2-Chloro-p-cresol

Apart from the PAR method described above, many others are based on azo reagents. Some of these methods are very sensitive for vanadium. In this group are the pyridylazophenol derivatives [44], 2-(3,5-dibromo-2-pyridylazo)-5-dimethylaminobenzoic acid (3,5-di-Br-PAMB) (e = 5.95-10 ) [45], 5-Br-PADAP (e = 5.48-10 ) [46,46a], 2-(5-chloro-2-pyridylazo)-5-dimethylaminophenol (e = 5.55-10 ) [47], A-methylanabasine-a -azo-/ -cresol (in the presence of H2O2) [48], 5-(8-quinolylazo)-2-monoethylamine-p-cresol [49], and Sulphonitrophenol K in the presence of NH2OH (e = 5.5-10 ) [50]. 

CAS 3896-11-5 EINECS/ELINCS 223-445-4 Synonyms 2-t-Butyl-6-(5-chloro-2H-benzotriazol-2-yl)-p-cresol 2-t-Butyl-6-(5-chloro-2H-benzotriazol-2-yl)-4-methylphenol 2-(3 -t-Butyl-2 -hy-droxy-5-methylphenyl)-5-chlorobenzotriazole 2-(2 -Hydroxy-3 -t-bu-tyl-5-methylphenyl)-5-chlorobenzotriazole 2-(2-Hydroxy-3-t-butyl-5-methylphenyl)-5-chlorobenzotriazole UV Absorber 6 Classification Benzotriazole... 

Several sensitive and selective methods have been proposed recently for vanadium determination based on different chromogenic reagents, such as 1,5-dip-henylcarbohydrazine (1,5-diphenylcarbazide) in a slightly acid medium (531 nm), 2-(5-nitro-2-pyridy-lazo-)-5-(N-propyl-N-sulfopropylamino)phenol in a weakly acid medium (592 mn), 2-(2-thiazolylazo)-p-cresol in the presence of ascorbic acid (525 mn), and 6-chloro-3-hydroxy-7-methyl l-2-(2thienyl)-4H-chr-omen-4-one in a weakly acidic medium (425 mn). Also, the utilization of 4-(2-pyridylazo)-resorcinol (PAR) in the presence of hydrogen peroxide (542 mn, LOD 0.0028 p-gml"" ) and in the presence of cetyl-pyridinium chloride and ethylenediaminetetraacetic acid (600mn, LOD 3.0p.gml ) has been proposed. 

UVA 2-hydroxy-4-octyloxybenzophenone 2-hydroxy-4-methoxybenzophenone 2-(2H-benzotriazol-2-yl)-p-cresol 2-(2H-benzotriazole-2-yl)-4,6-di-tert-pentylphenol 2-(2H-benzotriazole-2-yl)-4-(1,1,3,3-tetraethylbutyl)phenol 2,4-di-tert-butyl-6-(5-chloro-2H-benzotriazole-2-yl)-phenol 2-[4,6-bis(2,4-dimethylphenyl)-1,3,5-triazin-2-yl]-5-(octyloxy) phenol ethyl-2-cyano-3,3-diphenylacrylate HAS 1,3,5-tri-azine-2,4,6-triamine, N,N [1,2-ethane-diyl-bis[[[4,6-bis[butyl-(1,2,6,6-pentamethyl-4-piperidinyl)amino]-1,3,5-triazine-2-yl] imino]-3,1 -propanediyi] bis[N ,N -dibutyl-N ,N -bis(1,2,2,6,6-pentamethyl-4-piperidinyl)- bis(2,2,6,6-tetramethyl-4-piper-idyl) sebacate 2,2,6,6-tetramethyl-4-piperidinyl stearate N,N -bisformyl-N,N -bis-(2,2,6,6-tetramethyl-4-piperidinyl)-hexamethylendiamine alkenes, C20-24-.alpha.-, polymers with maleic anhydride, reaction products with 2,2,6,6-tet-ramethyl-4-piperidinamine 1,6-hexanediamine, N, N -bis(2,2,6,6-tetramethyl-4-piperidinyl)-, polymers with 2,4-di-ohloro-6-(4-morpholinyl)-1,3,5-triazine 1,6-hexanediamine, N,N -bis(2,2,6,6-tetramethyl-4-piperidinyl)-, polymers with morpholine-2,4,6-trichloro-1,3,5-triazine reaction products, methylated Phenolic antioxidants ethylene-bis(oxyethylene)-bis(3-(5-tert-butyl-4-hydroxy-m-tolyl)-propionate) 2,6,-di-tert-butyl-4-(4,6-bis(octylthio)-1,3,5,-triazine-2-ylamino) phenol pentaerythritol tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate) 2-(1,1 -dimethylethyl)-6-[[3-(1,1 -dimethylethyl)-2-hydroxy-5-methylphenyl] methyl-4-methylphenyl acrylate isotridecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate 2,2 -ethylidenebis (4,6-di-tert-butylphenol) 2,2 -methylenebis(4-ethyl-6-tertbutylphenol) 3,5-bis(1,1-dimethyethyl)-4-hydroxy-benzenepropanoic acid, C13-15 alkyl esters phenol, 4-methyl-, reaction products with dicyclopen-tadiene and isobutene Phosphite trinonylphenol phosphite isodecyl diphenyl phosphite... 

