2,3-Diaminonaphthalene

Also known as: 2,3-Naphthalenediamine, Naphthalene-2,3-diamine, 2,3-Diaminonaphthalene (DAN), MFCD00004116, EINECS 212-241-0

2,3-Diaminonaphthalene (CAS 771-97-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H10N2 and a molecular weight of 158.200 g/mol. Key properties include a melting point of 197-203 °C, a boiling point of 370.6±15.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 212.3±19.9 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 771-97-1
Jingsj CID: J-1112992-3
Molecular Formula: C₁₀H₁₀N₂
Molecular Weight: 158.200 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	197-203 °C
Boiling Point	370.6±15.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	212.3±19.9 °C
Exact Mass	158.084396
PSA	52.04000
LogP	1.28
Vapor Pressure	0.0±0.8 mmHg at 25°C
Refractive Index	1.757

GHS Safety & Compliance

IrritantSignal word: Warning

H302 — Harmful if swallowed
H315 — Causes skin irritation
H319 — Causes serious eye irritation
H335 — May cause respiratory irritation

Activity & Biological Data

Additional Information	[1]. Tian J, et al. Poly(2,3-diaminonaphthalene) microspheres as a novel quencher for fluorescence-enhanced nucleic acid detection. Analyst. 2011 Jun 7;136(11):2221-4. [2]. Martínez-Tomé MJ, et al. Immobilization and characterization of 2,3-diaminonaphthalene/cyclodextrin complexes in a sol-gel matrix: a new fluorimetric sensor for nitrite. J Fluoresc. 2009 Jan;19(1):119-25. [3]. Grisham MB, et al. Effects of aminosalicylates and immunosuppressive agents on nitric oxide-dependent N-nitrosation reactions. Biochem Pharmacol. 1994 May 18;47(10):1897-902.

Additional Information

[1]. Tian J, et al. Poly(2,3-diaminonaphthalene) microspheres as a novel quencher for fluorescence-enhanced nucleic acid detection. Analyst. 2011 Jun 7;136(11):2221-4. [2]. Martínez-Tomé MJ, et al. Immobilization and characterization of 2,3-diaminonaphthalene/cyclodextrin complexes in a sol-gel matrix: a new fluorimetric sensor for nitrite. J Fluoresc. 2009 Jan;19(1):119-25. [3]. Grisham MB, et al. Effects of aminosalicylates and immunosuppressive agents on nitric oxide-dependent N-nitrosation reactions. Biochem Pharmacol. 1994 May 18;47(10):1897-902.

Customs & Trade Information

HS Code	2921590090
Summary	2921590090. other aromatic polyamines and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2,3-Diaminonaphthalene?

The CAS number of 2,3-Diaminonaphthalene is 771-97-1.

What are the molecular formula and molecular weight of 2,3-Diaminonaphthalene?

2,3-Diaminonaphthalene has molecular formula C10H10N2 and molecular weight 158.200 g/mol.

Is 2,3-Diaminonaphthalene hazardous?

2,3-Diaminonaphthalene has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 2,3-Diaminonaphthalene?

For 2,3-Diaminonaphthalene, Upstream Products: 2,3-Naphthalenediol, 3-Amino-2-naphthol, 2-Naphthylamine.

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. "2,3-Diaminonaphthalene (CAS 771-97-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1112992-3 (accessed 2026-11-09).

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