Guangdong, China
Business Type:
Trading Company
Number of Employees:
Year of Establishment:
Management System Certification:
ISO 9001, ISO 14000
Average Lead Time:
Peak season lead time: within 15 workday
Off season lead time: within 15 workday
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Naphazoline Hydrochloride, Naphazoline HCl, off-White Crystaline Powder manufacturer / supplier in China, offering Naphazoline HCl Anti Inflammatory Analgesic Powder CAS: 550-99-2, 302-22-7 Progesterone Hormon Chlormadinone Acetate for Women, 99% Purity GMP Manufacturers with Crepis Base CAS 171596-29-5 and so on.

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Naphazoline HCl Anti Inflammatory Analgesic Powder CAS: 550-99-2

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Min. Order: 10 Pieces
Port: Shanghai, China
Production Capacity: 100ton/Month
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
Powder: Yes
Customized: Non-Customized
Certification: GMP, HSE, ISO 9001, USP, BP
Suitable for: Adult
State: Powder
Purity: >99%

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Basic Info

Model NO.: CAS: 550-99-2 Naphazoline HCL
Synonyms: Naphconforte;Niazol;Privinehydrochloride
Assay: 99%
CAS No.: 550-99-2
Molecular Formula: C14h15cln2
Molecular Weight: 246.74
Melting Point: 254-260 °c
Boiling Point: 440.5°c at 760 Mmhg
Flashing Point: 220.2°c
Appearance: White to off-White Crystaline Powder
Application: Sympathomimetic Agent, Vasoconstrictor
Trademark: SMQ
Transport Package: Foil Bag or as Per Your Demand
Specification: Medicine grade
Origin: China
HS Code: 2933290090

Product Description

Naphazoline HCl anti Inflammatory analgesic powder CAS: 550-99-2

Quick details:

Product Name: Naphazoline hydrochloride
Synonyms: 2-(1-Naphthylmethyl)-2-imidazoline hydrochloride; Naphazoline HCl; Naphthasoliumchloride; Privinehydrochloride;
Assay: 99%
CAS No.: 550-99-2
EINECS No.: 208-989-2
Molecular Formula: C14H15ClN2
Molecular Weight: 246.74
Melting point: 254-260 ° C
Boiling point: 440.5° C at 760 mmHg
Flashing point: 220.2° C
Solubillity in water: 170 g/L (20º C)
Sensibility: Hygroscopic
Appearance: White to off-white crystaline powder
Packing: 1kg/foil bag
Application: Sympathomimetic agent, vasoconstrictor


Naphazoline hydrochloride is the common name for 2-(1-naphthylmethyl)-2-imidazoline hydrochloride. It is a sympathomimetic agent with marked alpha adrenergic activity. It is a vasoconstrictor with a rapid action in reducing swelling when applied to mucous membrane. It acts on alpha-receptors in the arterioles of the conjunctiva to produce constriction, resulting in decreased congestion. It is an active ingredient in several over-the-counter formulations including Clear Eyes and Naphcon eye drops.


Naphazoline is a decongestant used to relieve redness, puffiness, and itchy/watering eyes due to colds, allergies, or eye irritations (smog, swimming, or wearing contact lenses). It is known as a sympathomimetic (alpha receptor agonist) that works in the eye to decrease congestion.
Some brands of naphazoline eye drops also contain other ingredients. Lubricants (such as glycerin, hypromellose, or polyethylene glycol 300) help protect the eyes from more irritation. Zinc sulfate, an astringent, helps reduce redness and irritation.

AppearanceWhite crystalline powderPass
Melting point254.0~260.0°C254.1~257.7°C
Loss on drying0.50% Max0.10%
Residue on ignition0.20% max0.08%
Total impuritiesnot more than 2.0%Pass
AlcoholNot more than 300 ppmPass

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