2-Amino-5-methylbenzenesulfonic acid
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2-Amino-5-methylbenzenesulfonic acid
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CAS No:
88-44-8
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Formula:
C7H9NO3S
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Chemical Name:
2-Amino-5-methylbenzenesulfonic acid
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Synonyms:
Benzenesulfonic acid,2-amino-5-methyl-;m-Toluenesulfonic acid,6-amino-;2-Amino-5-methylbenzenesulfonic acid;PTMS;PTMSA;p-Toluidine-m-sulfonic acid;6-Amino-m-toluenesulfonic acid;4-Aminotoluene-3-sulfonic acid;4-Methylaniline-2-sulfonic acid;p-Toluidine-2-sulfonic acid;2-Amino-5-methyl-1-benzenesulfonic acid;4-Methyl-2-sulfoaniline;4B Acid;1-Amino-4-methylbenzene-2-sulfonic acid;NSC 7544;4-Amino-1-methylbenzene-3-sulfonic acid
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CAS No:
2-Amino-5-methylbenzenesulfonic acid Basic Attributes
187.22
187.22
2211509
201-831-3
FF86IBK68Z
7544
DTXSID7026526
2921430090
Characteristics
88.8
0.9
DryPowder
1.4±0.1 g/cm3
93 °C @ Solvent: Water
>350°C at 760 mmHg
1.610
water: soluble 6g/L at 20°C
Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area.
Oral-rat LD50: 11700 mg/kg
Flammable; burning produces toxic nitrogen oxides and sulfur oxide fumes
Safety Information
Ⅲ
8
UN 2585 8/PG 3
2
45-34-36
53-26-27-28-36/37/39-45-28A
XT6320000
T,C,Xi
Warehouse ventilated, low temperature and dry
Stable under normal temperatures and pressures.
P280-P305 + P351 + P338-P310
H314
|Danger|H314 (79.63%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]|P260, P264, P280, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P332+P313, P337+P313, P362, P363, P405, and P501|Aggregated GHS information provided by 178 companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
2-Amino-5-methylbenzenesulfonic acid Use and Manufacturing
Using p-toluidine as a raw material, after reacting with sulfuric acid, it is baked and transposed at high temperature to obtain a crude product, and then refined to obtain a finished product; or it can be obtained by transposition sulfonation in the presence of an organic solvent. The process route of the solvent method is reasonable, the solvent recovery rate is high, the product quality is good (purity is 98.5%), and the yield is above 90%.
It is mainly used to produce pigment C.I.57:1 as an important intermediate for organic pigments, which can be used to synthesize pigment brilliant red 6B and Lisol red BK.
Pigments
Arts, crafts, and hobby materials
1,000,000 - 10,000,000 lb
Printing ink manufacturing|Benzenesulfonic acid, 2-amino-5-methyl-: ACTIVE
Computed Properties
Molecular Weight:187.22
XLogP3:0.9
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:4
Rotatable Bond Count:1
Exact Mass:187.03031432
Monoisotopic Mass:187.03031432
Topological Polar Surface Area:88.8
Heavy Atom Count:12
Complexity:244
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
Recommended Suppliers of 2-Amino-5-methylbenzenesulfonic acid
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2-Amino-5-methylbenzenesulfonic acid
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