Description

Acetic Acid, [(1-Oxido-4-Pyridinyl)Thio]-, Methyl Ester (9Ci) is a specialized organosulfur compound featuring a pyridine N-oxide moiety, serving as a valuable synthetic intermediate and building block in advanced chemical synthesis. Its unique structure makes it a critical reagent for researchers and manufacturers developing novel pharmaceuticals, agrochemicals, and functional materials. This high-purity chemical is essential for applications requiring precise molecular modifications, particularly in medicinal chemistry and material science.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing sulfur or heterocyclic motifs.
• Agrochemical Research: Used in the development and production of novel pesticides, herbicides, and fungicides.
• Ligand and Catalyst Synthesis: Serves as a precursor for creating specialized ligands used in transition metal catalysis and coordination chemistry.
• Material Science: Employed in the research and development of advanced polymers, liquid crystals, and organic electronic materials.
• Chemical Biology Probes: Utilized in the design and synthesis of molecular probes for studying biological processes and enzyme mechanisms.
• Custom Synthesis and Contract Manufacturing: A crucial starting material for custom synthesis projects and fine chemical production under cGMP conditions.

Basic Information

Product Name	Acetic Acid, [(1-Oxido-4-Pyridinyl)Thio]-, Methyl Ester (9Ci)
CAS No.	56839-40-8
Molecular Formula	C8H9NO3S
Molecular Weight	199.23 g/mol
Synonyms	Mercaptopyridine N-Oxide Acetate Methyl Ester; 4-(Methoxycarbonylmethylsulfanyl)pyridine 1-oxide; Methyl 2-((1-oxidopyridin-1-ium-4-yl)thio)acetate; 4-(Methyloxycarbonylmethylthio)pyridine N-oxide; Acetic acid, 2-[(1-oxido-4-pyridinyl)thio]-, methyl ester; Methyl (1-oxidopyridin-1-ium-4-yl)sulfanylacetate
EINECS	Contact for details

Quality Control

Our Acetic Acid, [(1-Oxido-4-Pyridinyl)Thio]-, Methyl Ester (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) documenting all critical quality attributes are available upon request, supporting compliance in regulated environments.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from strong oxidizing agents and strong bases. The container must be kept tightly closed in a dry and well-ventilated place.

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%
Residue on Ignition	≤ 0.1%

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