Description

4-Hydroxydiphenyl-D9 is a deuterium-labeled isotopologue of 4-phenylphenol, a key compound used as an internal standard in advanced analytical chemistry. This high-purity labeled standard is critical for ensuring accuracy and reliability in quantitative mass spectrometry, eliminating matrix effects and isotopic interference. It is essential for researchers and quality control laboratories in the pharmaceutical, agrochemical, and environmental sectors who require precise measurement of phenolic compounds and their metabolites.

Application

• Internal Standard for LC-MS/MS and GC-MS analysis of phenolic compounds and their degradation products.
• Metabolite tracking and pharmacokinetic studies in pharmaceutical research and development.
• Quantitative analysis of bisphenol analogs, alkylphenols, and other industrial phenolic contaminants in environmental monitoring.
• Stable isotope dilution assays for accurate determination of 4-phenylphenol in complex matrices.
• Method development and validation in regulatory and forensic testing laboratories.
• Research into degradation pathways and environmental fate of phenolic substances.

Basic Information

Product Name	4-Hydroxydiphenyl-D9
CAS No.	126840-28-6
Molecular Formula	C12D9HO
Molecular Weight	175.25 g/mol
Synonyms	[1,2,3,4,5,6,2',3',4'-D9]-4-Hydroxydiphenyl; 4-Hydroxy[1,2,3,4,5,6,2',3',4'-D9]biphenyl; 4-Phenylphenol-D9; [D9]-4-Biphenylol; p-Hydroxydiphenyl-D9; 4-Hydroxy-1,1'-biphenyl-D9; p-Phenylphenol-D9; Deuteronated 4-Hydroxydiphenyl
EINECS	Contact for details

Quality Control

Our 4-Hydroxydiphenyl-D9 is manufactured under strict quality systems to ensure the highest isotopic and chemical purity for analytical applications. Each batch is characterized by NMR and Mass Spectrometry to confirm deuteration level and identity, with purity typically exceeding 98% (by HPLC). Certificates of Analysis (COA) detailing isotopic purity, chemical purity, and solvent content are 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 heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (MS)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Isotopic Purity (D-content)	≥ 98 atom % D
Water Content (KF)	≤ 0.5%
Residual Solvents (GC)	Meets ICH guidelines

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