Description

Methyl (Z)-3-(p-Toluenesulfonyloxy)But-2-Enoate is a high-purity chemical intermediate featuring a reactive tosylate ester and an α,β-unsaturated ester moiety. This compound is valued for its role as a versatile building block in synthetic organic chemistry, enabling the controlled introduction of functionalized butenoate units. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of complex target molecules.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and plant growth regulators.
• Material Science Research: Serves as a monomer or cross-linking agent precursor in the development of specialty polymers and coatings.
• Organic Synthesis: Employed in cross-coupling reactions, Michael additions, and nucleophilic substitution reactions to construct complex molecular architectures.
• Chemical Biology: Useful for creating molecular probes and labeled compounds for biochemical research.

Basic Information

Product Name	Methyl (Z)-3-(p-Toluenesulfonyloxy)But-2-Enoate
CAS No.	1029612-18-7
Molecular Formula	C₁₂H₁₄O₅S
Molecular Weight	270.30 g/mol
Synonyms	Methyl (Z)-3-[(4-methylphenyl)sulfonyloxy]but-2-enoate; (Z)-Methyl 3-[(p-tolylsulfonyl)oxy]but-2-enoate; Methyl 3-[(4-methylphenyl)sulfonyloxy]-2-butenoate; (Z)-Methyl 3-(tosyloxy)but-2-enoate; Methyl (Z)-3-(tosyloxy)but-2-enoate; 2-Butenoic acid, 3-[(4-methylphenyl)sulfonyl]oxy]-, methyl ester, (Z)-; Tosyloxybutenoate methyl ester
EINECS	Contact for details

Quality Control

Our production of Methyl (Z)-3-(p-Toluenesulfonyloxy)But-2-Enoate adheres to stringent internal quality standards to ensure batch-to-batch consistency and reliability for your synthetic processes. Each lot is characterized by advanced analytical techniques, including HPLC, NMR, and GC-MS. 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, well-ventilated area at a controlled room temperature (typically 15-25°C). This material is moisture-sensitive (hygroscopic) and should be handled under an inert atmosphere for long-term storage to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Area %)
Water Content (KF)	≤ 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.