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1,2-Diamino-3-nitrobenzene

Also known as: 3-Nitro-1,2-benzenediamine, 3-Nitro-o-phenylenediamine, 3-Nitrobenzene-1,2-diamine, 1,2-Benzenediamine, 3-nitro-, 2-Amino-3-nitroaniline, 3-Nitro-1,2-phenylenediamine, 3-Nitro-o-phenylenediamine, TIMTEC-BB SBB004046

1,2-Diamino-3-nitrobenzene (CAS 3694-52-8) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C6H7N3O2 and a molecular weight of 153.139 g/mol. Key properties include a melting point of 156-159 °C(lit.), a boiling point of 369.7±22.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 177.4±22.3 °C. 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.
3694-52-8
Jingsj CID
J-930753-3
Molecular Formula
C6H7N3O2
Molecular Weight
153.139 g/mol
Category
Organic Bases
Last updated
8/21/2026
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Physicochemical Properties

Melting Point156-159 °C(lit.)
Boiling Point369.7±22.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point177.4±22.3 °C
Exact Mass153.053833
PSA97.86000
LogP1.65
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.708

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Frequently Asked Questions

What is the CAS number of 1,2-Diamino-3-nitrobenzene?

The CAS number of 1,2-Diamino-3-nitrobenzene is 3694-52-8.

What are the molecular formula and molecular weight of 1,2-Diamino-3-nitrobenzene?

1,2-Diamino-3-nitrobenzene has molecular formula C6H7N3O2 and molecular weight 153.139 g/mol.

Is 1,2-Diamino-3-nitrobenzene hazardous?

1,2-Diamino-3-nitrobenzene 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 1,2-Diamino-3-nitrobenzene?

For 1,2-Diamino-3-nitrobenzene, Upstream Products: 2,6-Dinitroaniline, 4-Methoxy-o-phenylenediamine, 1-chloro-2-nitrobenzene; Downstream Products: 1-Methyl-4-nitro-1H-benzo[d]imidazole, 1H-Benzimidazol-7-amine, 4-Nitro-2,1,3-benzoselenadiazole.

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

Last updated:

How to cite: Jingsj. "1,2-Diamino-3-nitrobenzene (CAS 3694-52-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-930753-3 (accessed 2026-11-09).

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