Description

Testosterone-D3 3-Phenylpropionate is a deuterium-labeled analog of testosterone 3-phenylpropionate, a long-acting ester derivative of the primary male androgen. This stable isotope-labeled compound is of critical importance for use as an internal standard in quantitative bioanalytical methods, ensuring the highest accuracy and reliability in mass spectrometry-based assays. It is primarily required by pharmaceutical R&D laboratories, clinical research organizations, and forensic toxicology labs engaged in hormone analysis, doping control, and pharmacokinetic studies.

Application

• Internal Standard for LC-MS/MS: Essential for the precise quantification of testosterone esters and related metabolites in biological matrices (plasma, serum, urine).
• Doping Control Analysis: Used in anti-doping laboratories for the definitive identification and measurement of exogenous testosterone abuse in sports.
• Pharmacokinetic/Pharmacodynamic (PK/PD) Studies: Supports accurate drug metabolism and disposition studies for testosterone-based therapeutics.
• Clinical Diagnostics: Enables reliable measurement of testosterone levels in endocrine disorder diagnostics and hormone replacement therapy monitoring.
• Forensic Toxicology: Employed in forensic investigations for the confirmatory analysis of anabolic-androgenic steroids.
• Method Development and Validation: Serves as a critical reference material for developing and validating robust analytical protocols in compliance with FDA, EMA, and WADA guidelines.

Basic Information

Product Name	Testosterone-D3 3-Phenylpropionate
CAS No.	876054-55-6
Molecular Formula	C28H37D3O3
Molecular Weight	427.62 g/mol (Calculated)
Synonyms	Testosterone-16,16,17-D3 3-Phenylpropionate; [16,16,17-2H3]-Testosterone 3-Phenylpropionate; Deuterated Testosterone Phenylpropionate; Androst-4-en-17β-ol-3-one-16,16,17-D3 3-(3-Phenylpropanoate); Testosterone-D3 PP; T-D3 PP; Testosterone Phenylpropionate-d3
EINECS	Contact for details

Quality Control

Our Testosterone-D3 3-Phenylpropionate is manufactured under strict quality control protocols to ensure the high chemical purity and isotopic enrichment required for analytical reference standards. Each batch is characterized by advanced spectroscopic and chromatographic techniques, including NMR, HPLC, and mass spectrometry, to confirm identity, chemical purity, and deuterium incorporation. Certificates of Analysis (COA) detailing all specifications are provided and traceable to primary reference materials.

Storage

Preserve in a tightly closed container, protected from light. Store at controlled room temperature (15-25°C) or as indicated on the label or COA. For long-term storage, keep desiccated at -20°C. The product is light-sensitive (store away from light).

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 (Deuterium Incorporation)	≥ 98.0 atom % D
Chemical Purity (by HPLC)	≥ 99.0%
Residual Solvents (GC)	Complies with ICH guidelines
Water Content (KF)	≤ 0.5%

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