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Cas:88-44-8
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inquiry4-Aminotoluene-3-sulfonic acid CAS:88-44-8 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organ
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We are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov
Cas:88-44-8
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inquirysuperior quality Appearance:BEIGE CRYSTALLINE POWDER Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:1kg/bag, 1kg/drum or 25kg/drum or as per your request. Application:Dye intermediates. Coupled with 2, 3-4 b aci
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inquiryProduct name: 4-Aminotoluene-3-Sulfonic Acid CAS No.:88-44-8 Molecule Formula:C7H8NO3S Molecule Weight:186.21 Purity: 98.0% Package: 25kg/drum Description:White powder Manufacture Standards:Enterprise Standard TEST
Cas:88-44-8
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inquiryLower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe
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inquiryhigh purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou
Conditions | Yield |
---|---|
With [RuCl(P(C6H5)3)2(O(C6H4)NCH(C4H3N))]; bromamine B; sodium hydroxide In water; acetonitrile at 39.84℃; for 4h; | 96% |
Conditions | Yield |
---|---|
With sulfuric acid for 0.0416667h; microwave irradiation; | 84% |
With sulfuric acid at 170 - 180℃; for 3h; | 70% |
With sulfuric acid at 210 - 230℃; |
Conditions | Yield |
---|---|
for 0.00833333h; microwave irradiation; | 78% |
1-methyl-4-nitrobenzene
A
4-methylphenylsulfamic acid
B
2-Amino-5-methylbenzenesulfonic acid
Conditions | Yield |
---|---|
With sodium disulfite |
4-amino-toluene-2-sulfonic acid
A
4-amino-toluene-3,5-disulfonic acid
B
2-Amino-5-methylbenzenesulfonic acid
Conditions | Yield |
---|---|
With sulfuric acid at 180 - 200℃; |
Conditions | Yield |
---|---|
With sulfuric acid |
Conditions | Yield |
---|---|
With ethanol; sulfur dioxide |
Conditions | Yield |
---|---|
With sulfuric acid at 150 - 160℃; |
Conditions | Yield |
---|---|
durch Reduktion; |
4-ureido-toluene-3-sulfonic acid
acetic anhydride
2-Amino-5-methylbenzenesulfonic acid
4-ureido-toluene-3-sulfonic acid
acetyl chloride
2-Amino-5-methylbenzenesulfonic acid
Conditions | Yield |
---|---|
at 110℃; im Rohr; |
4-ureido-toluene-3-sulfonic acid
aniline
A
N,N-diphenylurea
B
2-Amino-5-methylbenzenesulfonic acid
Conditions | Yield |
---|---|
at 160℃; |
Conditions | Yield |
---|---|
With sulfuric acid at 140 - 170℃; |
sodium p-methylphenylsulphamate
A
2-Amino-5-methylbenzenesulfonic acid
B
p-toluidine
Conditions | Yield |
---|---|
In methanol for 0.0166667h; Product distribution; Irradiation; var. solvents; var. radical scavangers; | A 41.2 % Chromat. B 54.1 % Chromat. |
reactive red 45
isopropyl alcohol
A
2-Amino-5-methylbenzenesulfonic acid
C
acetone
Conditions | Yield |
---|---|
In water Irradiation; |
bis(4-toluidinium)sulfate
2-Amino-5-methylbenzenesulfonic acid
Conditions | Yield |
---|---|
at 250℃; under 60 Torr; for 0.333333h; | |
at 250℃; under 60 Torr; for 0.333333h; Product distribution; Thermodynamic data; thermal decomposition; ΔH; activation energy; intermediates and reaction mechanism; cross sulfonation with α-naphthylamine; |
Conditions | Yield |
---|---|
at 80℃; |
Conditions | Yield |
---|---|
at 210 - 230℃; | |
In thiophene |
sulfuric acid
p-toluidine
A
4-amino-toluene-2-sulfonic acid
B
4-amino-toluene-3,5-disulfonic acid
C
2-Amino-5-methylbenzenesulfonic acid
Conditions | Yield |
---|---|
at 180℃; bis der Geruch nach schwefliger Saeure bemerkbar; |
1-methyl-4-nitrosobenzene
A
2-Amino-5-methylbenzenesulfonic acid
B
p-toluidine
1-methyl-4-nitrosobenzene
A
2-Amino-5-methylbenzenesulfonic acid
B
p-toluidine
4-amino-toluene-3,5-disulfonic acid
A
sulfuric acid
B
2-Amino-5-methylbenzenesulfonic acid
Conditions | Yield |
---|---|
at 200℃; |
4-amino-toluene-3,5-disulfonic acid
water
A
sulfuric acid
B
2-Amino-5-methylbenzenesulfonic acid
Conditions | Yield |
---|---|
at 140℃; |
1-methyl-4-nitrobenzene
