Description

(17β)-2-(Acetyl-13C2)-17-(Benzoyloxy)-4-Oxaandrost-5-En-3-One CAS NO 82938-00-9 is a high-purity, stable-isotope labeled derivative of a key steroidal intermediate. This compound is specifically engineered for use in advanced analytical and research applications where precise molecular tracking is required. It is an essential material for pharmaceutical R&D laboratories, contract research organizations (CROs), and manufacturers of diagnostic standards focusing on metabolic studies and drug development.

Application

• Internal Standard for Mass Spectrometry (MS): Serves as a critical, isotopically labeled internal standard in LC-MS/MS and GC-MS analyses for accurate quantification of related steroid compounds in complex biological matrices.
• Pharmaceutical Reference Standard: Used as a certified reference material (CRM) for the quality control and method validation of steroid-based active pharmaceutical ingredients (APIs) and finished drug products.
• Metabolic Pathway Tracing: Enables detailed pharmacokinetic (PK) and drug metabolism studies by allowing researchers to trace the fate of the steroid backbone in in vitro and in vivo systems.
• Biochemical Research Reagent: Employed in enzymatic studies and receptor binding assays to investigate steroid hormone action and the synthesis of more complex steroid molecules.
• Diagnostic Kit Manufacturing: A key component in the production of calibration standards and controls for clinical diagnostic assays measuring hormone levels.

Basic Information

Product Name	(17β)-2-(Acetyl-13C2)-17-(Benzoyloxy)-4-Oxaandrost-5-En-3-One
CAS No.	82938-00-9
Molecular Formula	C28H3413C2O5
Molecular Weight	~454.6 g/mol (for 13C2 labeled form)
Synonyms	2-(Acetyl-13C2)-17-(Benzoyloxy)-4-Oxaandrost-5-En-3-One
17β-Benzoyloxy-2-(acetyl-13C2)-4-oxaandrost-5-en-3-one
4-Oxaandrost-5-ene-3-one, 2-(acetyl-13C2)-17-(benzoyloxy)-, (17β)-
13C2-Labeled Steroid Intermediate
Isotope Labeled 4-Oxa Steroid
Benzoyloxy-4-oxaandrostene Derivative (13C2)
82938-00-9
EINECS	Contact for details

Quality Control

Every batch of our isotope-labeled steroid intermediate is manufactured and tested under strict quality management systems. We guarantee high chemical and isotopic purity, with comprehensive characterization to meet the exacting standards of analytical and pharmaceutical research. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting identity, purity (by HPLC), isotopic enrichment, and other critical parameters.

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 tightly after each use to prevent degradation from atmospheric moisture. 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 Enrichment	≥ 99 atom % 13C
Chemical Purity (by 1H-NMR)	Conforms
Residual Solvents (GC)	Meets 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.