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(S)-(-)-1,1'-Bi-2-naphthol

Also known as: (S)-(-)-1,1'-Binaphthalene-2,2'-diol, (S)-BINOL, (S)-(-)-2,2'-Dihydroxy-1,1'-binaphthyl, (S)-(-)-2,2'-Dihydroxy-1,1'-dinaphthyl, (S)-1,1'-Bi-2-naphthol, (S)-1,1'-Binaphthalene-2,2'-diol, 2,2'-Dihydroxy-1,1'-binaphthyl, (-)-2,2'-Dihydroxy-1,1'-binaphthyl, MFCD00004068, EINECS 210-014-0

(S)-(-)-1,1'-Bi-2-naphthol (CAS 18531-99-2) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C20H14O2 and a molecular weight of 286.32 g/mol. Key properties include a melting point of 215-218 °C and a density of 1 g/cm3. 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 Aug 21, 2026.

CAS No.
18531-99-2
Jingsj CID
J-47746-3
Molecular Formula
C20H14O2
Molecular Weight
286.32 g/mol
Category
Alcohols
Last updated
8/21/2026
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Physicochemical Properties

Melting Point215-218 °C
Density1 g/cm3
Exact Mass286.09900
PSA40.46000
LogP5.07120
Refractive Index-36.0 ° (C=1， THF)

GHS Safety & Compliance

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

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 (S)-(-)-1,1'-Bi-2-naphthol?

The CAS number of (S)-(-)-1,1'-Bi-2-naphthol is 18531-99-2.

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

(S)-(-)-1,1'-Bi-2-naphthol has molecular formula C20H14O2 and molecular weight 286.32 g/mol.

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

(S)-(-)-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 (S)-(-)-1,1'-Bi-2-naphthol?

For (S)-(-)-1,1'-Bi-2-naphthol, Upstream Products: 2-Naphthol, 1,1'-Bi-2-naphthol, (S)-(-)-2,2'-Dimethoxy-1,1'-binaphthalene; Downstream Products: 1,1'-Bi-2-naphthol, (R)-(+)-1,1'-Bi-2-naphthol, (S)-(-)-2,2'-Dimethoxy-1,1'-binaphthalene.

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

Last updated:

How to cite: Jingsj. "(S)-(-)-1,1'-Bi-2-naphthol (CAS 18531-99-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47746-3 (accessed 2026-11-09).

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