Frequently asked questions
Research use
What does research use only mean?
Products are sold for laboratory research. They are not for use in humans or animals, and not for diagnostic or therapeutic use. The research-use policy has the details.
Can you answer questions about use or effects?
No. We do not give instructions for use in people or animals, or describe effects.
What information is on a product page?
The sequence, formula, molecular weight, CAS number, storage, strength, and price. Nothing about what it does.
Certificates and lot records
Where do I find the certificate for my vial?
Scan the QR code on the vial label. It opens the public record for that lot and needs no account. You can also type the lot number printed on the label into the lot lookup page.
Does the certificate on the product page match my vial?
Not always. The QR code on your vial always opens the record for your vial's lot.
What happens to a record after a lot sells out?
It stays online. A vial from an earlier lot keeps opening its own certificate, not the newest one.
Where are the laboratory and test date shown?
On the certificate. Product pages do not repeat them.
Shipping, tax, and returns
Where do you ship?
Within the United States only.
How much does shipping cost?
Prices are on the shipping policy and at checkout. Standard Shipping is free on orders of $200 or more after discounts.
How long does delivery take?
Standard Shipping is estimated at 3–5 business days, Expedited at 2–4, and Express at 1–2. These are estimates, not guarantees. The shipping policy has the details.
Do you charge sales tax?
Prices include any sales tax that applies. No tax is added at checkout.
Can I return an order?
No returns. See the refund and returns policy for more info.
Anything else, including a question about a specific lot, goes through the contact page. Include the lot number printed on the vial.