Methyltetrazine-PEG4-NHS Ester reacts specifically and efficiently with a primary amine (e.g., side chain of lysine residues or aminosilane-coated surfaces) at pH 7-9 to form a covalent bond. The PEG spacer arm provides a long and flexible connection that minimizes steric hindrance involved with ligation to complementary TCO-containing molecules. The aqueous solubility of this reagent is substantially enhanced by a hydrophilic polyethylene glycol (PEG) spacer arm.
| Unit Size | 4×2 mg, 10mg, 25 mg, 100 mg, 500 mg, 1000 mg |
|---|---|
| Molecular weight | 533.53 |
| Chemical composition | C24H31N5O9 |
| CAS | 1802907-92-1 |
| Solubility | DMSO, DMF, DCM, THF, Chloroform |
| Purity | >95% (HPLC) |
| Appearance | Red crystalline |
| Storage Conditions | -20°C. Desiccate |
| Shipping Conditions | Ambient temperature |
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