4,4'-Dibromo-2,2'-dinitrobiphenyl

Also known as: 1,1'-Biphenyl, 4,4'-dibromo-2,2'-dinitro-, 4,4'-Dibromo-2,2'-dinitro-1,1'-biphenyl, 4-bromo-1-(4-bromo-2-nitrophenyl)-2-nitrobenzene

4,4'-Dibromo-2,2'-dinitrobiphenyl (CAS 91371-12-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H6Br2N2O4 and a molecular weight of 401.995 g/mol. Key properties include a boiling point of 452.9±40.0 °C at 760 mmHg, a density of 1.9±0.1 g/cm3 and a flash point of 227.7±27.3 °C. It is classified under GHS with signal word Danger and hazard statements H315 — Causes skin irritation, H318 — Causes serious eye damage and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 91371-12-9
Jingsj CID: J-1468389-7
Molecular Formula: C₁₂H₆Br₂N₂O₄
Molecular Weight: 401.995 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	452.9±40.0 °C at 760 mmHg
Density	1.9±0.1 g/cm3
Flash Point	227.7±27.3 °C
Exact Mass	399.869415
PSA	91.64000
LogP	4.49
Vapor Pressure	0.0±1.1 mmHg at 25°C
Refractive Index	1.676

GHS Safety & Compliance

Corrosion / Irritant / Environmental HazardSignal word: Danger

H315 — Causes skin irritation
H318 — Causes serious eye damage
H335 — May cause respiratory irritation
H400 — Very toxic to aquatic life

Customs & Trade Information

HS Code	2904909090
Summary	HS:2904909090 sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated 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 4,4'-Dibromo-2,2'-dinitrobiphenyl?

The CAS number of 4,4'-Dibromo-2,2'-dinitrobiphenyl is 91371-12-9.

What are the molecular formula and molecular weight of 4,4'-Dibromo-2,2'-dinitrobiphenyl?

4,4'-Dibromo-2,2'-dinitrobiphenyl has molecular formula C12H6Br2N2O4 and molecular weight 401.995 g/mol.

Is 4,4'-Dibromo-2,2'-dinitrobiphenyl hazardous?

4,4'-Dibromo-2,2'-dinitrobiphenyl has GHS signal word Danger and hazard statements H315 — Causes skin irritation; H318 — Causes serious eye damage; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 4,4'-Dibromo-2,2'-dinitrobiphenyl?

For 4,4'-Dibromo-2,2'-dinitrobiphenyl, Upstream Products: 2,5-Dibromonitrobenzene, 3,7-Dibromodibenzo[b,d]thiophene, 2,2'-Dinitrobiphenyl; Downstream Products: 2,7-Dibromo-9H-carbazole, 4,4'-dibromo-[1,1'-biphenyl]-2,2'-diamine, 4,4'-Dibromo-2,2'-diiodobiphenyl.

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. "4,4'-Dibromo-2,2'-dinitrobiphenyl (CAS 91371-12-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1468389-7 (accessed 2026-11-09).

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