TCO-NHS Ester is an amine-reactive building block used for modification of amine-containing molecule in organic media. TCO-NHS ester is supplied as a single axial (minor, rel-(1S-2S-5E-pS), ref 1 and 4) diastereomer. Specially formulated crystalline provides easy handling and extended shelf life.
Axial TCO derivatives demonstrate much higher reactivity in the inverse electron demand cycloaddition reaction compared to equatorial TCO derivatives. Up to 10-fold increase in reactivity was reported (ref 4) compared to equatorial TCO derivatives. At the same time, the axial TCO derivatives undergo cis-trans deactivation at faster rate compared to equatorial TCO derivatives (ref 4).
Unit Size | 25 mg, 100 mg, 1000 mg |
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Molecular weight | 267.28 |
Chemical composition | C13H17NO5 |
CAS | 1610931-22-0 |
Solubility | DMSO, DMF, DCM, THF, Chloroform |
Purity | >95% (HPLC) |
Appearance | White to slightly grey crystalline |
Storage Conditions | -20°C. Desiccate |
Shipping Conditions | Ambient temperature |
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