ChemicalBook--->CAS DataBase List--->119-28-8

119-28-8

119-28-8 Structure

119-28-8 Structure
IdentificationMore
[Name]

1-Naphthylamine-7-sulfonic acid
[CAS]

119-28-8
[Synonyms]

1,4-SODIUM NAPHTHIONATE
1,7-CLEVES ACID
1,7-CLEVE'S ACID
1-AMINO-4-SULFONAPHTHALENE SODIUM SALT
1-Amino-7-naphthalenesulfonic acid
1-NAPHTHYLAMINE-4-SULFONIC ACID SODIUM SALT
1-NAPHTHYLAMINE-4-SULFONIC ACID SODIUM SALT 0.5-WATER
1-NAPHTHYLAMINE-7-SULFONIC ACID
4-AMINO-1-NAPHTHALENESULFONIC ACID SODIUM SALT
4-AMINO-1-NAPHTHALENESULFONIC ACID SODIUM SALT 0.5-WATER
4-AMINONAPHTHALENE-1-SULFONIC ACID SODIUM SALT
4-AMINONAPHTHALENE-1-SULPHONIC ACID SODIUM SALT
8-AMINO-2-NAPHTHALENESULFONIC ACID
8-AMINONAPHTHALENE-2-SULFONIC ACID
ALPHA-NAPHTHYLAMINE-7-SULFONIC ACID
CLEVE'S ACID
CLEVES ACID-1,7
NAPHTHIONIC ACID SODIUM SALT
NAPHTHIONIC ACID SODIUM SALT 0.5-WATER
NAPHTHYLAMINE-4-SULFONIC ACID SODIUM SALT
[EINECS(EC#)]

204-311-4
[Molecular Formula]

C10H9NO3S
[MDL Number]

MFCD00044844
[Molecular Weight]

223.25
[MOL File]

119-28-8.mol
Chemical PropertiesBack Directory
[Melting point ]

≥300 °C(lit.)
[Boiling point ]

220°C (rough estimate)
[density ]

1.3588 (rough estimate)
[refractive index ]

1.6500 (estimate)
[storage temp. ]

Sealed in dry,Room Temperature
[solubility ]

Aqueous Base (Slightly), DMSO (Slightly, Sonicated)
[form ]

Powder
[pka]

pK1: 3.66 (25°C)
[Merck ]

2351
[BRN ]

2115629
[InChIKey]

QEZZCWMQXHXAFG-UHFFFAOYSA-N
[CAS DataBase Reference]

119-28-8(CAS DataBase Reference)
[NIST Chemistry Reference]

1-Naphthylamine-7-sulfonic acid(119-28-8)
[EPA Substance Registry System]

119-28-8(EPA Substance)
Questions And AnswerBack Directory
[Synthesis]

1-Naphthylamine-7-sulfonic acid can be obtained by sulfonation, nitration, neutralization, reduction and acid precipitation of naphthalene.
Safety DataBack Directory
[Hazard Codes ]

C
[Risk Statements ]

R34:Causes burns.
[Safety Statements ]

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 ]

UN 2585 8/PG 3
[WGK Germany ]

2
[TSCA ]

Yes
[HazardClass ]

8
[PackingGroup ]

III
[HS Code ]

29214500
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Sulfuric acid-->Nitric acid-->Iron-->TITANIUM OXIDE
[Preparation Products]

Peri acid-->Sulphur Blue CV-->1-Aminonaphthalene-6-sulfonic acid-->Direct Blue 71-->disodium 3-[[4-[[4-amino-6(or 7)-sulphonatonaphthyl]azo]phenyl]azo]-6-[(2,4-diaminophenyl)azo]-4-hydroxynaphthalene-2-sulphonate-->1-Amino-7-naphthol-->ACID ORANGE 51-->C.I. Mordant Brown 90-->1,4-Benzenedisulfonic acid, 2-[[4-[[4-[(2,4-diamino-5-nitrophenyl)azo]-6-sulfo-1-naphthalenyl]azo]-1-naphthalenyl]azo]-, trisodium salt-->tetrasodium 2-[[2-amino-6-[[4-[[4-[(3-carboxylato-4-hydroxyphenyl)azo]-7-sulphonato-1-naphthyl]azo]-2,5-dimethoxyphenyl]azo]-5-hydroxy-7-sulphonato-1-naphthyl]azo]-5-nitrobenzoate-->Direct Black 197-->Direct Black 24-->Direct Blue 82-->Direct Brown 25-->Mordant Brown 36-->C.I. Direct green 21-->DIRECT BLUE 78-->C.I. Direct Brown 150-->C.I. Direct Brown 149-->2-Naphthalenesulfonic acid, 6-[[4-amino-6(or 7)-sulfo-1-naphthalenyl]azo]-3-[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-4-hydroxy-, disodium salt
Hazard InformationBack Directory
[Chemical Properties]

Brown crystalline
[Uses]

8-Amino-2-naphthalenesulfonic acid can be used as a reactant to synthesize:
  • Fe3O4/sulfonated polyaniline composite material via chemical oxidative polymerization with aniline in the presence of magnetite (Fe3O4) nanoparticles.
  • Prismatic crystals of strychnine-8-ammonio-2-naphthalenesulfonate-water by heating with strychnine in water/ethanol solvent mixture.
  • 5-amino-9-dialkylamino benzo[a]phenoxazine dyes (Nile blue analogs) by condensation with N-alkyl or N-sulfo-propyl 4-arylazo-substituted 3-hydroxyaniline.

[Uses]

Intermediate of dyestuff
[Application]

1-Naphthylamine-7-sulfonic acid can be used as a dye intermediate to prepare dyes such as direct light fast blue B2RL, direct light fast red brown RTL, and sulfur blue CV.
Spectrum DetailBack Directory
[Spectrum Detail]

1-Naphthylamine-7-sulfonic acid(119-28-8)MS
1-Naphthylamine-7-sulfonic acid(119-28-8)IR1
1-Naphthylamine-7-sulfonic acid(119-28-8)IR2
Well-known Reagent Company Product InformationBack Directory
[Sigma Aldrich]

119-28-8(sigmaaldrich)
[TCI AMERICA]

8-Amino-2-naphthalenesulfonic Acid,>95.0%(T)(119-28-8)
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