5-Amino-2-naphthalenesulfonic acid
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5-Amino-2-naphthalenesulfonic acid
structure -
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CAS No:
119-79-9
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Formula:
C10H9NO3S
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Chemical Name:
5-Amino-2-naphthalenesulfonic acid
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Synonyms:
2-Naphthalenesulfonic acid,5-amino-;5-Amino-2-naphthalenesulfonic acid;Cleve's β-acid;1,6-Cleve's acid;1-Naphthylamine-6-sulfonic acid;5-Naphthylamine-2-sulfonic acid;1-Amino-6-sulfonaphthalene;1-Amino-6-naphthalenesulfonic acid;6-Sulfo-1-naphthylamine;Cleve's acid;NSC 31506;NSC 4984
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CAS No:
5-Amino-2-naphthalenesulfonic acid Basic Attributes
223.25
223.25
1819887
257-269-4
59G56TB11B
31506|4984
DTXSID6059497
Characteristics
88.77000
0.42
grey-red power
1.5±0.1 g/cm3
>300°C
1.713
soluble 100mg/mL, clear, brown (1N NH4OH)
Refrigerator
Oral-rat LD50: 14200 mg/kg
Flammable; burning produces toxic nitrogen oxides and sulfur oxide fumes
Safety Information
III
8
1759
1
36/37/38
26-36/37/39-24/25
QK1285000
Warehouse ventilated, low temperature and dry
P260, P264, P273, P280, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P332+P313, P337+P313, P362, P363, P405, P501
H314
|Warning|H315 (66.67%): 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 10 companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|Not Classified
5-Amino-2-naphthalenesulfonic acid Use and Manufacturing
The refined naphthalene is sulfonated to obtain 2-naphthalenesulfonic acid, which is nitrated to produce a mixture of 1-nitro-6-naphthalenesulfonic acid and 1-nitro-7-naphthalenesulfonic acid. The mixed nitronaphthalene sulfonic acid was neutralized with magnesium carbonate to form magnesium salt, and then reduced with iron powder to obtain mixed magnesium aminonaphthalene sulfonate, which was separated by the difference in solubility of the two isomer magnesium salts at a certain temperature. , After separation, acid precipitation to obtain 1, 6-Klev acid and 1, 7-Klev acid.
Fluorescent reagent.
2-Naphthalenesulfonic acid, 5-amino-: ACTIVE
Computed Properties
Molecular Weight:223.25
XLogP3:-0.1
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:4
Rotatable Bond Count:1
Exact Mass:223.03031432
Monoisotopic Mass:223.03031432
Topological Polar Surface Area:88.8
Heavy Atom Count:15
Complexity:322
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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5-Amino-2-naphthalenesulfonic acid
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