Stabilizers UVA 2-(2H-benzotriazol-2-yl)-p-cresol phenol, 2-(5-chloro-2H-benzotriazole-2-yl)-6-(1,1 -dimethylethyl)-4-methyl- 2-(2H-benzotriazol-2-yl)-4,6-bis(1 -methyl-1 -phenylethyl)phenol isopropenyl ethinyl trimethyl piperidol (cellulose diacetate), biphenyl cellulose (UV absorber fro paper), phenylbenzimid-azole (reactive stabilizer for application in cellulosic textiles) Optical brighteners 2,2 -(2,5-thiophenediyl)bis(5-tert-butyl-benzoxazole) Mixtures an ortho-hydroxy tris-aryl-s-triazine compound+hindered hydroxybenzoate compound+hindered amine compound containing a 2,2,6,6-tetraalkylpiperidine or 2,2,6,6-tetraalkylpiperazinone radical ... 

UVA 2-hydroxy-4-octyloxybenzophenone 2-hydroxy-4-methoxybenzophenone 2,4-dihydroxybenzophenone 2,2 ,4,4 -tetrahydroxybenzophenone 2,2 -dihydroxy-4-methoxybenzophenone 2-(2H-benzotriazol-2-yl)-p-cresol 2-benzotriazol-2-yl-4,6-di-tert-butylphenol 2-(2H-benzotriazole-2-yl)-4,6-di-tert-pentylphenol 2-(2H-benzotriazole-2-yl)-4-(1,1,3,3-tetraethylbutyl)phenol 2-(2H-benzotriazol-2-yl)-4,6-bis(1 -methyl-1 -phenylethyl) phenol 2,2 -methylenebis(6-(2H-benzotriazol-2-yl)-4-1,1,3,3-tetramethylbutyl)phenol 2-(2H-benzotriazol-2-yl)-6-dodecyl-4-methylphenol, branched linear 2-(2H-benzotriazol-2-yl)-4,6-bis(1 -methyl-1 -phenylethyl) phenol 2,4-di-tert-butyl-6-(5-chloro-2H-benzotriazole-2-yl)-phenol 2-(3-sec-butyl-5-tert-butyl-2-hydroxyphenyl) benzotriazole 2-[4-[(2-hydroxy-3-(2 -ethyl)hexyl)oxy]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-hexyloxy-phenol ... 

The lUPAC rules 2 follow general custom. Two common misconceptions may be noted. It is no longer customary in Europe to assign lowest numbers to methyl substituents of simple benzene derivatives the standard rules (see Chapter 5) are applied, e,g., in 2-chloro-p-toluidine the chlorine atom is next to the NH2. There is no such radical as cresyl (from cresol) it is tolyl (pace tricresyl phosphate). 

Phenol 2,4,6-trichlorophenol p-chloro-m-cresol 2-chlorophe-nol 2,4-dichlorophenol 2,4,-dimethylphenol 2-nitrophenol 4-nitrophenol 2,4-dinitrophenol and pentachlorophenol... 

Preparation of 2 -Chloro-6 -diethylamino-3 -methylfluoran (68d). A mixture of 2-(4-diethylamino-2-hydroxybenzoyl)benzoic acid (0.1 mol), p-chloro-m-cresol (0.1 mol), and 85% sulfuric acid (150 g) was stirred at 110-120°C for 5 h, and poured into water (1500ml). The precipitate was filtered off, washed with water, and then refluxed with a mixture of toluene (500ml) and 5% aqueous sodium hydroxide (200ml) for 1 h. The toluene layer was then worked up in the same manner as above to give 2 -chloro-6 -diethylamino-3 -methylfluoran in 85% yield as a white powder, mp 235-236°C. 

