Description

Butanethioic Acid, 3-Oxo-, o-Methyl Ester (9Ci) is a specialized thioketone ester compound with the CAS number 59081-25-3. This chemical serves as a valuable synthetic intermediate and building block in advanced organic synthesis, enabling the introduction of sulfur-containing functional groups. It is primarily utilized by R&D chemists and process development scientists in the pharmaceutical and agrochemical industries for creating novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly those requiring sulfur-based pharmacophores.
• Agrochemical Synthesis: Used in the research and development of new pesticides, herbicides, and fungicides.
• Organic Synthesis Reagent: Acts as a versatile reagent for introducing thiocarbonyl and ester functionalities in complex molecule construction.
• Material Science Research: Potential monomer or precursor in the development of specialty polymers and advanced materials.
• Chemical Research & Development: Serves as a critical standard or starting material in method development and exploratory chemistry.

Basic Information

Product Name	Butanethioic Acid, 3-Oxo-, o-Methyl Ester (9Ci)
CAS No.	59081-25-3
Molecular Formula	C5H8O2S
Molecular Weight	132.18 g/mol
Synonyms	3-Oxobutanethioic acid O-methyl ester; Methyl 3-oxobutanethioate; 3-Oxobutanoic acid thioanhydride with methyl alcohol; Acetoacetic acid methyl thioester; Methyl thiocetoacetate; 3-Ketobutyric acid methyl thioester; Thiobutanoic acid, 3-oxo-, methyl ester
EINECS	Contact for details

Quality Control

Our production of Butanethioic Acid, 3-Oxo-, o-Methyl Ester adheres to stringent internal quality standards to ensure batch-to-batch consistency and reliability for your synthetic processes. Each lot is characterized using advanced analytical techniques including GC, HPLC, and NMR. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in amber glass or opaque packaging during storage.

Specification

Item	Specification
Appearance	Clear to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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