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2-Naphthol
2-Naphthol

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2-Naphthol
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Product:2-Naphthol

High Quality

Earliest Shipment

Competitive price

Professional Service

 

2-Naphthol, or β-naphthol, is a colorless crystalline solid with the formula C10H7OH. It is an isomer of 1-naphthol, differing by the location of the hydroxyl group on naphthalene. The naphthols are naphthalene homologues of phenol, with the hydroxyl group being more reactive than in the phenols. Both isomers are soluble in simple alcohols, ethers, and chloroform. They can be used in the production of dyes and in organic synthesis. For example, 2-naphthol reacts to form BINOL.

 

2-NaphtholIdentifiersPropertiesHazards
IUPAC name[hide]Naphthalen-2-ol
Other names[hide]2-Hydroxynaphthalene; 2-Naphthalenol; beta-Naphthol
CAS number135-19-3 Y
PubChem8663
ChemSpider8341 Y
UNIIP2Z71CIK5H Y
KEGGC11713 Y
ChEBICHEBI:10432 Y
ChEMBLCHEMBL14126 Y
Jmol-3D imagesImage 1
Image 2
[show]Oc2ccc1c(cccc1)c2 c1ccc2cc(ccc2c1)O
[show]InChI=1S/C10H8O/c11-10-6-5-8-3-1-2-4-9(8)7-10/h1-7,11H Y
Key: JWAZRIHNYRIHIV-UHFFFAOYSA-N Y InChI=1/C10H8O/c11-10-6-5-8-3-1-2-4-9(8)7-10/h1-7,11H
Key: JWAZRIHNYRIHIV-UHFFFAOYAV
Molecular formulaC10H8O
Molar mass144.17 g mol−1
AppearanceColorless crystalline solid
Density1.217 g/cm3
Melting point

123 °C, 396 K, 253 °F

Boiling point

285 °C, 558 K, 545 °F

Solubility in water0.74 g/L
Acidity (pKa)9.51
R-phrasesR20 R22 R50
S-phrasesS24 S25 S61
Main hazardsHarmful when inhaled or swallowed; dangerous to environment, esp. aquatic organisms.[1]

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