The Benzidine Rearrangement1". J. Phys. Chem. 69: 30-40. doi:10.1021/j100885a008. (CS1 errors: missing title, Articles with ...

Schwenecke, H.; Mayer, D. (2005). "Benzidine and Benzidine Derivatives". Ullmanns Encyclopedia of Industrial Chemistry. ... Because it is structurally similar to benzidine, a known carcinogen, it is believed that it may share a similar mechanism in ... This intermediate undergoes the benzidine rearrangement to afford 3,3-dichlorobenzidine. Aqueous solutions of 3,3- ...

Schwenecke, H.; Mayer, D. (2005). "Benzidine and Benzidine Derivatives". Ullmanns Encyclopedia of Industrial Chemistry. ... Benzidine gives a blue coloration in the presence of ferricyanide. Iron(II) sulfate added to a solution of cyanide, such as the ...

Also in 1945, Dewar devised the then novel notion of a π complex, which he proposed as an intermediate in the benzidine ... Dewar, M. J. S. (1945). "Mechanism of the Benzidine and Related Rearrangements". Nature. 156 (3974): 784. Bibcode:1945Natur.156 ...

Accordingly, the production of benzidine azo dyes was discontinued in the 1980s in many western countries. Certain azo dyes ... Azo dyes derived from benzidine are carcinogens; exposure to them has classically been associated with bladder cancer. ...

Peroxidase localization in leukocytes has been studied throughout the 20th century using staining agents such as benzidine ... Kaplow LS (August 1965). "Brief Report: Simplified Myeloperoxidase Stain Using Benzidine Dihydrochloride". Blood. 26 (2): 215-9 ...

Mancuso, Thomas F.; El-Attar, Anas A. (1967). "Cohort Study of Workers Exposed to Betanaphthylamine and Benzidine". Journal of ...

Cerniglia CE, Freeman JP, Franklin W, Pack LD (1982). "Metabolism of benzidine and benzidine-congener based dyes by human, ... "Summary of the National Toxicology Program benzidine dye initiative". Environ Health Perspect. 102 (supp 2): 63-78. doi:10.1289 ...

Chung K-T; Chen S-C; Claxton LD (2006). "Review of the Salmonella typhimurium mutagenicity of benzidine, benzidine analogues, ... Chung K-T; Chen S-C; Wong TY; Li YS; Wei CI; Chou MW (2000). "Mutagenicity studies of benzidine and its analogs: Structure- ... On that evidence, it has been used as a replacement for carcinogenic compounds such as benzidine and o-phenylenediamine. Sigma ... "TMB Substrate Solution". Holland VR; Saunders BC; Rose FL; Walpole AL (1974). "A safer substitute for benzidine in the ...

A variety of benzidine derivatives are used in dyes and polymers. Research into biphenyl liquid crystal candidates mainly ...

Here the two binding sites are a benzidine and a biphenol unit; the cationic ring typically prefers staying over the benzidine ... ring, but moves over to the biphenol group when the benzidine gets protonated at low pH or if it gets electrochemically ...

It is positive in the benzidine test and weakly positive in methyl red test. It exhibits clear hemolysis on ovine blood agar ...

It also tests positive for acetoin production, arginine, dihydrolase, benzidine, catalase, hemolysis, and lipase; it tests ...

Other units, such as benzidine derivatives, viologens, and fullerenes, are useful in supramolecular electrochemical devices. ...

It is prepared by azo coupling of the bis(diazonium) derivative of benzidine with naphthionic acid. Congo blue, however, is in ... Once of economic significance, Congo red has fallen into disuse as have all benzidine-derived dyes, owing to their carcinogenic ...

MOCA is an aromatic amine which is structurally similar to benzidine, a known human bladder carcinogen. MOCA has been shown to ...

Prival, M. J.; Bell, S. J.; Mitchell, V. D.; Peiperl, M. D.; Vaughan, V. L. (1984). "Mutagenicity of benzidine and benzidine- ...

Quantum chemical calculations predict that it undergoes a nearly barrierless reaction akin to the benzidine rearrangement. The ...

... particularly in opposing the use of benzidine-based dyes. By the start of the 1980s, membership had fallen to 56,843 due to ...

1904 - A test for the presence of blood by a wet-chemical method using benzidine became known. approx. 1920 - Viennese chemist ...

2-Tolidine can be produced by many benzidine rearrangement from a hydrazine derivative derived from 2-nitrotoluene. (CH3C6H4) ...

Upon treatment with the bis(diazonium) derivative of benzidine, 1-aminonaphthalene-4-sulfonic acid gives Congo red. It is ...

... it is a bifunctional compound derived via the benzidine rearrangement from o-anisidine. o-Dianisidine is a precursor to some ...

One study found that Han Chinese dye-industry workers exposed to benzidine were at higher risk for developing bladder cancer if ... The speculated mechanism for this increased cancer risk involved increased glucuronidation of benzidine by the mutant UGT2B7 ... followed by cleavage of the glucuronidated benzidine at urine pH levels, releasing higher concentrations of benzidine in the ... polymorphism with bladder cancer in benzidine-exposed workers in China". Toxicological Sciences. 85 (1): 502-6. doi:10.1093/ ...

Hans Schwenecke, Dieter Mayer "Benzidine and Benzidine Derivatives" in Ullmanns Encyclopedia of Industrial Chemistry, 2005, ... 3,3′-Diaminobenzidine (DAB) is an organic compound with the formula (C6H3(NH2)2)2. This derivative of benzidine is a precursor ... An alternate synthesis route involves the diacylation of benzidine with acetic anhydride under basic conditions: (NH2)C6H4C6H4( ...

... of the population favoring the benzidine station. However, on addition of trifluoroacetic acid, the benzidine nitrogen atoms ... The same effect is obtained by electrochemical oxidation (forming the benzidine radical ion) and significantly both processes ... one biphenol and one benzidine unit. In solution at room temperature NMR spectroscopy reveals that the bead shuttles at a rate ...

The risk from aromatic amines, particularly benzidine and a-and ß-naphthylamine, was not well-established until the 1950s. In ...

The formation of these pigments involves the reaction of diazotized aromatic diamines (derivatives of benzidine) with coupling ...

Mechanism of the benzidine and Wallach rearrangements based on direct observation of dicationic reaction intermediates and ... the benzidine rearrangement and the Hofmann-Martius rearrangement. In the first part of the reaction, two equivalents of acid ...

This car was washed a few days after Del Castillos disappearance, but it tested positive for blood in luminol and benzidine ...