Description

4-Chloro-2-Mercaptobenzaldehyde is a versatile aromatic aldehyde derivative that serves as a critical synthetic intermediate in advanced organic chemistry. Its unique structure, featuring both a formyl group and a thiol moiety, makes it a valuable building block for constructing complex heterocyclic systems and functional materials. This compound is primarily sought after by research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for applications in drug discovery and material science.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of benzothiazole, benzoxazole, and thiazolidinone derivatives, which are core scaffolds in numerous active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the development of novel fungicides, herbicides, and plant growth regulators that leverage the bioactivity of sulfur-containing heterocycles.
• Ligand and Catalyst Development: Serves as a starting material for creating chelating ligands used in transition metal catalysis and coordination chemistry.
• Material Science Research: Employed in the synthesis of monomers for conductive polymers, organic semiconductors, and nonlinear optical (NLO) materials.
• Chemical Biology Probes: Useful for synthesizing activity-based probes and bioconjugation reagents that target thiol-reactive sites in proteins.
• Dye and Pigment Intermediate: A building block for the production of sulfur-based dyes and organic pigments.

Basic Information

Product Name	4-Chloro-2-Mercaptobenzaldehyde
CAS No.	294675-00-6
Molecular Formula	C7H5ClOS
Molecular Weight	172.63 g/mol
Synonyms	2-Mercapto-4-chlorobenzaldehyde; 4-Chloro-2-sulfanylbenzaldehyde; 4-Chloro-2-thiobenzaldehyde; 4-Chloro-2-mercaptobenzaldehyde; 2-Formyl-5-chlorobenzenethiol; 5-Chloro-2-mercaptobenzaldehyde; Benzaldehyde, 4-chloro-2-mercapto-; 4-Chloro-2-thiolbenzaldehyde
EINECS	Contact for details

Quality Control

Our 4-Chloro-2-Mercaptobenzaldehyde is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming identity, purity, and impurity profiles. We adhere to cGMP principles for laboratory-scale and pilot-scale production to meet the stringent requirements of our R&D and process chemistry clients.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from heat, sparks, open flames, and strong oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.