Description

4-Mercaptocinnamic Acid Methyl Ester is a versatile sulfur-containing cinnamic acid derivative that serves as a critical building block in organic synthesis. Its unique thiol and ester functional groups make it a valuable intermediate for constructing complex molecules with applications in pharmaceuticals and materials science. This compound is particularly sought after by research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for the development of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of drug candidates, particularly those targeting cysteine proteases or requiring thiol conjugation.
• Peptide Mimetics & Conjugation: Used in the design and synthesis of peptide analogs and for site-specific bioconjugation via its reactive thiol group.
• Material Science Precursor: Serves as a monomer or functionalizing agent in the development of polymers with specific optical or electronic properties.
• Agrochemical Synthesis: Intermediate in the production of novel herbicides, fungicides, or plant growth regulators.
• Chemical Biology Probes: Utilized in the creation of activity-based probes (ABPs) and other tools for studying enzymatic activity and protein function.
• Ligand Synthesis for Catalysis: Building block for creating chiral or functionalized ligands used in asymmetric catalysis.

Basic Information

Product Name	4-Mercaptocinnamic Acid Methyl Ester
CAS No.	90843-37-1
Molecular Formula	C10H10O2S
Molecular Weight	194.25 g/mol
Synonyms	Methyl 4-mercaptocinnamate; Methyl (E)-3-(4-sulfanylphenyl)prop-2-enoate; 4-Thiolcinnamic Acid Methyl Ester; (E)-Methyl 3-(4-mercaptophenyl)acrylate; p-Mercaptocinnamic Acid Methyl Ester; 4-Sulfanyl-cinnamic acid methyl ester; 4-Mercaptobenzeneacrylic Acid Methyl Ester
EINECS	Contact for details

Quality Control

Our 4-Mercaptocinnamic Acid Methyl Ester is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by NMR and IR spectroscopy, to ensure it meets exacting standards for research and development use. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability and consistent quality.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry place at 15-25°C. Due to its sensitivity to oxidation, the container should be flushed with inert gas after each opening to maximize shelf life.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%

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