Description

n-Thionylaniline CAS NO 1122-83-4 is a specialized organosulfur compound featuring a sulfinyl group attached to an aniline moiety, serving as a versatile chemical intermediate. Its primary value lies in its role as a key building block for synthesizing more complex molecules, particularly in the development of pharmaceuticals and advanced materials. This product is essential for R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to introduce sulfur-based functionalities into their target compounds.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of sulfonamide-based drugs and other active pharmaceutical ingredients (APIs) with specific biological activities.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides where the thionylaniline structure imparts desired efficacy.
• Ligand and Catalyst Development: Serves as a starting material for creating specialized ligands used in asymmetric catalysis and transition metal complexes.
• Polymer and Material Science: Incorporated into monomers or additives to develop polymers with enhanced properties such as thermal stability or specific reactivity.
• Organic Synthesis Research: Employed in academic and industrial R&D for constructing complex heterocyclic compounds and exploring new synthetic methodologies.
• Dye and Pigment Manufacturing: Acts as an intermediate in the production of certain sulfur-containing dyes and functional colorants.

Basic Information

Product Name	n-Thionylaniline
CAS No.	1122-83-4
Molecular Formula	C6H7NOS
Molecular Weight	141.19 g/mol
Synonyms	Benzenesulfinamide, N-phenyl-; N-Phenylbenzenesulfinamide; Phenylsulfinylamine; Aniline N-sulfoxide; Sulfinylbisbenzene; Thiobenzanilide S-oxide; N-Sulfinylaniline; Phenyl sulfinyl amine
EINECS	214-356-5

Quality Control

Our n-Thionylaniline is manufactured under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including identification by spectroscopic methods and quantitative purity assessment. A Certificate of Analysis (COA) detailing specific results for identity, assay, and impurity profiles is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and 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 minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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