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Naphazoline

Also known as: Naphthizine, Privine, Naphcon, Sanorin, Clearine, Clera, Coldan, Antan, Nafazoline, Nafazolina, 2-(1-Naphthylmethyl)-4,5-dihydro-1H-imidazole, 2-(Naphthalen-1-ylmethyl)-4,5-dihydro-1H-imidazole, 1H-Imidazole, 4,5-dihydro-2-(1-naphthalenylmethyl)-, 2-(1-Naphthylmethyl)-2-imidazoline

Naphazoline (CAS 835-31-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C14H14N2 and a molecular weight of 210.274 g/mol. Key properties include a melting point of 254ºC, a boiling point of 440.5±24.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 220.2±22.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
835-31-4
Jingsj CID
J-1961987-5
Molecular Formula
C14H14N2
Molecular Weight
210.274 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point254ºC
Boiling Point440.5±24.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point220.2±22.9 °C
Exact Mass210.115692
PSA24.39000
LogP3.88
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.640
Storage Conditions2-8°C

Activity & Biological Data

TargetTNF-α IL-1β IL-6 IL-4
Additional Information[1]. Quan L, et, al. Treatment with olopatadine and naphazoline hydrochloride reduces allergic conjunctivitis in mice through alterations in inflammation, NGF and VEGF. Mol Med Rep. 2016 Apr;13(4):3319-25. [2]. Yamaguchi I, et, al. Central and peripheral adrenergic mechanisms regulating gastric secretion in the rat. J Pharmacol Exp Ther. 1977 Oct;203(1):125-31.

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Naphazoline?

The CAS number of Naphazoline is 835-31-4.

What are the molecular formula and molecular weight of Naphazoline?

Naphazoline has molecular formula C14H14N2 and molecular weight 210.274 g/mol.

What are the upstream and downstream products of Naphazoline?

For Naphazoline, Upstream Products: 1-Naphthaleneacetic acid, Ethylenediamine monohydrate, 1-Naphthylacetonitrile; Downstream Products: N-(2-Aminoethyl)-2-(naphthalen-1-yl)acetamide.

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

Last updated:

How to cite: Jingsj. "Naphazoline (CAS 835-31-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1961987-5 (accessed 2026-11-09).

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