Description

4,5-Dihydrotestolactone is a synthetic steroid derivative and a key intermediate in the synthesis of various pharmaceutical compounds. This high-purity chemical building block is essential for research and development in medicinal chemistry, enabling the creation of novel therapeutic agents. It is primarily utilized by pharmaceutical manufacturers, research institutions, and fine chemical suppliers focused on steroid-based drug discovery and production.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of active pharmaceutical ingredients (APIs) for hormonal therapies and other steroid-based medications.
• Research & Development: Used in academic and industrial laboratories for studying steroid metabolism, receptor binding, and developing new chemical entities.
• Reference Standard: Serves as a certified reference material (CRM) for analytical method development, validation, and quality control testing in pharmaceutical analysis.
• Fine Chemical Synthesis: Employed in multi-step organic synthesis to construct complex molecular architectures for specialized applications.
• Biochemical Research: Utilized in metabolic pathway studies and as a tool compound for investigating enzyme inhibition or activation related to steroid hormones.

Basic Information

Item	Detail
Product Name	4,5-Dihydrotestolactone
CAS No.	4269-77-6
Molecular Formula	C19H26O3
Molecular Weight	302.41 g/mol
Synonyms	Testolactone; 1-Dehydrotestololactone; 17a-Oxa-D-homo-androsta-1,4-diene-3,17-dione; Teslac; SQ 9538; NSC 23759; Dihydrotestolactone; 4,5-Dihydro-17a-oxa-D-homo-androsta-1,4-diene-3,17-dione
EINECS	224-247-9

Quality Control

Our 4,5-Dihydrotestolactone is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, IR and NMR for structural confirmation, and residual solvent analysis. We provide a detailed Certificate of Analysis (COA) with every shipment, ensuring traceability and compliance with your specifications. Our quality commitment supports applications requiring GMP-grade intermediates and research materials.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). This product is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). For long-term storage, consider packaging under an inert gas such as nitrogen or argon.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%, Total impurities ≤ 2.0%

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