A
4-methylphenylsulfamic acid
B
2-Amino-5-methylbenzenesulfonic acid
Conditions | Yield |
---|---|
With sulfuric acid at 180℃; |
methanol
4,4'-(4,8-dihydroxy-9,10-dioxo-9,10-dihydro-anthracene-1,5-diyl-di-amino)-bis-toluene-3-sulfonic acid
A
2-Amino-5-methylbenzenesulfonic acid
Conditions | Yield |
---|---|
Einleiten von Chlorwasserstoff; |
ethanol
N-(4-methylphenyl)hydroxylamine
sulphurous acid
2-Amino-5-methylbenzenesulfonic acid
hydrogenchloride
4-(4-amino-3-bromo-9,10-dioxo-9,10-dihydro-[1]anthrylamino)-toluene-3-sulfonic acid
A
9,10-Dihydroxy-2,3-dihydro-anthracene-1,4-dione
B
2-Amino-5-methylbenzenesulfonic acid
2-Amino-5-methylbenzenesulfonic acid
25,26,27,28-tetrakis(hydroxy)calix[4]arene
Conditions | Yield |
---|---|
Stage #1: 2-Amino-5-methylbenzenesulfonic acid With hydrogenchloride; sodium nitrite for 0.0333333h; Stage #2: 25,26,27,28-tetrakis(hydroxy)calix[4]arene With sodium carbonate In water for 0.0333333h; microwave irradiation; Further stages.; | 92% |
2-Amino-5-methylbenzenesulfonic acid
1,4,5,8-naphthalenetetracarboxylic dianhydride
naphthalene-1,8-diamine
Conditions | Yield |
---|---|
With 1H-imidazole at 170℃; for 3h; | 83% |
Conditions | Yield |
---|---|
Stage #1: pyridine-2-carbaldehyde; 2-Amino-5-methylbenzenesulfonic acid In methanol; water at 60℃; for 1h; Stage #2: copper(II) choride dihydrate In methanol; water at 20℃; for 1h; | 82% |
Conditions | Yield |
---|---|
Stage #1: pyridine-2-carbaldehyde; 2-Amino-5-methylbenzenesulfonic acid; water at 60℃; for 1h; Stage #2: copper(II) choride dihydrate at 20℃; for 1h; | 82% |
formaldehyd
2-Amino-5-methylbenzenesulfonic acid
2-Dimethylamino-5-methyl-benzenesulfonic acid
Conditions | Yield |
---|---|
With hydrogen; palladium on activated charcoal In methanol; water under 2068.6 Torr; | 78% |
2-Amino-5-methylbenzenesulfonic acid
1,4,5,8-naphthalenetetracarboxylic dianhydride
1,2-diamino-benzene
Conditions | Yield |
---|---|
With 1H-imidazole at 170℃; for 4h; | 76% |
2-Amino-5-methylbenzenesulfonic acid
copper diacetate
2-hydroxy-3-carboxy-1-naphtaldehyde
Conditions | Yield |
---|---|
With water In ethanol; water 2-hydroxy-3-carboxy-1-naphtaldehyde (0.001 mol) in warm EtOH was added to a soln. of 4-methyl-2-sulphonic acid aniline (0.001 mol) in hot water; the resulting orange soln. was cooled and filtered, the aq. soln. of Cu-compd. (0.001 mol) was added ;; the ppt. was filtered off, washed with water and dried over silica gel under vacuum; elem anal.;; | 75% |
2-Amino-5-methylbenzenesulfonic acid
(E)-3-ethoxyacrylaldehyde
A
sodium 2-(3-oxo-1-propenylamino)-5-methylbenzenesulfonate
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In water Ambient temperature; | A 72.5% B n/a |
2-Hydroxy-5-methylisophthalaldehyde
2-Amino-5-methylbenzenesulfonic acid
zinc diacetate
Conditions | Yield |
---|---|
With water In ethanol; water metal salt and 4-methyl 2-sulphonic acid aniline soln. in H2O filtered,stirred, soln. of 2-hydroxy 5-methyl isophthalaldehyde in EtOH added dropwise at room temp., stirred for 2 h; solid filtered off, washed with water, dried (vac.); elem. anal.; | 71% |
2-Amino-5-methylbenzenesulfonic acid
Conditions | Yield |
---|---|
With chlorosulfonic acid at 0 - 80℃; for 3h; | 70% |
With chlorosulphuric acid; sulfuric acid | |
With chlorosulphuric acid; sulfuric acid |
2-Hydroxy-5-methylisophthalaldehyde
2-Amino-5-methylbenzenesulfonic acid
copper diacetate
Conditions | Yield |
---|---|
With water In ethanol; water 4-methyl 2-sulphonic acid aniline in boiling water soln. mixed with 2-hydroxy 5-methyl isophthalaldehyde in hot EtOH soln., filtered hot, cooled to room temp., heated, soln. of Cu salt in H2O dropwise added with stirring; solid filtered, washed with H2O, dried (vac.); elem. anal.; | 68% |
2-Amino-5-methylbenzenesulfonic acid
Conditions | Yield |
---|---|
Stage #1: 2-Amino-5-methylbenzenesulfonic acid With hydrogenchloride; sodium nitrite In water at 0 - 5℃; Stage #2: With sodium iodide In water at 0 - 50℃; | 67% |
