Alkyne-PEG4-Maleimideenablessimpleandefficientincorporationofterminalalkynegroupontoantibodies,cysteine-containingpeptidesandotherthiol-containingmolecules.Thehydrophilicpolyethyleneglycol(PEG)spacerarmimpartssolubilityinaqueousbuffers,andprovidesalongandflexibleconnectionthatminimizessterichindranceinvolvedwithligationtocomplementaryazide-containingmolecules.

| Molecularweight | 382.41 |
| Chemicalcomposition | C18H26N2O7 |
| CAS | 1609651-90-2 |
| Solubility | DMSO,DMF,DCM,THF,Chloroform |
| Purity | >90% |
| Appearance | Slightlyyellowoilorwhitecrystalline |
| Storageconditions | -20C |
| Shippingconditions | Ambienttemperature |