| Cat. No. | P0632 | P0669 | P0663 | P0665 | P0667 |
| Biotin type | Biotin-LC-NHS | Biotin-NHS | Biotin-SS-NHS-Sulfo | Biotin-LC-NHS-Sulfo | Biotin-NHS-Sulfo |
| Molecular formula | C20H30N4O6S | C14H19N3O5S | C19H27N4NaO9S4 | C20H29N4NaO9S2 | C14H18N3NaO8S2 |
| Molecular weight | ~455 | ~341 | ~607 | ~557 | ~443 |
| