Description

4,5-Dihydro-5-Methyl-3,4-Diphenyl-5-Isoxazolol-13C2, 15N is a high-purity, isotopically labeled chemical reference standard, essential for advanced analytical research and method development. This compound is specifically valued for its role in quantitative mass spectrometry, where its stable isotope labels enable precise internal standardization and accurate metabolite tracking. It is a critical material for researchers and quality control laboratories in the pharmaceutical, agrochemical, and environmental testing sectors who require definitive standards for method validation and regulatory compliance.

Application

• Internal Standard for LC-MS/MS: Used as a quantitative reference in bioanalytical methods for drug and metabolite analysis in pharmacokinetic studies.
• Metabolite Identification & Tracing: Facilitates the identification and pathway elucidation of metabolites in drug discovery and development.
• Method Development & Validation: Serves as a critical component in developing and validating robust, GLP-compliant analytical methods.
• Environmental Analysis: Applied in the detection and quantification of trace chemical pollutants and their degradation products.
• Agrochemical Research: Used in studies investigating the fate, metabolism, and residue analysis of pesticides and herbicides.
• Forensic Toxicology: Employed as a reference standard for the accurate identification and quantification of specific compounds in forensic samples.
• Isotope Dilution Mass Spectrometry (IDMS): A key reagent for achieving high-accuracy, definitive measurements in clinical and environmental testing.

Basic Information

Product Name	4,5-Dihydro-5-Methyl-3,4-Diphenyl-5-Isoxazolol-13C2, 15N
CAS No.	1189468-68-5
Molecular Formula	C1613C2H15N15O
Molecular Weight	Contact for details
Synonyms	5-Methyl-3,4-diphenyl-4,5-dihydroisoxazol-5-ol-13C2,15N; 5-Methyl-3,4-diphenyl-2-isoxazolin-5-ol-13C2,15N; 4,5-Dihydro-5-methyl-3,4-diphenylisoxazol-5-ol-13C2,15N; Isoxazolin-5-ol-13C2,15N derivative; Isotopically labeled isoxazolol; [13C2,15N]-5-Methyl-3,4-diphenyl-4,5-dihydroisoxazol-5-ol; Stable Isotope Labeled Internal Standard (SIL-IS)
EINECS	Contact for details

Quality Control

Every batch of 4,5-Dihydro-5-Methyl-3,4-Diphenyl-5-Isoxazolol-13C2, 15N is manufactured and tested under strict quality management systems to ensure identity, purity, and isotopic enrichment meet the exacting standards required for research and regulatory applications. Our products undergo rigorous quality testing, including advanced spectroscopic and chromatographic methods, to ensure compliance with industry standards. Certificates of Analysis (COA) detailing batch-specific purity, isotopic purity (atom % 13C and 15N), and analytical data are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is sealed tightly after each use to minimize exposure to atmospheric humidity. For long-term storage, consider storing under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Isotopic Purity (13C)	≥ 99 atom % 13C
Isotopic Purity (15N)	≥ 99 atom % 15N
Chemical Purity	≥ 95%
Residual Solvents (GC)	Meets ICH guidelines

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