Description

p-Aminophenol Sulfate is a high-purity sulfate salt derivative of p-aminophenol, a key organic intermediate. This compound is valued for its role as a stable and reactive precursor in the synthesis of more complex molecules, particularly in the pharmaceutical and fine chemical sectors. It is essential for manufacturers requiring a reliable, high-quality building block for APIs, dyes, and photographic chemicals. Global industries rely on its consistent performance for critical synthesis processes.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of paracetamol (acetaminophen) and other analgesic APIs.
• Dye and Pigment Manufacturing: Used in the production of azo dyes and other colorants for textiles and inks.
• Photographic Chemicals: Serves as a developing agent component in photographic solutions.
• Fine Chemical Synthesis: Acts as a versatile building block for antioxidants, corrosion inhibitors, and other specialty organic compounds.
• Research & Development: Employed in academic and industrial R&D labs for novel organic synthesis pathways.
• Chemical Reagent: Used as a standard or reagent in analytical chemistry and quality control laboratories.

Basic Information

Product Name	p-Aminophenol Sulfate
CAS No.	15658-52-3
Molecular Formula	C12H16N2O6S
Molecular Weight	316.33 g/mol
Synonyms	4-Aminophenol sulfate; 4-Aminophenol hemisulfate salt; p-Aminophenol, sulfate (2:1); Paracetamol intermediate sulfate; PAPS; 4-Hydroxyaniline sulfate; 1-Amino-4-hydroxybenzene sulfate; 4-Aminophenol sulphuric acid salt
EINECS	Contact for details

Quality Control

Our p-Aminophenol Sulfate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets the high standards required for pharmaceutical and fine chemical applications. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing purity, impurity profiles, and physical characteristics. Our quality commitment ensures supply reliability and batch-to-batch consistency for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture. For long-term storage, consider using desiccants or storing under an inert atmosphere to minimize oxidation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition (Sulfated Ash)	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%
Solubility	Soluble in water

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