Description
With this Exemestane powder you get Exemestane as loose powder. Each batch is tested by LC-MS to 99% purity or higher. It’s $129.99. It’s sold for laboratory research only.
The same compound comes in other formats too: Exemestane capsules and Exemestane liquid. You’ll find similar products in our research chemical powders range.
What is Exemestane?
Exemestane is a steroidal aromatase inactivator. It binds the aromatase enzyme permanently, which stops it turning androgens into estrogens.
It’s an approved breast cancer drug (Aromasin) and is used here as a laboratory reference compound.
Exemestane powder specifications
- Compound: Exemestane
- CAS number: 107868-30-4
- Molecular formula: C20H24O2
- Molecular weight: 296.4
- Purity: 99% or higher, tested by LC-MS
- Amount: 10g
- Form: Loose powder
- Storage: Keep it in a cool, dry place away from direct sunlight
- Use: laboratory research only, not for human or veterinary use
Exemestane in published research
The Intergroup Exemestane Study, published in the New England Journal of Medicine in 2004, compared switching to exemestane with staying on tamoxifen in postmenopausal women with early breast cancer.
In lab work it’s a standard tool for blocking estrogen synthesis.
The original papers are on PubMed if you’d like to read them in full.
Tips for measuring Exemestane powder
Loose powder is the most flexible way to buy Exemestane. You can weigh any amount you need, dissolve it in your own solvent, or fill your own capsules. It’s also the cheapest format per milligram.
For small amounts you’ll want a scale that reads to at least 0.01g, and ideally 0.001g. Our digital scale and micro scoops make it easier to get consistent measurements. Weigh onto clean weighing paper, and close the bag or jar straight after so the powder doesn’t pick up moisture.
Making a solution from Exemestane powder
To make a stock solution, decide on the final volume and concentration first. For 30mL at 10mg/mL you’d weigh 300mg of Exemestane, dissolve it in about 25mL of solvent, then top up to exactly 30mL.
Check the compound’s solubility in your chosen solvent before you start, and try a small test amount first. Store the finished solution in a labelled glass bottle.
Exemestane quality and testing
We test each batch of Exemestane by LC-MS, which pairs liquid chromatography with mass spectrometry. The chromatography splits the sample into its components and the mass spectrometer identifies them, which tells you both identity and purity. This batch came in at 99% or higher.
Small differences between batches are normal, so write the batch number from the label into your records. If something looks wrong when your order arrives, like discoloured powder or a cloudy solution, set it aside and don’t use it.
How to store Exemestane
Keep it in a cool, dry place away from direct sunlight. Use a clean, dry scoop each time, and reseal the container straight away. Label anything you decant with the compound, amount and date, and keep it out of reach of children and pets.
Common questions about the Exemestane powder
What can I dissolve Exemestane powder in?
That depends on the compound’s solubility and your protocol. Check the solubility data for your solvent first, and test a small amount before making up a full batch.
What scale do I need?
One that reads to 0.01g at minimum, and 0.001g for very small amounts. Our pocket scale reads to 0.01g.
Is the Exemestane powder in stock?
Yes. Every option on this page is in stock and ready to ship.
More research chemicals like Exemestane
Similar products in this format include Fevipiprant powder, DiAcCa powder, Fluridil powder and Deucravacitinib powder. Our main Research Chemicals page lists everything in the category.
Buy Exemestane powder from Umbrella Labs
Ordering takes a minute. Add it to your cart and check out. The Exemestane powder is in stock and ready to ship. Need other compounds for the same study? Browse research chemical powders or our lab supplies.
Sold for laboratory research use only. It isn’t for human or veterinary use, and it isn’t a food, drug or cosmetic.
Reviews
There are no reviews yet.