Description

5-Isoxazolecarboxylicacid,3-(1,1-Dimethylethyl)-(9Ci) is a specialized heterocyclic carboxylic acid derivative that serves as a critical building block in advanced organic synthesis. This compound is valued for its unique isoxazole core, which imparts specific reactivity and structural features essential for developing novel active molecules. It is primarily utilized by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of new chemical entities, including potential active pharmaceutical ingredients (APIs) and crop protection agents.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those targeting neurological or anti-inflammatory pathways.
• Agrochemical Research: Building block for developing new herbicides, fungicides, or insecticides with novel modes of action.
• Material Science: Used in the research and development of advanced polymers or ligands for catalytic systems.
• Academic & Contract Research: Essential reagent for methodological studies in heterocyclic and medicinal chemistry within university and CRO laboratories.
• Custom Synthesis: Serves as a starting material for contract manufacturing organizations (CMOs) producing bespoke fine chemicals for client projects.

Basic Information

Product Name	5-Isoxazolecarboxylicacid,3-(1,1-Dimethylethyl)-(9Ci)
CAS No.	133674-40-5
Molecular Formula	C8H11NO3
Molecular Weight	169.18 g/mol
Synonyms	3-tert-Butyl-5-isoxazolecarboxylic acid; 3-(tert-Butyl)isoxazole-5-carboxylic acid; 5-Carboxy-3-tert-butylisoxazole; 3-(1,1-Dimethylethyl)-5-isoxazolecarboxylic acid; 3-tert-Butyl-1,2-oxazole-5-carboxylic acid
EINECS	Contact for details

Quality Control

Our production of 5-Isoxazolecarboxylicacid,3-(1,1-Dimethylethyl)-(9Ci) adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity for research and development applications. Each lot is characterized using advanced analytical techniques including NMR, HPLC, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your regulatory and R&D documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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