Description

4-Methyl-D3-Diphenyl CAS NO 94367-56-3 is a deuterium-labeled isotopologue of 4-methyldiphenyl, where three hydrogen atoms are replaced by the stable isotope deuterium. This compound is of significant value as a high-purity internal standard and tracer in analytical chemistry, enabling precise quantification and metabolic pathway studies. It is primarily required by research and development laboratories in the pharmaceutical, agrochemical, and material science industries for advanced mass spectrometry (MS) and nuclear magnetic resonance (NMR) applications.

Application

• Internal Standard for Quantitative Analysis: Used in LC-MS and GC-MS methods for the accurate measurement of 4-methyldiphenyl and related compounds in complex matrices.
• Metabolic Tracer Studies: Employed in pharmaceutical R&D to investigate the absorption, distribution, metabolism, and excretion (ADME) profiles of drug candidates.
• Isotope Dilution Mass Spectrometry (IDMS): Serves as a critical component in high-precision analytical techniques for environmental and food safety testing.
• NMR Spectroscopy: Provides a non-radioactive probe for mechanistic studies in organic chemistry and material science due to its distinct spectroscopic signature.
• Chemical Reference Standard: Acts as a certified reference material (CRM) for instrument calibration and method validation in quality control laboratories.
• Synthesis of Labeled Complex Molecules: Used as a building block for the preparation of more complex deuterated compounds for specialized research.

Basic Information

Product Name	4-Methyl-D3-Diphenyl
CAS No.	94367-56-3
Molecular Formula	C13H9D3
Molecular Weight	171.24 g/mol
Synonyms	4-Methyl-d3-biphenyl; 1-Methyl-4-(phenyl-d3)benzene; Biphenyl-4-methyl-d3; [D3]-4-Methyldiphenyl; p-Methyldiphenyl-d3; 4-(Trideuteriomethyl)biphenyl; p-Terphenyl-d3 (common misnomer, verify context); 4-Phenyltoluene-d3
EINECS	Contact for details

Quality Control

Every batch of 4-Methyl-D3-Diphenyl is produced and analyzed under strict quality management protocols to ensure exceptional isotopic and chemical purity, which is critical for its function as an analytical standard. Our products undergo rigorous quality testing, including NMR and MS analysis, to confirm deuterium incorporation and chemical identity. Certificates of Analysis (COA) detailing batch-specific purity, isotopic enrichment, and analytical results are available upon request.

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 place. Keep the container tightly sealed to prevent moisture absorption and potential contamination.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
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%
Residue on Ignition	≤ 0.1%

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