4-Hydroxybenzoic acid, 99%, Thermo Scientific Chemicals

Description

4-Hydroxybenzoic acid is used as an intermediate for dyes, antiseptics and active pharmaceutical ingredients. It is also used as a food preservative, corrosion inhibitor, anti-oxidant and an emulsifier. It reacts with 6-hydroxynaphthalene-2-carboxylic acid to prepare aromatic polyester called Vectran fiber. It acts as a precursor to prepare p-hydroxyphenylbenzoate, p-acetoxybenzoyl chloride and 4,4'-dihydroxybenzophenone. Further, it is used in paint additives, coating additives, processing aids, electrical and electronic products. In addition to this, it acts as a preservative in cosmetics and some ophthalmic solutions.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
4-Hydroxybenzoic acid is used as an intermediate for dyes, antiseptics and active pharmaceutical ingredients. It is also used as a food preservative, corrosion inhibitor, anti-oxidant and an emulsifier. It reacts with 6-hydroxynaphthalene-2-carboxylic acid to prepare aromatic polyester called Vectran fiber. It acts as a precursor to prepare p-hydroxyphenylbenzoate, p-acetoxybenzoyl chloride and 4,4′-dihydroxybenzophenone. Further, it is used in paint additives, coating additives, processing aids, electrical and electronic products. In addition to this, it acts as a preservative in cosmetics and some ophthalmic solutions.

Solubility
Soluble in water, alcohol, ethanol, ether, n-butanol and acetone. Slightly soluble in chloroform. Insoluble in carbon disulfide.

Notes
Incompatible with strong oxidizing agents.

Specifications

Chemical Identifiers

• CAS: 99-96-7
• Molecular Formula: C7H6O3
• Molecular Weight (g/mol): 138.12
• MDL Number: MFCD00002547
• InChI Key: FJKROLUGYXJWQN-UHFFFAOYSA-N
• Synonym: p-hydroxybenzoic acid, 4-carboxyphenol, benzoic acid, 4-hydroxy, p-salicylic acid, benzoic acid, p-hydroxy, para-hydroxybenzoic acid, 4-hydroxybenzoesaeure, p-carboxyphenol, 4-hydroxy benzoic acid, p-oxybenzoesaure german
• PubChem CID: 135
• ChEBI: CHEBI:30763
• IUPAC Name: 4-hydroxybenzoic acid
• SMILES: OC(=O)C1=CC=C(O)C=C1

• Melting Point: 213°C to 218°C
• Flash Point: 199°C (390°F)
• Assay Percent Range: 99%
• Quantity: 250 g
• Beilstein: 970950
• Merck Index: 14,4812
• Solubility Information: Soluble in water,alcohol,ethanol,ether,n-butanol and acetone. Slightly soluble in chloroform. Insoluble in carbon disulfide.
• Formula Weight: 138.12
• Percent Purity: 99%
• Chemical Name or Material: 4-Hydroxybenzoic Acid

Safety and Handling

Hazard Category	H318-H335
Hazard Statement	GHS H Statement H315-H319-H335
Precautionary Statement	P261-P271-P280-P304+P340-P305+P351+P338-P310-P312-P501c
EINECSNumber	202-804-9
RTECSNumber	DH1925000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only