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ortho nitro anisole
ortho nitro anisole
2 nitroanisole
o nitro anisole
ortho nitro anisole
2 nitroanisole
o nitro anisole

CAS 91-23-6
2-Nitroanisole Wholesale

Ortho nitro anisole, also known as o-nitroanisole or simply ONA (CAS 91-23-6), is an organic compound with the chemical formula C7H6NO3. It is a yellowish liquid with a strong, pungent odor and is used as an intermediate in the production of several chemicals, including fragrances, dyes, and pharmaceuticals. ONA is also used as a solvent for resins and as a reactive diluent in adhesives production. It is important to handle and use ONA with caution, as it can be highly toxic if ingested or inhaled. Proper safety measures should be taken to ensure the safety of individuals and the environment when working with this chemical.


Ortho nitro anisole is colorless to light yellow flammable liquid. Soluble in ethanol and diethyl ether, insoluble in water. Used in dye, medicine, spices and other industries, can be used to manufacture anisole, dianisamine, chromosol AS-OL, bright red base B, direct lake blue 6B, active blue KD-7G, detergent LS, etc.

Technical Information of 2-Nitroanisole


Density1.2±0.1 g/cm3
Boiling Point277.0±0.0 °C at 760 mmHg
Melting Point9-12 °C(lit.)
Molecular FormulaC7H7NO3
Molecular Weight153.135
Flash Point127.0±21.8 °C
Precise Quality153.042587
PSA55.05
LogP1.73
Appearance CharacteristicsLight yellow to reddish liquid
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.543



Is 2 Ortho Nitro Anisole Harmful?


· Environmental toxicity: ONA can be toxic to the environment and wildlife if released into the environment in large quantities. There are ongoing studies to determine the environmental impact of ONA and ways to minimize its release and potential harm.


· Health effects: ONA has been found to have toxic effects on humans if inhaled or ingested in large quantities. There are ongoing studies to understand the health effects of ONA and ways to minimize exposure to this chemical.


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