| Bioactivity | Cholesterol-PEG-azide (MW 5000) is a cholesterol PEG derivative that can form micelles through molecular self-assembly and has a longer half-life in vivo. Cholesterol-PEG-azide (MW 5000) can be used in drug delivery research[1]. | 
| Molar Mass | 5000 (Average) | 
| Transport | Room temperature in continental US; may vary elsewhere. | 
| Storage | Please store the product under the recommended conditions in the Certificate of Analysis.  | 
| Reference | [1]. Zhiyao He, et al. "Recent development of poly (ethylene glycol)-cholesterol conjugates as drug delivery systems." International Journal of Pharmaceutics 469.1 (2014): 168-178. |