2-Naphthylamine-4,8-disulfonic acid
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2-Naphthylamine-4,8-disulfonic acid
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CAS No:
131-27-1
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Formula:
C10H9NO6S2
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Chemical Name:
2-Naphthylamine-4,8-disulfonic acid
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Synonyms:
1,5-Naphthalenedisulfonic acid,3-amino-;3-Amino-1,5-naphthalenedisulfonic acid;Acid IV;β-Naphthylamine-4,8-disulfonic acid;2-Naphthylamine-4,8-disulfonic acid;C acid;4,8-Disulfo-2-naphthylamine;7-Amino-1,5-naphthalenedisulfonic acid;2-Amino-4,8-naphthalenedisulfonic acid;NSC 7558;Cassella acid;3-Aminonaphthalene-1,5-disulphonic acid
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CAS No:
2-Naphthylamine-4,8-disulfonic acid Basic Attributes
303.31
303.31
205-020-5
X5M28DHP3K
7558
DTXSID5059616
2921499090
Characteristics
152
-1.57
DryPowder
1.8±0.1 g/cm3
1.733
Oral-rat LD50: 11400 mg/kg
Flammable; burning produces toxic nitrogen oxides and sulfur oxide fumes
Safety Information
36/37/38
26-36/37/39
Warehouse ventilated, low temperature and dry
P264, P280, P305+P351+P338, P33, P313
H319
|Warning|H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]|P264, P280, P305+P351+P338, and P337+P313|Aggregated GHS information provided by 11 companies from 2 notifications to the ECHA C&L Inventory.
2-Naphthylamine-4,8-disulfonic acid Use and Manufacturing
Naphthalene is sulfonated and nitrated, and the isomers are separated with magnesium salt to obtain 2-nitro-4, 8-dinaphthalenesulfonic acid magnesium salt, which is made into sodium salt by adding sodium hydroxide, and then iron powder is used in acidic medium Reducing the finished product. Raw material consumption quota: refined naphthalene 852kg/t, fuming sulfuric acid (including SO320%) 888kg/t, nitric acid 444kg/t, soda ash 581kg/t, liquid caustic soda (30%) 256kg/t, sulfuric acid (92.5%) 73kg/t , Iron powder 807kg/t, magnesium carbonate 1615kg/t.
This product is a dye intermediate and is used to synthesize reactive dyes and direct dyes, such as reactive yellow, reactive golden, reactive brown, and direct light blue B2BL.
100,000 - 500,000 lb
1,5-Naphthalenedisulfonic acid, 3-amino-: ACTIVE
Computed Properties
Molecular Weight:303.3
Hydrogen Bond Donor Count:3
Hydrogen Bond Acceptor Count:7
Rotatable Bond Count:2
Exact Mass:302.98712935
Monoisotopic Mass:302.98712935
Topological Polar Surface Area:152
Heavy Atom Count:19
Complexity:531
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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2-Naphthylamine-4,8-disulfonic acid
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