With hydrogenchloride; urea; sodium iodide; sodium nitrite 1.) H2O, 0-5 deg C, 30 min, 2.) H2O, 0-5 deg C, 2 h; r.t., 1 h; 50 deg C, 13 h; Yield given. Multistep reaction; | |
Stage #1: 2-Amino-5-methylbenzenesulfonic acid With hydrogenchloride; sodium nitrite Stage #2: With potassium iodide Further stages.; |
2-Hydroxy-5-methylisophthalaldehyde
2-Amino-5-methylbenzenesulfonic acid
magnesium acetate
Conditions | Yield |
---|---|
In water metal salt and 4-methyl 2-sulphonic acid aniline hot soln. filtered, stirred at 60°C, hot soln. of 2-hydroxy 5-methyl isophthalaldehyde dropwise added; cooled, filtered, standed overnight at 5°C, crystals filtered off, washed with water, then with acetone, dried (vac.); elem. anal.; | 62% |
2-Amino-5-methylbenzenesulfonic acid
2-Iodo-5-methylbenzenesulfonic acid
Conditions | Yield |
---|---|
Stage #1: 2-Amino-5-methylbenzenesulfonic acid With sodium carbonate In water Stage #2: With sodium nitrite In water at 0℃; for 0.75h; Further stages; | 56% |
Multi-step reaction with 2 steps 1: 1.) NaNO2, conc. HCl, 2.) NaI, urea / 1.) H2O, 0-5 deg C, 30 min, 2.) H2O, 0-5 deg C, 2 h; r.t., 1 h; 50 deg C, 13 h 2: 65 percent / aq. HCl / r.t., 3 h; 50 deg C, 2 h; r.t., overnight View Scheme | |
Stage #1: 2-Amino-5-methylbenzenesulfonic acid With sodium carbonate; sodium nitrite In water at 0℃; for 0.5h; Stage #2: With hydrogenchloride In water for 0.5h; Cooling with ice; Stage #3: With potassium iodide In water at 0 - 80℃; |
2-Amino-5-methylbenzenesulfonic acid
Conditions | Yield |
---|---|
With phosphorus pentachloride In trichlorophosphate | 55% |
2-Hydroxy-5-methylisophthalaldehyde
2-Amino-5-methylbenzenesulfonic acid
manganese(II) acetate
Conditions | Yield |
---|---|
In water metal salt and 4-methyl 2-sulphonic acid aniline hot soln. filtered, stirred at 60°C, hot soln. of 2-hydroxy 5-methyl isophthalaldehyde dropwise added; cooled, filtered, standed overnight at 5°C, crystals filtered off, washed with water, then with acetone, dried (vac.); elem. anal.; | 53% |
2-Hydroxy-5-methylisophthalaldehyde
2-Amino-5-methylbenzenesulfonic acid
nickel diacetate
Conditions | Yield |
---|---|
With water In ethanol; water metal salt and 4-methyl 2-sulphonic acid aniline soln. in H2O filtered,stirred, soln. of 2-hydroxy 5-methyl isophthalaldehyde in EtOH added dropwise at room temp., stirred for 2 h; solid filtered off, washed with water, dried (vac.), recrystd. (water);elem. anal.; | 50% |
2-Hydroxy-5-methylisophthalaldehyde
2-Amino-5-methylbenzenesulfonic acid
cobalt(II) acetate
Conditions | Yield |
---|---|
With water In ethanol; water metal salt and 4-methyl 2-sulphonic acid aniline soln. in water filtered, stirred, soln. of 2-hydroxy 5-methyl isophthalaldehyde in EtOH added dropwise at room temp., stirred for 2 h; solid filtered off, washed with water, dried (vac.); elem. anal.; | 50% |
pyridine-2-carbaldehyde
2-Amino-5-methylbenzenesulfonic acid
water
copper(II) bis(trifluoromethanesulfonate)
Conditions | Yield |
---|---|
Stage #1: pyridine-2-carbaldehyde; 2-Amino-5-methylbenzenesulfonic acid; water In methanol at 60℃; for 1h; Stage #2: copper(II) bis(trifluoromethanesulfonate) In methanol for 1h; | 40% |
2-Amino-5-methylbenzenesulfonic acid
Conditions | Yield |
---|---|
With sodium perborate hexahydrate; boric acid; acetic acid at 60℃; for 6h; | 35% |
Conditions | Yield |
---|---|
With water; sodium acetate In water (N2); metal salts and 4-methyl 2-sulphonic acid aniline hot soln. filtered, stirred at 60°C, hot soln. of 2-hydroxy 5-methyl isophthalaldehyde dropwise added; cooled, filtered, standed overnight at 5°C, crystals filtered off, washed with water, then with acetone, dried (vac.); elem. anal.; | 30% |
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 12h; | 24% |
potassium cyanate
2-Amino-5-methylbenzenesulfonic acid
4-ureido-toluene-3-sulfonic acid
Conditions | Yield |
---|---|
With hydrogenchloride |
Conditions | Yield |
---|---|
Diazotization.Erhitzen der Diazoniumverbindung mit verd. Salpetersaeure; | |
With nitrogen oxides; water |
Conditions | Yield |
---|---|
With water; bromine |
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