Description Contents hide 1 Product Specifications 2 Mechanism of Action 3 Research Applications & Pharmacology 4 Safety Profile & Handling Product SpecificationsAttributeDetailsProduct NameTestosterone Undecanoate InjectionGeneric NameTestosterone UndecanoateCAS Number5949-44-0Molecular FormulaC30H48O3Molecular Weight456.7 g/molDosage FormSterile oil-based injectable solutionStrength0.25g (250?mg) per 2mL vialPack Size2 vials/box; 10 boxes/cartonApproval NumberChina NMPA H10900063Product Code86904735000482ManufacturerZhejiang Xianju Pharmaceutical Co., Ltd.Barcode6923703203469Storage ConditionsStore at 2–25°C; protect from lightIntended UseLaboratory and preclinical research onlyMechanism of ActionTestosterone undecanoate is an esterified form of testosterone designed for slow release via intramuscular injection, metabolized by esterases to active testosterone, which then activates androgen receptors and influences gene expression in muscle, bone, and reproductive tissues .Research Applications & PharmacologyHormone Replacement Models: Achieves stable serum testosterone levels for 6–12 weeks with single doses, thanks to a prolonged half-life (~18–34 days) .Contraception & Bone Health: Used in male contraception and osteoporosis models; shows efficacy in increasing bone mineral density accessdata.fda.gov.Metabolic & Body Composition Studies: Improves lean mass, insulin sensitivity, and lipid profiles in animal and human trials .Pharmacokinetics: Serum testosterone peaks ~7 days post-injection; half-life ranges 18–34 days; maintenance dosing every 6–12 weeks required for steady levels .Safety Profile & HandlingCommon Adverse Events: Injection site pain, acne, erythrocytosis, weight gain .Serious Risks: Potential pulmonary oil microembolism (POME), prostate hypertrophy/cancer risk, elevated hematocrit .Contraindications: Avoid in prostate/breast cancer, liver tumor history, or females due to virilization risk medicines.org.uk.Handling Guidelines: Use aseptic technique, deep gluteal IM injection; monitor animals for cardiovascular and pulmonary signs.
