2,2'-dibromo-1,1'-binaphthalene

Also known as: (±)-2,2'-dibromo-1,1'-binaphthyl, rac-2,2'-dibromo-1,1'-binaphthyl, racemic-2,2'-dibromo-1,1'-binaphthyl, 2,2'-dibromo-1,1'-binaphthyl, 1,1'-bi(2-bromonaphthalene), 2,2'-dibromo-1,1'-dinaphthyl, 2-bromo-1-(2-bromonaphthalen-1-yl)naphthalene

2,2'-dibromo-1,1'-binaphthalene (CAS 74866-28-7) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C20H12Br2 and a molecular weight of 412.11700 g/mol. Key properties include a melting point of 178-183 °C, a boiling point of 178-183°C, a density of 1.614g/cm3 and a flash point of 178-183°C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H413. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 74866-28-7
Jingsj CID: J-1993915-2
Molecular Formula: C₂₀H₁₂Br₂
Molecular Weight: 412.11700 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	178-183 °C
Boiling Point	178-183°C
Density	1.614g/cm3
Flash Point	178-183°C
Exact Mass	409.93100
LogP	7.18500
Refractive Index	1.73

GHS Safety & Compliance

IrritantSignal word: Warning

H302 — Harmful if swallowed
H413

Customs & Trade Information

HS Code	2903999090
Summary	2903999090 halogenated derivatives of aromatic hydrocarbons VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2,2'-dibromo-1,1'-binaphthalene?

The CAS number of 2,2'-dibromo-1,1'-binaphthalene is 74866-28-7.

What are the molecular formula and molecular weight of 2,2'-dibromo-1,1'-binaphthalene?

2,2'-dibromo-1,1'-binaphthalene has molecular formula C20H12Br2 and molecular weight 412.11700 g/mol.

Is 2,2'-dibromo-1,1'-binaphthalene hazardous?

2,2'-dibromo-1,1'-binaphthalene has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H413.

What are the upstream and downstream products of 2,2'-dibromo-1,1'-binaphthalene?

For 2,2'-dibromo-1,1'-binaphthalene, Upstream Products: 1,1'-Bi-2-naphthol, 2-Bromonaphthalene, (R)-(+)-2,2'-Diamino-1,1'-binaphthalene; Downstream Products: 7H-Dibenzo[c,g]carbazole, 1,1'-Binaphthyl-2,2'-diamine, binaphthyl.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2,2'-dibromo-1,1'-binaphthalene (CAS 74866-28-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993915-2 (accessed 2026-11-09).

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