Description

Testosterone Isocaproate is a synthetic ester derivative of the primary male androgen, testosterone, designed to prolong its biological activity. This compound is a critical active pharmaceutical ingredient (API) in the formulation of long-acting injectable hormone replacement therapies and anabolic preparations. It is essential for manufacturers in the pharmaceutical and biotechnology sectors requiring reliable, high-purity steroid intermediates. Testosterone Isocaproate CAS NO 15262-86-9 is supplied under stringent quality control to meet the exacting standards of modern therapeutic applications.

Application

• Pharmaceutical API: Primary use as a key intermediate in the synthesis of long-acting injectable testosterone replacement therapies (TRT).
• Hormone Formulations: A critical component in combination products (e.g., Sustanon, Omnadren) for treating male hypogonadism and related endocrine disorders.
• Research & Development: Used in biochemical and pharmacological research to study androgen receptor activity, steroid metabolism, and drug delivery systems.
• Veterinary Medicine: Employed in formulations for growth promotion and therapeutic applications in livestock and companion animals.
• Reference Standard: Serves as a high-purity analytical standard for quality control laboratories in pharmaceutical manufacturing.

Basic Information

Product Name	Testosterone Isocaproate
CAS No.	15262-86-9
Molecular Formula	C25H38O3
Molecular Weight	386.57 g/mol
Synonyms	Testosterone 17β-isocaproate; 4-Androsten-17β-ol-3-one 17β-isocaproate; 17β-Hydroxyandrost-4-en-3-one 17-isocaproate; Testosterone hexanoate (isomer); NSC-17591; Androst-4-en-17β-ol-3-one isocaproate; Testosterone 4-methylvalerate
EINECS	Contact for details

Quality Control

Our Testosterone Isocaproate is manufactured under a GMP-compliant quality management system, ensuring batch-to-batch consistency and traceability. Each lot undergoes comprehensive analytical testing, including identification by IR and NMR, purity determination by HPLC (typically ≥98.5%), and stringent control of related substances and residual solvents. A Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment to support your regulatory and quality assurance requirements.

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 away from heat, open flames, and incompatible materials. The product is light-sensitive and should be stored away from light.

Specification

Item	Specification
Appearance	White or almost white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time corresponds to reference standard
Assay (HPLC)	98.5% - 101.0%
Related Substances (HPLC)	Total impurities ≤1.5%
Single Unknown Impurity	≤0.5%
Residual Solvents (GC)	Complies with ICH Q3C guidelines
Loss on Drying	≤0.5%

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