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SNAP-tag is a self-labeling protein derived from human O6-alkylguanine-DNA-alkyltransferase. SNAP-tag reacts with covalently with O6-benzylguanine derivatives. SNAP-FAM can be used for protein fluorescent lableing.

Product Name SNAP-FAM
CAS Number 1154528-97-8 
Related CAS
Molecular Formula C34H24N6O7
Molecular Weight 628.601
Purity (HPLC) >= 95%
Physical Appearance Orange Solid
Optical Properties Abs/Em Maxima: 494/526 nm
Solubility DMSO, DMF
Shipping Conditions Shipped on gel packs
Storage Conditions Store at -20°C and protected from light
Shelf Life 12 months after the date of delivery
Regulatory Statement For Research Use Only


Wilhelm, J., Kuhn, S., Tarnawski, M., Gotthard, G., Tunnermann, J., Tanzer, T., Karpenko, J., Mertes, N., Xue, L., Uhrig, U., Reinstein, J., Hiblot, J., & Johnsson, K. (2021). Kinetic and Structural Characterization of the Self-Labeling Protein Tags HaloTag7, SNAP-tag, and CLIP-tag. Biochemistry, 60(33), 2560–2575.



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