TCO-PEG12-NHSEsterisapegylated,water-solublereagentforsimpleandefficientlabelingofantibodies,proteinsandotherprimaryamine-containingmacromolecules.Averylong(56A),hydrophilicPEGspacerarmprovidesalongandflexibleconnectionthatminimizessterichindranceinvolvedwithligationtocomplementarytetrazine-containingmolecules.

| Molecularweight | 866.99 |
| Chemicalcomposition | C40H70N2O18 |
| CAS | N/A |
| Solubility | Water,DMSO,DMF,THF,Acetonitrile,Dichloromethane |
| Purity | >95%(HPLC) |
| Appearance | Colorlesstoslightlyyellowoil |
| Storageconditions | -20°C.Desiccate |
| Shippingconditions | Ambienttemperature |