1-Amino-2-naphthol-4-sulfonic Acid

Modify Date: 2026-07-01 14:42:55

1-Amino-2-naphthol-4-sulfonic Acid Structure
1-Amino-2-naphthol-4-sulfonic Acid structure
 Common Name 1-Amino-2-naphthol-4-sulfonic Acid
CAS Number 116-63-2 Molecular Weight 239.248
Density 1.6±0.1 g/cm3 Boiling Point 466ºC
Molecular Formula C10H9NO4S Melting Point 295ºC
MSDS USA Flash Point N/A

 Names

Name 4-amino-3-hydroxynaphthalene-1-sulfonic acid
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.6±0.1 g/cm3
Boiling Point 466ºC
Melting Point 295ºC
Molecular Formula C10H9NO4S
Molecular Weight 239.248
Exact Mass 239.025223
PSA 109.00000
LogP -0.92
Index of Refraction 1.748
InChIKey RXCMFQDTWCCLBL-UHFFFAOYSA-N
SMILES Nc1c(O)cc(S(=O)(=O)O)c2ccccc12
Stability Stable. Incompatible with strong bases, acid chlorides, acid anhydrides, strong oxidizing agents.
Water Solubility insoluble

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
QK1292000
CHEMICAL NAME :
1-Naphthalenesulfonic acid, 4-amino-3-hydroxy-
CAS REGISTRY NUMBER :
116-63-2
LAST UPDATED :
199709
DATA ITEMS CITED :
4
MOLECULAR FORMULA :
C10-H9-N-O4-S
MOLECULAR WEIGHT :
239.26

 Safety Information

Personal Protective Equipment Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Hazard Codes Xi:Irritant
Risk Phrases R36/37/38
Safety Phrases S26-S37/39
RIDADR UN 2585
WGK Germany 3
RTECS QK1292000
Packaging Group III
Hazard Class 8.0
HS Code 29222100

 Synthetic Route

 Customs

HS Code 2922299090
Summary 2922299090. other amino-naphthols and other amino-phenols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

 Articles1

More Articles
F.A. Sorrentino et al.

Microchem. J. 15 , 441, (1970)

 Synonyms

1-Amino-2-naphthol-4-sulfonic Acid
4-amino-3-hydroxynaphthalene-1-sulfonic acid
1,2,4-Acid
MFCD00004019
EINECS 204-147-3
4-Amino-3-hydroxy-1-naphthalenesulfonic acid
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tert-butyl N-[16-[[(1S)-1-[(2S,4R)-4-hydroxy-2-[[4-(4-methylthiazol-5-yl)phenyl]methylcarbamoyl]pyrrolidine-1-carbonyl]-2,2-dimethyl-propyl]amino]-16-oxo-hexadecyl]carbamate
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tert-butyl N-[(1S)-4-amino-1-[[8-[[(1S)-1-[(2S,4R)-4-hydroxy-2-[[4-(4-methylthiazol-5-yl)phenyl]methylcarbamoyl]pyrrolidine-1-carbonyl]-2,2-dimethyl-propyl]amino]-8-oxo-octoxy]methyl]-4-oxo-butyl]carbamate
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tert-butyl N-[2-[2-[2-[2-[2-[[(1S)-1-[(2S,4R)-4-hydroxy-2-[[(1S)-1-[4-(4-methylthiazol-5-yl)phenyl]ethyl]carbamoyl]pyrrolidine-1-carbonyl]-2,2-dimethyl-propyl]amino]-2-oxo-ethoxy]ethoxy]ethoxy]ethoxy]ethyl]-N-methyl-carbamate
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2-[[(1S)-1-[(2S,4R)-2-[[(1R)-2-[[2-[[(1R)-1-(aminomethyl)-2-[[(1S)-2-amino-2-oxo-1-(sulfanylmethyl)ethyl]amino]-2-oxo-ethyl]amino]-2-oxo-ethyl]amino]-1-[4-(4-methylthiazol-5-yl)phenyl]-2-oxo-ethyl]carbamoyl]-4-hydroxy-pyrrolidine-1-carbonyl]-2,2-dimethyl-propyl]amino]acetyl chloride
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tert-butyl N-[(1S)-4-amino-1-[[9-[[(1S)-1-[(2S,4R)-4-hydroxy-2-[[4-(4-methylthiazol-5-yl)phenyl]methylcarbamoyl]pyrrolidine-1-carbonyl]-2,2-dimethyl-propyl]amino]-9-oxo-non-2-ynoxy]methyl]-4-oxo-butyl]carbamate
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Chemsrc provides 1-Amino-2-naphthol-4-sulfonic Acid(CAS#:116-63-2) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of 1-Amino-2-naphthol-4-sulfonic Acid are included as well.>> amp version: 1-Amino-2-naphthol-4-sulfonic Acid

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