8-Arm PEG-Biotin, MW 20k
| Supplier | Alfa Chemistry |
|---|---|
| Product # | BR00028239 |
| CAS # | |
| Pricing | Inquire |
| MolecularWeight | 8-Arm PEG MW refers to the MW of the entire PEG molecule. The MW of each arm is 1/8 of the MW indicated in the product name. MW of PEG was measured by MALDI-MS or GPC. PDI (polydispersity index) of our 8-Arm PEG is 1.02-1.06 with very narrow MW distribution. The number of repeating ethylene oxide units (CH2CH2O) or the degree of polymerization is calculated dividing the PEG MW by 44 (44 is the molecular mass of one repeating unit). |