Description

Testosterone-[13C3] is a stable isotope-labeled analog of the primary male sex hormone, testosterone, where three carbon atoms are replaced with the 13C isotope. This compound is an essential internal standard for the accurate quantification of endogenous testosterone levels in biological matrices using mass spectrometry-based analytical techniques. It is a critical tool for clinical research laboratories, pharmaceutical development teams, and forensic toxicology units requiring high-precision hormone analysis.

Application

• Internal Standard for LC-MS/MS and GC-MS quantification of testosterone in clinical diagnostics and research.
• Metabolic and pharmacokinetic studies investigating testosterone pathways and drug interactions.
• Quality control and method validation in pharmaceutical analysis of hormone-based therapeutics.
• Forensic analysis and anti-doping testing for the detection of anabolic steroid abuse.
• Endocrine disorder research, including studies on hypogonadism and hormone-dependent cancers.
• Biomarker discovery and validation in systems biology and metabolomics research.

Basic Information

Product Name	Testosterone-[13C3]
CAS No.	327048-83-9
Molecular Formula	C1613C3H28O2
Molecular Weight	~292.4 g/mol
Synonyms	17β-Hydroxyandrost-4-en-3-one-13C3; (8R,9S,10R,13S,14S,17S)-13-methyl-17-(13C3)hydroxy-2,6,7,8,9,10,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-one; Testosterone-13C3; [13C3]-Testosterone; Isotopically Labeled Testosterone; Androst-4-en-17β-ol-3-one-13C3
EINECS	Contact for details

Quality Control

Our Testosterone-[13C3] is manufactured under strict quality systems to ensure the highest isotopic and chemical purity required for sensitive analytical applications. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing isotopic enrichment, chemical purity by HPLC, and identity confirmation by spectroscopic methods. We support compliance with GMP and ISO 17025 standards for reference materials.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below in a dry, moisture-free environment. This product is hygroscopic (moisture-sensitive) and light-sensitive. For long-term storage, consider storage under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 98.0%
Isotopic Enrichment	≥ 99 atom % 13C
Chemical Purity	≥ 95%
Solubility	Soluble in ethanol, methanol, DMSO

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