Description

δ-9(11)-Testosterone is a synthetic steroid derivative and an important pharmaceutical intermediate. This compound matters for its role in the research and development of novel therapeutic agents and as a key building block in steroid synthesis. It is primarily needed by pharmaceutical R&D laboratories, contract manufacturing organizations (CMOs), and fine chemical suppliers serving the global life sciences sector. The product is supplied under strict quality control to ensure batch-to-batch consistency for critical applications.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of more complex steroid-based active pharmaceutical ingredients (APIs).
• Research & Development: Used in medicinal chemistry for studying structure-activity relationships (SAR) and developing new therapeutic candidates.
• Reference Standard: Serves as an analytical standard in quality control laboratories for method development and impurity profiling.
• Biochemical Research: Employed in metabolic studies and investigations into steroid hormone pathways and receptor interactions.
• Fine Chemical Synthesis: Utilized as a specialized building block for custom synthesis and the production of high-value steroid derivatives.

Basic Information

Product Name	δ-9(11)-Testosterone
CAS No.	2398-99-4
Molecular Formula	C19H28O2
Molecular Weight	288.42 g/mol
Synonyms	9(11)-Dehydrotestosterone; δ9(11)-Testosterone; 17β-Hydroxyandrosta-4,9(11)-dien-3-one; Androsta-4,9(11)-dien-3-one, 17β-hydroxy-; 9,11-Dehydrotestosterone; NSC 97239; Testosterone, δ9(11)-
EINECS	Contact for details

Quality Control

Our δ-9(11)-Testosterone is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including identification, purity assay, and impurity profiling, to ensure it meets the stringent requirements for pharmaceutical intermediates. Certificates of Analysis (COA) documenting all test results are available upon request to support your regulatory and quality assurance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep the container tightly sealed to protect the product from moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time conforms to reference standard
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 1.0%
Loss on Drying	≤ 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.