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ChemicalBook--->CAS DataBase List--->98-33-9

98-33-9

98-33-9 Structure

98-33-9 Structure
IdentificationMore
[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 PropertiesBack Directory
[Melting point ]

290°C
[density ]

1.3553 (rough estimate)
[refractive index ]

1.6100 (estimate)
[pka]

pK1: 3.125 (25°C)
[Water Solubility ]

5g/L(20 ºC)
[CAS DataBase Reference]

98-33-9(CAS DataBase Reference)
[EPA Substance Registry System]

98-33-9(EPA Substance)
Safety DataBack 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
Raw materials And Preparation ProductsBack Directory
[Raw materials]

o-Toluidine-->Diphenyl sulfone-->3-Hydroxy-2-naphthoic acid-->2-Aminonaphthalene-1-sulfonic acid
[Preparation Products]

DIRECT ORANGE 118-->Acid Brown 2-->ACID ORANGE 8-->trisodium 4-hydroxy-7-[[[[5-hydroxy-7-sulphonato-6-[(o-tolyl)azo]-2-naphthyl]amino]carbonyl]amino]-3-[(2-methyl-4-sulphonatophenyl)azo]naphthalene-2-sulphonate-->disodium 7-(benzoylamino)-4-hydroxy-3-[[3-methyl-4-[(2-methyl-4-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulphonate-->disodium hydrogen bis[4-[[2,6-dihydroxy-3-[(2-hydroxy-3,5-dinitrophenyl)azo]phenyl]azo]-3- methylbenzenesulphonato(3-)]chromate(3-)-->2-Hydroxy-5-[(2-methyl-4-sulfophenyl)azo]benzoic acid disodium salt-->DIRECT RED 24
Hazard InformationBack Directory
[Physical properties]

White to Pale-yellow to Yellow-brown Sticky Oil to Semi-Solid.
[Flammability and Explosibility]

Notclassified
Spectrum DetailBack Directory
[Spectrum Detail]

2-Aminotoluene-5-sulfonic acid(98-33-9)MS
2-Aminotoluene-5-sulfonic acid(98-33-9)1HNMR
2-Aminotoluene-5-sulfonic acid(98-33-9)13CNMR
2-Aminotoluene-5-sulfonic acid(98-33-9)IR1
2-Aminotoluene-5-sulfonic acid(98-33-9)IR2
Well-known Reagent Company Product InformationBack Directory
[Alfa Aesar]

4-Amino-3-methylbenzenesulfonic acid, 98%(98-33-9)
[Sigma Aldrich]

98-33-9(sigmaaldrich)
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