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COA of AF680 NHS ester

Description:

Alexa Fluor 680 NHS ester (Alexa Fluor 680 succinimidyl ester) is a near-infrared (NIR) fluorescent dye. NHS esters can be used to label to the primary amines (R-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules (Ex/Em = 679/702 nm).

Chemical Information

Catalog DC68097
Purity of current batch >98%
CAS 407628-15-3
Molecular Weight (MW) 955.91
Molecular Formula C39H47BRN4O13S3
Storage 2 years -20°C Powder, 2 weeks 4°C in DMSO, 6 months -80°C in DMSO

Handling:

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.