s reagent with overall yield of 13%. [Pg.2196]

Azo coupling occurs on the imidazole ring of the amino acid histidine in the colour test for proteins with Pauly s reagent. [Pg.169]

Pauli s reagent Laboratory reagent Sodium diazobenzene sulfate... [Pg.268]

Ninhydrin Pauly s reagent. Violet pink Pink Grey pink Pink Grey pink Orange red Brown pink Orange red... [Pg.249]

See other pages where Pauly’s reagent is mentioned: [Pg.208]    [Pg.491]    [Pg.943]    [Pg.969]    [Pg.714]    [Pg.362]    [Pg.795]    [Pg.714]    [Pg.2195]    [Pg.283]    [Pg.1150]    [Pg.1183]    [Pg.396]    [Pg.714]    [Pg.259]    [Pg.250]    [Pg.464]    [Pg.491]    [Pg.1728]    [Pg.1750]    [Pg.1778]    [Pg.590]    [Pg.865]    [Pg.166]    [Pg.1078]    [Pg.1111]    [Pg.251]    [Pg.153]   
See also in sourсe #XX -- [ Pg.50 ]

See also in sourсe #XX -- [ Pg.369 ]

See also in sourсe #XX -- [ Pg.396 ]

See also in sourсe #XX -- [ Pg.17 , Pg.396 ]

See also in sourсe #XX -- [ Pg.17 , Pg.396 ]



SEARCH



Pauly

Pauly reagent

© 2024 chempedia.info