Description

Thiosalicylic Acid CAS NO 147-93-3 is a sulfur-containing derivative of salicylic acid, serving as a versatile organic intermediate and building block. Its unique structure, featuring both a carboxylic acid and a thiol group, makes it a critical precursor in the synthesis of complex molecules. This compound is essential for manufacturers and researchers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients or functional materials.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing non-steroidal anti-inflammatory drugs (NSAIDs), antimicrobial agents, and other active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of certain herbicides, fungicides, and plant growth regulators.
• Chemical Research & Development: Serves as a versatile reagent in organic synthesis, particularly for introducing thiol or disulfide linkages into target molecules.
• Dye and Pigment Manufacturing: Acts as an intermediate in the synthesis of sulfur-containing dyes and organic pigments.
• Polymer Modification: Can be used to modify polymers or resins by introducing thiol functional groups for cross-linking or adhesion promotion.
• Chelating Agent Precursor: Useful in the synthesis of ligands and chelating agents for metal ions.

Basic Information

Product Name	Thiosalicylic Acid
CAS No.	147-93-3
Molecular Formula	C7H6O2S
Molecular Weight	154.19 g/mol
Synonyms	2-Mercaptobenzoic Acid; o-Mercaptobenzoic Acid; 2-Sulfanylbenzoic Acid; 2-Carboxyphenyl mercaptan; Thiosalicylic acid; Benzoic acid, 2-mercapto-; USAF EK-4960; NSC 163855
EINECS	205-701-5

Quality Control

Our Thiosalicylic Acid is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and impurity profiles. A Certificate of Analysis (COA) detailing the results for all critical parameters is provided with every shipment to guarantee traceability and batch-to-batch consistency for your processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and sources of ignition. Due to the presence of a thiol group, it is advisable to handle and store under an inert atmosphere for long-term stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	162 - 166 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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