Description

4-Ethylguaiacol-D5 is a deuterium-labeled isotopologue of the flavor and fragrance compound 4-ethylguaiacol. This stable isotope-labeled standard is critical for ensuring analytical accuracy and reliability in quantitative mass spectrometry. It is an essential tool for researchers and quality control laboratories in the flavor, fragrance, and food science industries who require precise measurement of the parent compound in complex matrices.

Application

• Internal Standard for GC-MS/LC-MS Analysis: Primary use as a quantitative reference standard for the accurate measurement of 4-ethylguaiacol in food, beverage, and environmental samples.
• Flavor and Fragrance Research: Used in metabolic studies, process optimization, and authenticity verification of products like whiskey, wine, roasted coffee, and smoked foods.
• Quality Control & Assurance: Enables precise quantification in QC labs for flavor houses and food manufacturers to ensure product consistency and specification compliance.
• Deuterium-Labeled Tracer Studies: Facilitates research into the biogenesis, stability, and release kinetics of key aroma compounds.
• Regulatory and Safety Testing: Supports accurate analysis for compliance with food safety and labeling regulations.

Basic Information

Product Name	4-Ethylguaiacol-D5
CAS No.	1219803-12-9
Molecular Formula	C9D5H7O2
Molecular Weight	157.21 g/mol
Synonyms	4-Ethyl-2-methoxyphenol-D5; 2-Methoxy-4-ethylphenol-D5; 1-Hydroxy-2-methoxy-4-ethylbenzene-D5; Homocreosol-D5; Deuterated 4-Ethylguaiacol; [D5]-4-Ethylguaiacol; 4-EG-D5
EINECS	Contact for details

Quality Control

Our 4-Ethylguaiacol-D5 is manufactured under strict quality systems to ensure the high chemical and isotopic purity required for analytical applications. Each batch is characterized by advanced spectroscopic and chromatographic methods, including NMR, GC-MS, and HPLC, to confirm identity, isotopic enrichment (typically ≥98 atom % D), and chemical purity. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

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 away from strong acids and incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR / NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Isotopic Purity (Atom % D)	≥ 98%
Chemical Purity (GC)	≥ 99.0%
Water Content (KF)	≤ 0.5%

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