| Identification | More | [Name]
2-Aminotoluene-5-sulfonic acid | [CAS]
98-33-9 | [Synonyms]
2-AMINOTOLUENE-5-SULFONIC ACID
2-TOLUIDINE-5-SULFONIC ACID
4-AMINO-3-METHYLBENZENESULFONIC ACID
4-AMINO-M-TOLUENESULFONIC ACID
6-AMINOTOLUENE-3-SULFONIC ACID
OTS
4-amino-3-methyl-benzenesulfonicaci
o-Toluidine-4-sulfphonicacid
3-methylsulphanilic acid
ORTHO TOLUIDINE META SULFO NIC ACID (OTMSA)
2-AMINOTOLUENE-5-SULFONIC ACID 97%
2-Amino-5-sulfotoluene
2-Methyl-4-sulfoaniline
4-Amino-3-methyl-1-sulfobenzene
Benzenesulfonic acid,4-amino-3-methyl-
o-Toluidine-4-sulfonic acid (NH2=1)
3-Methyl-4-aminobenzene-1-sulfonic acid
4-Amino-3-methylbenzene-1-sulfonic acid
o-Toluidine-4-sulfonic acid | [EINECS(EC#)]
202-658-6 | [Molecular Formula]
C7H9NO3S | [MDL Number]
MFCD00025198 | [Molecular Weight]
187.22 | [MOL File]
98-33-9.mol |
| Chemical Properties | Back Directory | [Melting point ]
290°C | [density ]
1.3553 (rough estimate) | [refractive index ]
1.6100 (estimate) | [form ]
powder | [pka]
pK1: 3.125 (25°C) | [color ]
Faint beige to faint red/orange | [Water Solubility ]
5g/L(20 ºC) | [InChI]
InChI=1S/C7H9NO3S/c1-5-4-6(12(9,10)11)2-3-7(5)8/h2-4H,8H2,1H3,(H,9,10,11) | [InChIKey]
WQTCZINVPXJNEL-UHFFFAOYSA-N | [SMILES]
C1(S(O)(=O)=O)=CC=C(N)C(C)=C1 | [LogP]
0.076 at 25℃ | [CAS DataBase Reference]
98-33-9(CAS DataBase Reference) | [EPA Substance Registry System]
98-33-9(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
T | [Risk Statements ]
R45:May cause cancer.
R34:Causes burns. | [Safety Statements ]
S53:Avoid exposure-obtain special instruction before use .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . | [RIDADR ]
2811 | [TSCA ]
Yes | [HazardClass ]
8 | [PackingGroup ]
III | [HS Code ]
2921420090 |
| Hazard Information | Back Directory | [Description]
2-Aminotoluene-5-sulfonic acid is prepared from o-toluidine and 98 % H2SO4 via the sulfate, which is then baked. The sodium salt can be isolated after liming and precipitation of calcium sulfate. The solution can be used directly in the manufacture of dyes.
| [Physical properties]
White to Pale-yellow to Yellow-brown Sticky Oil to Semi-Solid. | [Flammability and Explosibility]
Notclassified |
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