Description

Phenol,4-Amino-, 1-(4-Methylbenzenesulfonate) is an important organic intermediate, specifically a tosylate derivative of 4-aminophenol. This compound matters for its role as a versatile building block in the synthesis of more complex molecules, offering enhanced stability and reactivity for specific chemical transformations. Industries that need it include pharmaceutical manufacturers for active pharmaceutical ingredient (API) synthesis, agrochemical producers for crop protection agents, and research laboratories developing dyes, pigments, and specialty polymers.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of various APIs, including analgesics and antipyretics.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Manufacturing: Serves as a precursor for azo dyes and other colorants.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the production of specialty resins and polymers.
• Photographic Chemicals: Utilized in the formulation of certain developers and sensitizers.
• Research & Development: Employed in organic synthesis for creating novel compounds in academic and industrial R&D settings.

Basic Information

Product Name	Phenol,4-Amino-, 1-(4-Methylbenzenesulfonate)
CAS No.	3899-93-2
Molecular Formula	C13H13NO4S
Molecular Weight	279.31 g/mol
Synonyms	4-Aminophenyl p-Toluenesulfonate; p-Aminophenyl Tosylate; 4-Hydroxyaniline Tosylate; 1-(4-Methylphenylsulfonyloxy)-4-aminobenzene; APTS; 4-APT; Tosyloxy Aniline; N-(4-Hydroxyphenyl)-4-methylbenzenesulfonamide (tautomeric form)
EINECS	Contact for details

Quality Control

Our Phenol,4-Amino-, 1-(4-Methylbenzenesulfonate) is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for synthetic applications. While we offer standard technical and high-purity grades, specifications can be adjusted to meet specific project requirements. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available for every shipment 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). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be amber-colored or stored in dark conditions.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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