Description

4-Hydroxy-18O, 95% is a stable isotope-labeled compound, specifically an oxygen-18 enriched version of 4-hydroxybenzaldehyde. This product matters for researchers and manufacturers requiring high-precision isotopic tracers in metabolic, pharmacokinetic, and environmental fate studies. It is primarily needed by professionals in pharmaceutical R&D, analytical chemistry, and advanced material science for use as an internal standard and in mechanistic investigations.

Application

• Isotopic Tracer in Metabolism Studies: Used to track the metabolic pathways and biotransformation of phenolic compounds in biological systems.
• Internal Standard for Mass Spectrometry: Serves as a critical reference standard in quantitative LC-MS and GC-MS analysis for accurate measurement of 4-hydroxybenzaldehyde and related metabolites.
• Pharmaceutical Research & Development: Employed in the synthesis of labeled drug candidates to study absorption, distribution, metabolism, and excretion (ADME) properties.
• Environmental Science Research: Applied in tracing the degradation and environmental fate of phenolic pollutants.
• Chemical Reaction Mechanism Studies: Utilized to elucidate reaction pathways and kinetics in organic synthesis and catalysis involving hydroxylbenzaldehyde derivatives.
• Synthesis of Labeled Fine Chemicals: Acts as a building block for the preparation of other oxygen-18 labeled complex molecules and intermediates.

Basic Information

Product Name	4-Hydroxy-18O, 95%
CAS No.	202468-50-6
Molecular Formula	C7H618O2
Molecular Weight	124.12 (approx.)
Synonyms	4-Hydroxybenzaldehyde-18O; p-Hydroxybenzaldehyde-18O; 4-Formylphenol-18O; 4-Hydroxybenzaldehyde (oxygen-18); Benzaldehyde, 4-hydroxy-18O; PHBA-18O; 18O-Labeled 4-hydroxybenzaldehyde; Para-hydroxybenzaldehyde-18O
EINECS	Contact for details

Quality Control

Every batch of 4-Hydroxy-18O, 95% is produced and analyzed under strict quality management protocols. Our products undergo rigorous quality testing to ensure compliance with industry standards for isotopic enrichment and chemical purity. Certificates of Analysis (COA) are available upon request, providing detailed results for isotopic purity, chemical assay, and identity confirmation.

Storage

Preserve in a tightly closed container, protected from light. Store at controlled room temperature (15-25°C) in a cool, dry, and well-ventilated area. Keep the container sealed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Isotopic Purity (18O)	≥ 95%
Chemical Purity (HPLC)	≥ 98%
Melting Point	115 - 118 °C
Heavy Metals	< 20 ppm
Residual Solvents (GC)	Complies with ICH guidelines

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