2-Aminophenol-4-sulfonamide
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2-Aminophenol-4-sulfonamide
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CAS No:
98-32-8
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Formula:
C6H8N2O3S
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Chemical Name:
2-Aminophenol-4-sulfonamide
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Synonyms:
Benzenesulfonamide,3-amino-4-hydroxy-;Metanilamide,4-hydroxy-;1-Phenol-4-sulfonamide,2-amino-;3-Amino-4-hydroxybenzenesulfonamide;o-Aminophenol-p-sulfonamide;2-Aminophenol-4-sulfonamide;2-Amino-4-sulfamoylphenol;2-Amino-1-hydroxy-4-benzenesulfonamide;4-Hydroxymetanilamide;NSC 4976;3-Amino-4-hydroxyphenylsulfonamide;3-Amino-4-hydroxybenzene-1-sulfonamide
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CAS No:
2-Aminophenol-4-sulfonamide Basic Attributes
188.20400
188.20
202-657-0
S18Z30538J
4976
DTXSID0059166
2935009090
Safety Information
R36/37/38
S26-S36
Xi
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
H315
|Warning|H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 90 companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
2-Aminophenol-4-sulfonamide Use and Manufacturing
General procedure: A solution of amine 1-10 (0.2 g, 1 equiv) was treated with 4-chloro-3-(trifluoromethyl)phenyl isocyanate 11 (1.0 equv) in dryacetonitrile (3-4 mL). The reaction mixture was stirred at rt untilthe consumption of starting materials (TLC monitoring). Reactionwas quenched with H2O to give a precipitate that was filtered-offand washed with diethyl ether (3 x 5 mL) and dried under vacuumto afford the products 12-21.1), adding 3000L of water to the reaction kettle, Adding 30percent (percent by mass) hydrochloric acid 3.5kmol (about 426kg);Slowly add Compound II 3.0 kmol (564 kg) with stirring.The feeding time is 1 hour (to ensure that the compound II is dissolved), Then, 715 kg (containing sodium nitrite 3.12 kmol) of 30percent (percent by mass) sodium nitrite solution was added in 10 minutes.After the addition was completed, the reaction was stirred at 20 to 30 ° C for 1 hour.Add the appropriate amount of sulfamic acid, Destroy excess sodium nitrite (added amount of iodine-starch test paperNo longer display blue);Obtaining an acidic solution of compound III;(Step 1). After adding 50 parts of
Dye intermediate. Used as a diazo component for the production of neutral dyes such as neutral dark yellow GRL.
Benzenesulfonamide, 3-amino-4-hydroxy-: ACTIVE
Computed Properties
Molecular Weight:188.21
XLogP3:-0.3
Hydrogen Bond Donor Count:3
Hydrogen Bond Acceptor Count:5
Rotatable Bond Count:1
Exact Mass:188.02556330
Monoisotopic Mass:188.02556330
Topological Polar Surface Area:115
Heavy Atom Count:12
Complexity:246
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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