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Additional ordering information
| Telephone | 1-800-990-8053 |
| Fax | 1-800-609-2943 |
| sales@aatbio.com | |
| International | See distributors |
| Bulk request | Inquire |
| Custom size | Inquire |
| Shipping | Standard overnight for United States, inquire for international |
Storage, safety and handling
| Intended use | Research Use Only (RUO) |
Images
Figure 1. AF488 NHS Ester is the same molecule to the Alexa Fluor® 488 NHS Ester (#A20000 and A20100 from ThermoFisher, Alexa Fluor® is the trademark of ThermoFisher). Although the Alexa Fluor® 488 NHS Ester is one of the most common green fluorescent labeling dyes, its purity has been quite challenging. ThermoFisher provides it with purity of ~50-60% while a few other vendors offer it at even lower purities. Among all the impurities, we noted that the Bis-NHS ester of AF488 is quite detrimental since it could give a non-fluorescent product. This high purity AF488 NHS ester (#1080) of AAT Bioquest is free of the detrimental AF488 Bis-NHS ester impurity with much higher purity (top graph).