Synonyms AI3-00075 Aptal Baktol Baktolan BRN 1237629 Candaseptic Caswell No. 185A CCRIS 1938 p-Chlor-/ 3-cresol Chlorocresol 4-Chlorocresol p-Chlorocresol 4-Chloro-/ 3-cresol 6-Chloro-/ 3-cresol 4-Chloro-l-hydroxy-3-methylbenzene 2-Chlorohydroxytoluene 2-Chloro-5-hydroxytoluene 4-Chloro-3-hydroxytoluene 6-Chloro-3-hydroxytoluene 4-Chloro-3-methyl-phenol /5-Chloro-3-methylphenol CMK EINECS 200-431-6 EPA pesticide chemical code 064206 3-Methyl-4-chlorophenol NSC 4146 Ottafact Parmetol Parol PCMC Peritonan Preventol CMK Raschit Raschit K Rasenanicon RCRA waste number U039 UN 2669. 

AI3-00040, see Cyclohexanol AI3-00041, see Cyclohexanone AI3-00045, see Diacetone alcohol AI3-00046, see Isophorone AI3-00050, see 1,4-Dichlorobenzene AI3-00052, see Trichloroethylene AI3-00053, see 1,2-Dichlorobenzene AI3-00054, see Acrylonitrile AI3-00072, see Hydroquinone AI3-00075, see p-Chloro-rrr-cresol AI3-00078, see 2,4-Dichlorophenol AI3-00085, see 1-Naphthylamine AI3-00100, see Nitroethane AI3-00105, see Anthracene AI3-00109, see 2-Nitropropane AI3-00111, see Nitromethane AI3-00118, see ferf-Butylbenzene AI3-00119, see Butylbenzene AI3-00121, see sec-Butylbenzene AI3-00124, see 4-Aminobiphenyl AI3-00128, see Acenaphthene AI3-00134, see Pentachlorophenol AI3-00137, see 2-Methylphenol AI3-00140, see Benzidine AI3-00142, see 2,4,6-Trichlorophenol AI3-00150, see 4-Methylphenol AI3-00154, see 4,6-Dinitro-o-cresol AI3-00262, see Dimethyl phthalate AI3-00278, see Naphthalene AI3-00283, see Di-rj-butyl phthalate AI3-00327, see Acetonitrile AI3-00329, see Diethyl phthalate AI3-00399, see Tributyl phosphate AI3-00404, see Ethyl acetate AI3-00405, see 1-Butanol AI3-00406, see Butyl acetate AI3-00407, see Ethyl formate AI3-00408, see Methyl formate AI3-00409, see Methanol AI3-00520, see Tri-ocresyl phosphate AI3-00576, see Isoamyl acetate AI3-00633, see Hexachloroethane AI3-00635, see 4-Nitrobiphenyl AI3-00698, see IV-Nitrosodiphenylamine AI3-00710, see p-Phenylenediamine AI3-00749, see Phenyl ether AI3-00790, see Phenanthrene AI3-00808, see Benzene AI3-00867, see Chrysene AI3-00987, see Thiram AI3-01021, see 4-Chlorophenyl phenyl ether AI3-01055, see 1.4-Dioxane AI3-01171, see Furfuryl alcohol AI3-01229, see 4-Methyl-2-pentanone AI3-01230, see 2-Heptanone AI3-01231, see Morpholine AI3-01236, see 2-Ethoxyethanol AI3-01238, see Acetone AI3-01239, see Nitrobenzene AI3-01240, see I idine AI3-01256, see Decahydronaphthalene AI3-01288, see ferf-Butyl alcohol AI3-01445, see Bis(2-chloroethoxy)methane AI3-01501, see 2,4-Toluene diisocyanate AI3-01506, see p,p -DDT AI3-01535, see 2,4-Dinitrophenol AI3-01537, see 2-Chloronaphthalene... 

C-07100,see2,4,5-T C-07101, see 2,4,5-Trichlorophenol C-07328, see Isoamyl alcohol C-07557, see TCDD C-08374, see Dodecane C-08380, see 2-Heptanone C-11043, see Methoxychlor C-11088, see 2,6-Dinitrotoluene C-11142, see Phenanthrene C-11160, see Thiram C-11233, see Dimethylphthalate C-14098, see 2-Methylnaphthalene C-10998, see 4-Aminobiphenyl C-11249, see Cyclohexane C-2292-52A, see Carbofuran CAF, see a-Chloroacetophenone Calmathion, see Malathion 2-Camphanone, see Camphor Camphechlor, see Toxaphene Camphochlor, see Toxaphene Camphoclor, see Toxaphene DL-Camphor, see Camphor Camphor-natural, see Camphor Camphor-synthetic, see Camphor Camphor tar, see Naphthalene Candaseptic, see p-Chloro-m-cresol Canogard, see Dichlorvos CAP, see a-Chloroacetophenone Caprolin, see Carbaryl... 

