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(R)-(+)-1,1'-Bi-2-naphthol

Also known as: (R)-BINOL, (R)-(+)-1,1'-Binaphthalene-2,2'-diol, (R)-[1,1'-Binaphthalene]-2,2'-diol, (+)-2,2'-Dihydroxy-1,1'-binaphthyl, (+)-2,2μ-Dihydroxy-1,1μ-dinaphthyl, (R)-(+)-2,2'-Dihydroxy-1,1'-dinaphthyl, (R)-1,1'-Bi-2-naphthol, R-(+)-1,1'-Bi-2-naphthol

(R)-(+)-1,1'-Bi-2-naphthol (CAS 18531-94-7) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C20H14O2 and a molecular weight of 286.33000 g/mol. Key properties include a melting point of 215-218 °C, a boiling point of 511.5±50.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 263.1±30.1 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
18531-94-7
Jingsj CID
J-27942-5
Molecular Formula
C20H14O2
Molecular Weight
286.33000 g/mol
Category
Alcohols
Last updated
11/2/2026
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Physicochemical Properties

Melting Point215-218 °C
Boiling Point511.5±50.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point263.1±30.1 °C
Exact Mass299.115753
PSA40.46000
LogP3.58
Vapor Pressure0.0±1.4 mmHg at 25°C
Refractive Index1.591

GHS Safety & Compliance

Acute ToxicitySignal word: Danger
  • H301 — Toxic if swallowed
  • H319 — Causes serious eye irritation

Frequently Asked Questions

What is the CAS number of (R)-(+)-1,1'-Bi-2-naphthol?

The CAS number of (R)-(+)-1,1'-Bi-2-naphthol is 18531-94-7.

What are the molecular formula and molecular weight of (R)-(+)-1,1'-Bi-2-naphthol?

(R)-(+)-1,1'-Bi-2-naphthol has molecular formula C20H14O2 and molecular weight 286.33000 g/mol.

Is (R)-(+)-1,1'-Bi-2-naphthol hazardous?

(R)-(+)-1,1'-Bi-2-naphthol has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H319 — Causes serious eye irritation.

What are the upstream and downstream products of (R)-(+)-1,1'-Bi-2-naphthol?

For (R)-(+)-1,1'-Bi-2-naphthol, Upstream Products: 1,1'-Bi-2-naphthol, 2-Naphthol, (R)-2'-Methoxy-[1,1'-binaphthalen]-2-ol; Downstream Products: (R)-(+)-2,2'-Dimethoxy-1,1'-binaphthalene, 2,2'-Dimethoxy-1,1'-binaphthalene, (R)-(-)-6,6'-Dibromo-1,1'-bi-2-naphthol.

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

Last updated:

How to cite: Jingsj. "(R)-(+)-1,1'-Bi-2-naphthol (CAS 18531-94-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27942-5 (accessed 2026-11-09).

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