Description

Testosterone-D3 3-Cyclopentylpropionate is a deuterated analog of testosterone, specifically designed for use as an internal standard in analytical chemistry. This compound is critical for ensuring the accuracy and reliability of quantitative analyses, particularly in regulated environments. It is primarily utilized by pharmaceutical R&D laboratories, clinical research organizations, and forensic testing facilities for method development and validation in mass spectrometry.

Application

• Internal Standard for LC-MS/MS: Essential for the precise quantification of testosterone and related steroids in bioanalytical studies, ensuring method accuracy and meeting regulatory requirements for data integrity.
• Pharmaceutical Research & Development: Used in pharmacokinetic (PK) and pharmacodynamic (PD) studies to track drug metabolism and establish dosing regimens for testosterone-based therapies.
• Clinical Diagnostics: Supports the development and validation of diagnostic assays for measuring hormone levels, aiding in the diagnosis of endocrine disorders.
• Doping Control Analysis: A key reference material in sports anti-doping laboratories for the definitive identification and quantification of testosterone and its esters in athlete samples.
• Metabolite Tracing Studies: Facilitates advanced research into steroid metabolic pathways and the biotransformation of testosterone in various biological systems.
• Quality Control in API Manufacturing: Serves as a critical standard in the quality control of active pharmaceutical ingredient (API) production for androgen products.

Basic Information

Product Name	Testosterone-D3 3-Cyclopentylpropionate
CAS No.	876054-56-7
Molecular Formula	C27H39D3O3
Molecular Weight	417.64 g/mol (for C27H39D3O3)
Synonyms	Testosterone-d3 17-Cyclopentylpropionate; 17β-Hydroxy-4-androsten-3-one-d3 17-cyclopentylpropionate; Deuterated Testosterone Cypionate; Androst-4-en-3-one, 17-(3-cyclopentyl-1-oxopropoxy)-, (17β)-, 2,2,4-d3-; Testosterone-d3 CP; Testosterone-2,2,4-d3 3-Cyclopentylpropionate
EINECS	Contact for details

Quality Control

Every batch of Testosterone-D3 3-Cyclopentylpropionate is manufactured under strict quality management systems and undergoes comprehensive analytical characterization. Our products are supplied with a detailed Certificate of Analysis (COA) that includes data for isotopic purity, chemical purity, and identity confirmation via advanced spectroscopic techniques. We support compliance with GMP, ISO 17025, and ICH Q2(R1) guidelines for analytical procedure validation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to minimize exposure to atmospheric humidity. For long-term storage, consider storing under an inert atmosphere.

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 (D3)	≥ 98.0 atom % D
Chemical Purity (NMR)	Conforms
Residual Solvents (GC)	Meets ICH limits

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