1-Naphthol, CAS No. 90-15-3

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90-15-3

Catalog No. EBD2205191

CAS 90-15-3

Name 1-Naphthol

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Basic Information

Synonyms: 1-Naphthol C.I.76605 C.I.OxidationBase33 a-Naphthol 1-Hydroxynaphthalene DurafurdeveloperD Fourrine99 FurroER Oxidationbase33 1-Naphthalenol 1-naphthol(alpha) alpha-Naphthol ALPHANAPHTHOL alpha-hydroxynaphthalene alpha-napthol akosbbs-00004307

Molecular Formula: C10H8O

Molecular Weight: 144.17

MDL Number: MFCD00003930

Categories: Synthetic Chemistry > Organic Building Blocks > Phenols and Ethers Synthetic Chemistry > Basic Synthetic Reagents > Other Basic Synthetic Reagents

Product Description:

1-Naphthol, also known as α-naphthol, is a white crystalline solid with a phenolic hydroxyl group attached to the naphthalene ring system. It is a positional isomer of 2-naphthol. The compound is a versatile and fundamental aromatic building block in organic synthesis. Its primary industrial applications are as a key intermediate in the synthesis of various dyes, pigments, and agrochemicals. It serves as a precursor for azo dyes and is used in the production of certain insecticides and fungicides. In laboratory settings, 1-naphthol is commonly employed as a reagent for colorimetric detection and analysis, such as in the Molisch's test for carbohydrates and as a coupling component in diazotization reactions. 1-Naphthol is toxic if ingested or absorbed through the skin and is harmful to aquatic life. It requires careful handling in well-ventilated areas with appropriate personal protective equipment.

Physical Properties

Color: white to off-white

Melting Point: 94-96 °C(lit.)

Boiling Point: 278-280 °C(lit.)

Flash Point: >93 °C

Density: 4.5 (120 °C, vs air)

Solubility: insoluble in water <span

Refractivity: 1.6224

Storage: Store in dark!

Safety Information

Packing Level: III

Hazard Category: 6.1

Transport Codes: 2811

Analytical Data

Appearance: pale grey to brown solid