M-phenylenediamine, 4-Nitro

Nitro-1,3-phenylenediamine. See 4-Nitro-m-phenylenediamine 4-Nitro-m-phenylenediamine CAS 5131-58-8 EINECS/ELINCS 225-876-3 Synonyms 1,3-Benzenediamine, 4-nitro- Cl 76030 2,4-Diaminonitrobenzene 4-Nitro-1,3-di ami nobenzene 4-Nitro-1,3-phenylenediamine m-Phenylenediamine, 4-nitro-Classification Substituted aromatic amine Empiricai C6H7N3O2 Properties M.w. 153.14 Toxicology LD50 (oral, rat) 4500 mg/kg, (oral, mouse) 500 mg/kg mod. toxic by ing. mutagen TSCA listed... 

Nitro-5-glyceryl methylaniline 3-Nitro-p-hydroxyethylaminophenol 2-Nitro-N-hydroxyethyl-p-anisidine 2-Nitro-p-phenylenediamine 4-Nitro-m-phenylenediamine... 

Naphthalenediol 2,7-Naphthalenediol 4-Nitro-m-phenylenediamine 4-Nitro-o-phenylenediamine 4-Nitro-o-phenylenediamine HCI Toluene-2,5-diamine sulfate intermediate, oxo alcohols C14-16 alpha olefin intermediate, oxo chemicals Propylene... 

Nitro-m-phenylenediamine Rodol LY 225-878-4 Arcosolv PNB Butoxypropanol Dowanol PnB Solvenon PnB 225-895-7 Amyl phenylacetate 225-896-2 Aliquat 336 Aliquat 336-PTC... 

Nitro-p-phenylenediamine 4-Nitro-m-phenylenediamine 4-N itro-o-pheny lenediam i ne C6H7N3O2 2CIH 4-Nitro-o-phenylenediamine HCI C6H7Na04... 

Shimoishi [ 555 ] determined selenium by gas chromatography with electron capture detection. To 50-100 ml seawater was added 5 ml concentrated hydrochloric acid and 2 ml 4-nitro-o-phenylenediamine (1%) and, after 2 hours, the product formed was extracted into 1 ml of toluene. The extract was washed with 2 ml of 7.5 M hydrochloric acid, then a sample (5 pi) was injected into a glass gas-liquid chromatography column (lm x 4 mm) packed with 15% of SE-30 on Chromosorb W (60-80 mesh) and operated at 200 °C with nitrogen (53 ml/min) as carrier gas. There is no interference from other substances present in seawater. The detection limit is 5 ng/1 with 200 ml samples, and the precision at a Se level of 0.025 pg/1 is 6%. 

Aminoirinitrophenylmefhylnitramine. See N-Methyl-N-nitro-2,4,6-trinitro-m-phenylenedi-amine, under Methylphenylenediamines 3-Amino-2,4,6-trinitrophenyInitramine. See N1 -Nitro-2,4,6-m-phenylenediamine, under Phenyl-enedi amines... 

Nitro-2,4,6-m-phenylenediamine, under Phenyl-enedi amines... 

The Element.—Analytical methods for the determination of trace quantities of selenium in two very different materials have been described. The first275 employs the use of flameless atomic absorption spectrophotometry for the direct determination of selenium (and Pb, Bi, Se, Te, and Tl) at p.p.m. levels in high-temperature alloys. The second method276 is able to determine the selenium content of plant material at levels as low as 0.005 fxg g The method involves the reaction of SeIV with 4-nitro-o-phenylenediamine to form 5-nitropiaselenol, which may be detected by means of a gas chromatograph. 

Aggarwal SK, Kinter M, Herold DA. 1992. Determination of selenium in urine by isotope dilution gas chromatography-mass spectrometry using 4-nitro-o-phenylenediamine, 3,5-dibromo-o-phenylenediamine, and 4-trifluoromethyl-o-phenylenediamine as derivatizing reagents. Anal Biochem 202(2) 367-374. 

Quinoxaline-2,3-diones are conveniently prepared by boiling a mixture of the o-phenylenediamine with oxalic acid dihydrate in 4 M hydrochloric acid. Alternatively a mixture of the diamine is refluxed with excess diethyl oxalate under an air condenser so that the ethyl alcohol formed by intermolecular condensation is allowed to escape (Scheme 19). 6-Nitroquinoxaline-2,3-dione has been prepared by fusion of 4-nitro-o-phenylenediamine with oxalic acid at 160° in this preparation diethyl... 

Rodol 4J. See 4-Nitro-o-phenylenediamine Rodol 1SN. See 1,5-Naphthalenediol Rodol 23N. See 2,3-Naphthalenediol Rodol 26PYR. See 2,6-Diaminopyridine Rodol 27N. See 2,7-Naphthalenediol Rodol BA. See 4-Methoxy-m-phenylenediamine Rodol BLFX. See Toluene-2,5-diamine sulfate Rodol Brown 2R. See 2-Nitro-p-phenylenediamine Rodol Brown SO. See 2-Chloro-p-phenylenediamine sulfate Rodol C. See Pyrocatechol Rodol CRS. See 4-Chlororesorcinol Rodol D. See p-Phenylenediamine Rodol DEMAP. See N,N-Diethyl-m-aminophenol Rodol DEMAPS. See N,N-Diethyl-m-aminophenol sulfate... 

Yellow needles from MogCO.Aq. M.p. 180° (188°). Spar. soL cold EtOH, hot HjO. Cone, caustic alkalis —> 2 4-dinitrophenol. (NHg)gS —> 4-nitro-o-phenylenediamine + 2-nitro-p-phenylenediamine. Forms no salts. Acetyl see 2 4-Dinitroacetanilide. Diacetyl m.p. 112-13°. 

The following compounds are reported to have been deaminated by decomposing their stabilized diazonijim salts aniline 8 o-, m-, and p-toluidine 6 o-, m-, and p-anisidine 6 o-, m-, and p-nitroaniline 8 2-methoxy-4-nitro-5-aminotoluene 101 m-phenylenediamine 8 wi-tolyl-enediamine 8 p-aminophenol 8 benzidine 8 a- and /3-naphthylamine. . ) ... 

The homologous 1,2,4-toluylenediamine is prepared in the same manner as m-phenylenediamine. The procedure given above is applicable to the reduction of 2,4-dinitrochlorobenzene, 2,4-dinitroanisole, p-nitroanisole, and other insoluble nitro compounds. 

Cl 76070. See 2-Nitro-p-phenylenediamine Cl 76085. See N-Phenyl-p-phenylenediamine sulfate N-Phenyl-p-phenylenediamine Cl 76500. See Pyrocatechol Cl 76505. See Resorcinol Cl 76510. See 4-Chlororesorcinol Cl 76515. See Pyrogallol Cl 76520. See o-Aminophenol Cl 76530. See 2-Amino-4-nitrophenol Cl 76535. See 2-Amino-5-nitrophenol Cl 76545. See m-Aminophenol m-Aminophenol HCI m-Aminophenol sulfate Cl 76550. See p-Aminophenol sulfate p-Aminophenol... 

Br , I , phosphate, and sulfate as TBA salts (100 equivalents) from left to right and (b) color changes of 4-nitro-l,2-phenylenediamine 20, alizarin 21, and 2,2 -bis(3-hydroxy-l,4-naphthoquinone) 22 in CH2CI2 (1 x lO M) by treatment with 100 equivalents of anions in the form of their TBA salts. (Redrawn from Ref. 54. Wiley-VCH, 2001.)... 

---