Benzidine

Also known as: 4,4'-Bianiline, 4,4'-Biphenyldiamine, 4,4'-Diaminobiphenyl, 4,4'-Diaminodiphenyl, 4-(4-aminophenyl)aniline, [1,1'-Biphenyl]-4,4'-diamine, p,p'-diaminobiphenyl, p-Diaminodiphenyl

Benzidine (CAS 92-87-5) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C12H12N2 and a molecular weight of 184.237 g/mol. Key properties include a melting point of 127-128 °C, a boiling point of 402°C, a density of 1.2±0.1 g/cm3 and a flash point of 11 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H301 — Toxic if swallowed and H311 — Toxic in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 92-87-5
Jingsj CID: J-814229-6
Molecular Formula: C₁₂H₁₂N₂
Molecular Weight: 184.237 g/mol
Category: Organic Bases
Last updated: 8/21/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point	127-128 °C
Boiling Point	402°C
Density	1.2±0.1 g/cm3
Flash Point	11 °C
Exact Mass	184.100052
PSA	52.04000
LogP	1.56
Vapor Pressure	0.0±0.8 mmHg at 25°C
Refractive Index	1.667
Additional Property	Sparingly soluble.

GHS Safety & Compliance

Flammable / Acute Toxicity / Health Hazard / Environmental HazardSignal word: Danger

H225 — Highly flammable liquid and vapour
H301 — Toxic if swallowed
H311 — Toxic in contact with skin
H331 — Toxic if inhaled
H350 — May cause cancer
H370 — Causes damage to organs
H411 — Toxic to aquatic life with long lasting effects

Customs & Trade Information

HS Code	2921590020
Summary	2921590020 benzidine。supervision conditions:89(articles on the list of prohibited export goods,articles on the list of prohibited import goods)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:6.5%。general tariff:30.0%

Frequently Asked Questions

What is the CAS number of Benzidine?

The CAS number of Benzidine is 92-87-5.

What are the molecular formula and molecular weight of Benzidine?

Benzidine has molecular formula C12H12N2 and molecular weight 184.237 g/mol.

Is Benzidine hazardous?

Benzidine has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H301 — Toxic if swallowed; H311 — Toxic in contact with skin.

What are the upstream and downstream products of Benzidine?

For Benzidine, Upstream Products: 4,4'-Dinitrobiphenyl, 4-Bromoaniline, 4-Chloroaniline; Downstream Products: 4'-Amino-[1,1'-biphenyl]-4-carboxylic acid, 4'-Aminobiphenyl-4-carbonitrile, 4,4'-Difluorobiphenyl.

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. "Benzidine (CAS 92-87-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-814229-6 (accessed 2026-11-07).

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