20% off your first order. Best eligible offer applied automatically. Offers do not combine. Free standard shipping on orders of $100 or more after discounts. Research use only.

Returns & order issues

Product information, research guides, and certificates of analysis.

Returns & order issues illustration
Returns & order issuesHelp with the next step.

Returns & refunds

Once an order has been handed to the shipping carrier, it is final sale for change-of-mind returns. We do not accept returns or offer refunds simply because you no longer want the items. Damaged or incorrect items are reviewed case by case. Contact us with your order number before returning anything and wait for our instructions. This policy does not limit rights that cannot be excluded by law.

Damaged or incorrect items

If an item arrives damaged or incorrect, contact us promptly with your order number and photos of the item, label, and packaging. Keep the item and packaging while we review the issue. We review each case individually and will confirm the appropriate resolution, which may include a replacement or refund. This policy does not limit rights that cannot be excluded by law.

Changes & cancellations

You may cancel your order before it is handed to the shipping carrier. Contact us promptly with your order number and cancellation request. We will confirm the cancellation and arrange a refund of any payment received for the canceled order. Once your order has been handed to the carrier, it cannot be canceled. Contact us separately about other order changes.

Before sending anything back

Request authorization before sending a return. Support provides the return instructions after approval. We will confirm any return-shipping arrangements when reviewing your request.

Have another question?

Contact our team with your product name or order reference.

Contact us

THE MOLECULE WORKS COLLECTION

Small molecules.
More to explore.

Find your next research material. Explore the collection by compound, category, and size.

LET’S TALK

Good questions.
Real conversations.

Products, lab reports, or your order. Whatever’s on your mind, send our team a message.

Message Us