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Back to the bench with FREE antibodies!

Get your 4th free when you buy 3.*

Get back to your experiments as quickly as possible with free antibodies!

CST has been operating and shipping throughout the pandemic, and 99.5% of our products are in stock. That means supply is continuous and there is no more waiting time.

For every 3 antibodies you buy, CST will give you a 4th FREE. The more you buy, the more you save!

Use promo code USBGW20 to receive every 4th antibody free.

Outside the US? Outside the US? Please contact your local account manager or distributor on how to take advantage of B3G4 antibody offer.

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Terms and Conditions

*TERMS & CONDITIONS: TERMS & CONDITIONS: Offer valid in USA only. Expires December 31, 2019. No cash or cash equivalent. No substitutions. Offer only valid on new catalog orders of antibodies, siRNA, activators and inhibitors, buffers and dyes, experimental controls and WB and IP reagents. Offer applies to purchases of 3 catalog items or more. Free item must be of equal or lesser value to the lowest priced purchased item. The value of the free item will be deducted from the total value of the order upon checkout or at the time the order is placed. All other products/services, including but not limited to Sampler Kits, PTMScan® Kits, PTMScan® Services, and Custom orders are excluded. Offer may not be applied to existing, pending or prior orders. Ineligible items, tax and shipping and handling charges will not be included in determining purchase threshold. Cannot be combined with any other promotions. Limit 1 promotion per order. Promotion code must be referenced when placing your order. Void if copied or transferred and where prohibited by law.