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1,3-Dihydroxynaphthalene

Also known as: Naphthoresorcinol, 1,3-Naphthalenediol, Naphthalene-1,3-diol, Naphthoresorcine, Benzoresorcinol, Naphthalenediol-(1,3)

1,3-Dihydroxynaphthalene (CAS 132-86-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H8O2 and a molecular weight of 160.169 g/mol. Key properties include a melting point of 123-125 °C(lit.), a boiling point of 361.5±9.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 185.5±13.3 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
132-86-5
Jingsj CID
J-24715-4
Molecular Formula
C10H8O2
Molecular Weight
160.169 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point123-125 °C(lit.)
Boiling Point361.5±9.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point185.5±13.3 °C
Exact Mass160.052429
PSA40.46000
LogP1.99
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.726

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Activity & Biological Data

Additional Information[1]. Vyas S, et, al. Fluorescence and light scattering studies on the interaction of 1,3-dihydroxynaphthalene with ionic and non-ionic surfactants. Polymer Photochemistry. 1984; 4(4):245-253. [2]. Suzuki S, et, al. Development of a field kit for use by non-scientists for chemical tracking using 5-(4-nitrophenyl)-2,4-pentadien-1-al. Forensic Sci Int. 2013 May 10;228(1-3):e25-7. [3]. Lee YH, et, al. Determination of carbohydrates by high-performance capillary electrophoresis with indirect absorbance detection. J Chromatogr B Biomed Appl. 1996 May 31;681(1):87-97.

Customs & Trade Information

HS Code2907299090
Summary2907299090 polyphenols; phenol-alcohols。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:5.5%。general tariff:30.0%

Frequently Asked Questions

What is the CAS number of 1,3-Dihydroxynaphthalene?

The CAS number of 1,3-Dihydroxynaphthalene is 132-86-5.

What are the molecular formula and molecular weight of 1,3-Dihydroxynaphthalene?

1,3-Dihydroxynaphthalene has molecular formula C10H8O2 and molecular weight 160.169 g/mol.

Is 1,3-Dihydroxynaphthalene hazardous?

1,3-Dihydroxynaphthalene has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 1,3-Dihydroxynaphthalene?

For 1,3-Dihydroxynaphthalene, Upstream Products: Naphthalene, 1,3-dihydroxynaphthalene-2-carboxylic acid, Ethyl 3-oxo-4-phenylbutanoate; Downstream Products: 2-Hydroxy-1,4-naphthoquinone, Naphthalene, 2-phenyl-, o-Toluic acid.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "1,3-Dihydroxynaphthalene (CAS 132-86-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-24715-4 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.