1,4-Dibromobenzene-d4

Also known as: 1,4-dibromo-2,3,5,6-tetradeuteriobenzene, 1,4-dibromo-2,3,5,6-tetradeuterio-benzene, d4-1,4-dibromobenzene, d4-p-dibromobenzene, perdeuterated 1,4-dibromobenzene

1,4-Dibromobenzene-d4 (CAS 4165-56-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6Br2D4 and a molecular weight of 239.92900 g/mol. Key properties include a melting point of 88-90ºC(lit.), a boiling point of 219ºC, a density of 1.872 g/mL at 25ºC and a flash point of 89.3ºC. 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.: 4165-56-4
Jingsj CID: J-13275-2
Molecular Formula: C₆Br₂D₄
Molecular Weight: 239.92900 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	88-90ºC(lit.)
Boiling Point	219ºC
Density	1.872 g/mL at 25ºC
Flash Point	89.3ºC
Exact Mass	237.89300
LogP	3.21160
Refractive Index	1.599

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning

H315 — Causes skin irritation
H319 — Causes serious eye irritation
H335 — May cause respiratory irritation
H400 — Very toxic to aquatic life

Frequently Asked Questions

What is the CAS number of 1,4-Dibromobenzene-d4?

The CAS number of 1,4-Dibromobenzene-d4 is 4165-56-4.

What are the molecular formula and molecular weight of 1,4-Dibromobenzene-d4?

1,4-Dibromobenzene-d4 has molecular formula C6Br2D4 and molecular weight 239.92900 g/mol.

Is 1,4-Dibromobenzene-d4 hazardous?

1,4-Dibromobenzene-d4 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 1,4-Dibromobenzene-d4?

For 1,4-Dibromobenzene-d4, Upstream Products: Benzene-d6, 1,4-Dibromobenzene; Downstream Products: terphenyl-d14, 4-Bromobenzonitrile-d4, 4,4'-Dibromobiphenyl-d8.

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. "1,4-Dibromobenzene-d4 (CAS 4165-56-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-13275-2 (accessed 2026-11-09).

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