| Description | Biotin-PEG-azide (MW 3400) is a biotinylated polyethylene glycol (PEG) derivative featuring an azide group. Biotin serves as an enzyme co-factor suitable for protein labeling, while PEG is a hydrophilic, water-soluble, low-toxicity polymer. The azide group, a moderately good leaving group, undergoes Cu-catalyzed reactions with alkynes, enhancing the efficiency of target binding by biotin. |
| molecular weight | 1325.61 |
| Molecular formula | C58H112N6O25S |
| CAS | 956494-20-5 |
| Storage | keep away from direct sunlight | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice. |