Description

Calcium Bis(4-Hydroxybenzenesulphonate) is a high-purity calcium salt of 4-hydroxybenzenesulfonic acid, widely recognized for its utility as a key intermediate and functional additive. This compound is valued for its role in synthesizing specialty chemicals and its performance in various industrial formulations. It is primarily sought by manufacturers in the pharmaceutical, agrochemical, and specialty polymer sectors for applications requiring precise chemical functionality and reliable quality.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and other fine chemicals.
• Agrochemical Formulations: Serves as a key component or intermediate in the production of certain herbicides and plant growth regulators.
• Polymer & Resin Production: Acts as a functional additive or cross-linking agent in specialty polymer synthesis.
• Chemical Synthesis: Employed as a versatile building block in organic synthesis for introducing sulfonate and phenolic functionalities.
• Laboratory Research: Used as a high-purity reagent in chemical research and development.
• Industrial Catalysis: Can function as a catalyst or catalyst precursor in specific organic reactions.

Basic Information

Product Name	Calcium Bis(4-Hydroxybenzenesulphonate)
CAS No.	127-83-3
Molecular Formula	C12H10CaO8S2
Molecular Weight	386.39 g/mol
Synonyms	Calcium 4-Hydroxybenzenesulfonate; Calcium p-Phenolsulfonate; Calcium Hydroxybenzenesulfonate; 4-Hydroxybenzenesulfonic Acid Calcium Salt; Phenolsulfonic Acid Calcium Salt; p-Hydroxybenzenesulfonic Acid Calcium Salt; Calcium Phenol-4-sulfonate
EINECS	204-871-1

Quality Control

Our Calcium Bis(4-Hydroxybenzenesulphonate) is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. The product undergoes rigorous analytical testing, including identification, assay, and impurity profiling. Certificates of Analysis (COA) detailing the specific results for each batch are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%

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