CF 2, see 1,1,1-Trichloroethane CFC 11, see Trichlorofluoromethane CFC 21, see Dichlorofluoromethane CFC 112, see 1,2-Difluorotetrachloroethane CFC 112a, see 1,1-Difluorotetrachloroethane CFC 113, see 1,1,2-Trichlorotrifluoroethane Chelen, see Chloroethane Chemform, see Methoxychlor Chemathion, see Malathion Chemical 109, see ANTU Chemical mace, see a-Chloroacetophenone Chemox PE, see 2,4-Dinitrophenol Chempenta, see Pentachlorophenol Chemphene, see Toxaphene Chemrat, see Pindone Chemsect DNOC, see 4,6-Dinitro-ocresol Chemtol, see Pentachlorophenol Chevron acetone, see Acetone Chimec NR, see 2-Bntoxyethanol Chinone, see / Qninone Chinnfnr, see Carbofuran Chipco thiram 75, see Thiram Chipco turf herbicide "D", see 2,4-D Chladone 11, see Trichlorofluoromethane Chlon, see Pentachlorophenol Chlorallylene, see Allyl chloride Chloran, see Lindane 4-Chloraniline, see 4-Chloroaniline p-Chloraniline, see 4-Chloroaniline Chlorbenzene, see Chlorobenzene Chlorbenzol, see Chlorobenzene p-Chlor-ro-cresol, see p-Chloro-ro-cresol Chlordantoin, see Amyl acetate Chlordan, see Chlordane... 

Chlorocresol, see y Chloro-ro-cresol p-Chlorocresol, see y Chloro-ro-cresol 4-Chloro-ro-cresol, see />Chloro-/n-cresol 6-Chloro-ro-cresol, see / Chloro /n-cresol Chlorodane, see Chlordane Chloroden, see 1,2-Dichlorobenzene Chlorodibromomethane, see Dibromochloromethane l-Chloro-2,3-dibromopropane, see l,2-Dibromo-3-chlor-... 

Chlorohydroxytoluene, see p-Chloro-ro-cresol 2-Chloro-5-hydroxytoluene, see p-Chloro-ro-cresol 4 Chloro-3-hydrox34oluene, see p-Chloro-ro-cresol... 

Chloro-3-hydrox34oluene, see p-Chloro-ro-cresol 2-Chloroisopropyl ether, see Bis(2-chloroisopropyl) ether p-Chloroisopropyl ether, see Bis(2-chloroisopropyl) ether Chloromethane, see Methyl chloride (Chloromethyl)benzene, see Benzyl chloride Chloromethyl bromide, see Bromochloromethane Chloromethyl ether, see sym-Dichloromethyl ether (Chloromethyl)ethylene oxide, see Epichlorohydrin (2-Chloro-l-methylethyl) ether, see Bis(2-chloroisoprop-yl)... 

Chloromethyl) oxhane, see Epichlorohydrin 2-(Chloromethyl)oxirane, see Epichlorohydrin 4-Chloro-3-methylphenol, see p-Chloro-ro-cresol p-Chloro-3-methylphenol, see p-Chloro-ro-cresol Chloromethyl phenyl ketone, see a-Chloroacetophenone p-Chloronaphthalene, see 2-Chloronaphthalene 4-Chloronitrobenzene, see p-Chloronitrobenzene l-Chloro-4-nitrobenzene, see p-Chloronitrobenzene 4-Chloro-l-nitrobenzene, seep-Chloronitrobenzene p-Chloro-1-nitrobenzene, see p-Chloronitrobenzene Chloronitroform, see Chloropicrin Chloronitropropane, see 1-Chloro-l-nitropropane Chlorophen, see Pentachlorophenol... 

Preventol CMK, see p-Chloro-/n-cresol Preventol I, see 2,4,5-Trichlorophenol Priltox, see Pentachlorophenol Primary amyl acetate, see Amyl acetate Primary isoamyl alcohol, see Isoamyl alcohol Primary isobutyl alcohol, see Isoamyl alcohol Prioderm, see Malathion Prist, see Methyl cellosolve Profume A, see Chloropicrin Profume R 40B1, see Methyl bromide Prokarbol, see 4,6-Dinitro-o-cresol... 

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