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Anabolic Steroids

Testosterone Cypionate

Cyclopentyl ester testosterone. Extended half-life profile.

Also known as: TC · Test C · TEST CYPIONATE · C250 · Cypionate

CAS 58-20-8 · C27H40O3

Lead time

Ships in 3–5 days

Purity

99.1%

CAS Number

58-20-8

Molecular Weight

412.6

Formula

C27H40O3

Form

Oil solution 200mg/mL

Packaging

10mL vial

Storage

Room temperature, oil solution

Solubility

Oil-based carrier

Chemical structure

Testosterone Cypionate 2D chemical structure

2D structure · Source: PubChem (NIH)

Research applications

Testosterone cypionate is a cyclopentylpropionate ester of testosterone with an extended-release pharmacokinetic profile. It is used as a reference compound in androgen-receptor assays, depot-release kinetics research, and ester-structure-activity comparisons. Supplied as a research-grade oil solution for analytical and receptor studies.

Referenced literature

  1. [1]Bhasin S., et al. "Testosterone therapy in men with hypogonadism: an Endocrine Society clinical practice guideline." Journal of Clinical Endocrinology & Metabolism, 2018.

Selected peer-reviewed literature for research context — not medical advice.

Quality Documentation

How we verify
1

Raw material screening

Off-spec lots never enter synthesis

2

In-process monitoring

Intermediates characterized at checkpoints

3

HPLC-MS verification

Identity, purity & quantitation per batch

A batch-specific COA ships with every order — see the format before you buy.

Request sample COA

Frequently asked questions

What is Testosterone Cypionate?

Testosterone cypionate is a cyclopentylpropionate ester of testosterone with an extended-release pharmacokinetic profile. It is used as a reference compound in androgen-receptor assays, depot-release kinetics research, and ester-structure-activity comparisons. Supplied as a research-grade oil solution for analytical and receptor studies.

What purity is Testosterone Cypionate?

99.1% purity, HPLC-MS verified per batch.

What is the CAS number of Testosterone Cypionate?

CAS 58-20-8 · Molecular formula C27H40O3 · Molecular weight 412.6.

How long does Testosterone Cypionate take to ship?

Ships in 3–5 days after order confirmation.

How should Testosterone Cypionate be stored?

Room temperature, oil solution. Solubility: Oil-based carrier.

Is Testosterone Cypionate for human use?

No. Testosterone Cypionate is a research compound for laboratory research use only — not for human or veterinary use.

For pricing and availability of Testosterone Cypionate, contact our research team.

For laboratory research use only.