Testolactone Tablets 50 mg

Description

Testolactone tablets at 50 mg per tablet, bottles of 100, 5,000 mg in total. Testolactone is a first-generation steroidal aromatase inhibitor and a D-homo steroid lactone. The United States product was discontinued and is no longer manufactured, so this is held for reference. Research use only, not for human consumption, adults 21 and over, with purchase restrictions by state.

What the label states

Five thousand milligrams in one bottle, which is among the largest totals in this catalogue. Content per unit and count are the only two numbers needed to get there for testolactone tablets.

We shelve testolactone tablets with the other ancillaries, under anabolic reference materials.

Five thousand milligrams and the derived price

50 mg times 100 tablets is 5,000 mg. At $310 that is $0.062 per milligram. A discontinued compound in a large bottle will often price better per milligram than a current product in a small one, which is why the derived figure rather than the listing price is the comparable number.

Why price per milligram beats the price on the bottle sets out the method we apply across the catalogue.

The ring structure of testolactone tablets

Testolactone is a D-homo steroid: ring D is expanded from five carbons to six and closed as a lactone, with a molecular mass near 300.4. That makes it structurally unlike every other compound on this shelf, including the steroidal aromatase inactivator listed nearby, which keeps a conventional ring D.

It belongs to the first generation of this class, superseded commercially rather than chemically. The compound is still well characterised and still assays cleanly, which is what makes testolactone tablets usable as a reference standard long after the product left the market.

United States marketing status

The compound did hold a United States approval, and that product was discontinued and is no longer manufactured, so there is no current prescription equivalent. Discontinuation is a commercial and regulatory record rather than a chemical change in testolactone tablets. Approval and marketing history is published through the FDA’s drug approvals and databases, and the current federal schedules are at the DEA, which is where scheduling questions about any specific compound should be checked.

Traceability

Lot number first, everything else second. The number printed on the container is the key to the assay report, the receipt date, the method and the archive copy, and it is the only part of the label that cannot be reconstructed from the catalogue. Content per unit, container count and storage conditions for testolactone tablets are also on the label and on the listing. If the two disagree, the label is the document that travelled with testolactone tablets, so the label wins and we want to hear about it.

Purity, identity and what neither of them proves

HPLC purity says what fraction of the total peak area belongs to the expected compound. Mass spectrometry says the molecule is the molecule. Neither test says anything about sterility, endotoxin, particulate matter or the suitability of this material for any purpose at all, and a certificate that implied otherwise would be a worse document, not a better one. Content and purity are also distinct: a lot of this material can be chemically clean and still assay under its stated milligrams. Both figures appear, along with residual solvent in parts per million and the lot number printed on the label.

How to read a certificate of analysis sets out which field answers which question.

The part of the description that is missing

Pages in this category usually carry a paragraph about what the compound is for. The page for this material does not, and the gap is deliberate. No quantities for a person, no schedules, no sequences of compounds, no claims about anything that happens in a living organism.

Writing that paragraph is the specific thing regulators have acted on, and the research-use-only line underneath it has not helped the sites that tried. Research use only is not a legal strategy walks through the correspondence. The FDA’s drug section is where the agency publishes its own.

Research use only. Not for human consumption. Adults 21 and over, purchase restrictions by state, both stated on the listing for this item and enforced at checkout. Not a drug, not a dietary supplement, not a food. The lot certificate for this item and the full archive, failures included, are published on the lab results page.