2-Phenylphenol CAS 90-43-7

Description

2-Phenylphenol, also known as orthophenylphenol (OPP), with the CAS number 90-43-7, is an organic compound that exists as white or light tan crystals or flakes. It is characterized by a mild, characteristic odor. Primarily recognized for its antimicrobial and antifungal properties, 2-Phenylphenol and its salts are widely used as preservatives and disinfectants across various industrial, agricultural, and sometimes even consumer applications.

Properties

Property	Value
CAS Number	90-43-7
Chemical Name	2-Phenylphenol
Alternate Names	Orthophenylphenol (OPP), o-Phenylphenol, 1,2-Biphenylol
Molecular Formula	C12​H10​O
Molecular Weight	Approximately $170.21\text{ g/mol}$
Appearance	White to light tan crystals or flakes
Melting Point	$56-58\text{ °C}$
Boiling Point	$280-282\text{ °C}$
Solubility	Slightly soluble in water, soluble in many organic solvents
Stability	Stable under normal conditions

Usage

2-Phenylphenol is primarily utilized for its preservative and disinfectant properties:

• Industrial Preservative: It is used to prevent the growth of mold, bacteria, and fungi in various industrial products such as adhesives, paints, textiles, and leather. For instance, it can be added to latex emulsions to extend their shelf life by inhibiting microbial degradation.
• Disinfectant: 2-Phenylphenol is a component in some disinfectant formulations used in hospitals, veterinary clinics, and other environments where hygiene is critical. It is effective against a broad spectrum of microorganisms. For example, certain cleaning solutions for surfaces may contain 2-Phenylphenol as an active antimicrobial agent.
• Agricultural Applications: In some regions, it is used as a post-harvest fungicide for fruits and vegetables to prevent spoilage during storage and transportation. For example, citrus fruits are sometimes treated with solutions containing 2-Phenylphenol to inhibit the growth of molds and decay.
• Wood Preservative: It can be used to protect wood against fungal rot and mildew, extending the lifespan of wooden structures and products.

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