Question (67193) | Anti-Human IgG antibody [EPR4421] (ab109489)

Thank you for contacting us. Because we carry over 90,000 products, it isn't feasible for us to keep small sample sizes of our products.

We are happy to reassure our customers that all of our products are covered by our Abpromise, which guarantees that the product will work in the applications and species specified on the datasheet, or we will offer a replacement, credit, or refund within 6 months of purchase.

If the product is to be used in an untested species or application, you may be eligible for our AbTrial program if the antibody has not yet been purchased. Please contact our Scientific Support team by replying to this email prior to purchase for more information. Or you can find more information about this program at the following link:

www.abcam.com/abtrial

Otherwise, we like to encourage all of our customers to submit an Abreview via the online product datasheet. We always appreciate customer feedback, whether positive or negative, and we make all product information available to researchers. Plus, each Abreview earns Abpoints that can be used for discounts on future purchases or rewards such as Amazon.com gift certificates.

To find out more about our Abreview system, please see the following link:

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I have compared the immunogen sequence similarity between human and Cynomolgus and have found 72.3% homology. We suggest that less than 85% homology is a good indicator that the antibody will not cross react however, we cannot guarentee this.

At the moment we are having a promotion on rabbit monoclonals such as ab109489. If you buy any primary antibody you get a free Rabbit monoclonal antibody if you add the following code to your purchase order: RABMAB-XBSMG

This might be something that may interest you as it would allow you to try ab109489 for free.

I hope this information is helpful. Please do not hesitate to contact us again with any other questions.