p-Anisidine 99%

0.002,750.00

p-Anisidine (also known as 4-methoxyaniline) is an organic compound used primarily as an intermediate in the production of dyes and pharmaceuticals, and also as a reagent for detecting aldehydes and ketones in fats and oils. It is a substituted aniline, where a methoxy group replaces a hydrogen atom.

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p-Anisidine, also known as 4-methoxyaniline, is an organic compound. It's a substituted aniline, meaning it's derived from aniline (C6H5NH2) where a methoxy group (CH3O-) has replaced a hydrogen atom at the para (4-) position. Here's a more detailed description:

Chemical Structure and Properties:

  • Chemical Formula: CH3OC6H4NH2
  • Molar Mass: 123.15 g/mol
  • Physical State: Crystalline solid
  • Appearance: Typically appears as colorless to pale yellow crystals.
  • Odor: Characteristic aromatic amine odor.
  • Melting Point: Around 57-59 °C
  • Boiling Point: Approximately 243 °C
  • Solubility: Slightly soluble in water, but more soluble in organic solvents like ethanol, ether, and chloroform.
  • Basicity: Like other aromatic amines, p-anisidine is a weak base.

Applications and Uses:

  • Dye Intermediate: A significant application is in the production of azo dyes. It serves as a crucial intermediate in the synthesis of various colorants used in textiles, printing, and other industries.
  • Pharmaceuticals: p-Anisidine is employed in the synthesis of certain pharmaceuticals and other organic compounds.
  • Analytical Reagent: It can be used as a reagent in analytical chemistry, particularly for the detection of aldehydes and ketones in fats and oils. This is because p-anisidine reacts with these carbonyl compounds to form colored products, which can be quantified.
  • Other Organic Synthesis: p-Anisidine is a useful building block in various organic synthetic reactions.

Safety Considerations:

  • Toxicity: p-Anisidine is considered toxic and can be harmful if ingested, inhaled, or absorbed through the skin.
  • Irritant: It can cause irritation to the skin, eyes, and respiratory tract.
  • Potential Carcinogen: There are concerns about its potential carcinogenic properties. Appropriate safety precautions, including wearing protective gloves, goggles, and respiratory protection, are essential when handling this compound.
  • Environmental Hazards: It can be harmful to aquatic life.

Key Characteristics:

  • The methoxy group (-OCH3) significantly influences its reactivity and properties.
  • It's an aromatic amine, which means it undergoes reactions typical of this class of compounds.
  • Its use in dye synthesis is tied to its ability to undergo diazonium coupling reactions.

In summary, p-anisidine is a versatile organic compound with applications in dye manufacturing, pharmaceuticals, and analytical chemistry. However, it must be handled with care due to its toxicity.

Additional information

Weight N/A
CAS number

104-94-9

Chemical formula

C7H9NO

Molar mass

123.15 g/mol

Physical state

Crystalline solid (can range in color from colorless to brown)

Odor

Characteristic amine odor (sometimes described as "fishy")

Melting point

56-59 °C

Boiling point

243 °C

Density

1.07 g/cm³

Solubility in water

Sparingly soluble

Flash point:

122°C

Autoignition temperature

515°C

Dye Content

Not a dye itself, but an intermediate used in dye production.

Vapor pressure

Relatively low

UN number

UN 2431

Flammability

Combustible

Carcinogenicity

There are concerns about potential carcinogenic properties. It is important to treat this chemical with caution.

Grade

CP

Size

500 gm, 5 kg, 25 kg

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