Description

Benzoic Acid, 4-Hydroxy-, Ion(1-) is the anionic form of 4-hydroxybenzoic acid, a key phenolic acid derivative with significant industrial utility. This compound is valued for its role as a versatile chemical intermediate and its inherent functional properties, including chelation and pH-dependent reactivity. It is essential for manufacturers in the pharmaceutical, cosmetic, and specialty chemical sectors seeking reliable, high-purity building blocks for synthesis and formulation.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of parabens (alkyl esters of p-hydroxybenzoic acid) used as preservatives, and other active pharmaceutical ingredients (APIs).
• Cosmetic & Personal Care: Employed in the production of preservatives for lotions, creams, and shampoos, leveraging its antimicrobial properties when derivatized.
• Food & Beverage Industry: Used in the manufacture of food-grade preservatives and antioxidants to enhance shelf-life and product stability.
• Chemical Synthesis: Acts as a versatile building block for organic synthesis, including the production of liquid crystal polymers, dyes, and plasticizers.
• Agrochemical Formulations: Utilized in the development of certain herbicides and fungicides as a stabilizing agent or functional intermediate.
• Research & Development: Serves as a standard or reagent in analytical chemistry and biochemical research laboratories.

Basic Information

Product Name	Benzoic Acid, 4-Hydroxy-, Ion(1-)
CAS No.	456-23-5
Molecular Formula	C7H5O3-
Molecular Weight	137.11 g/mol (for the acid form, C7H6O3)
Synonyms	p-Hydroxybenzoate Ion; 4-Hydroxybenzoate; Paraben Ion; PHBA Ion; Benzoic acid, 4-hydroxy-, ion(1-); 4-Carboxyphenolate; p-Carboxyphenoxide; p-Hydroxybenzoic acid anion
EINECS	Contact for details

Quality Control

Our production of Benzoic Acid, 4-Hydroxy-, Ion(1-) adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. Products undergo rigorous analytical testing, including chromatography and spectroscopic methods, to meet relevant industry standards. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from strong oxidizing agents and incompatible materials. For long-term storage under inert atmosphere, please contact for specific recommendations.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.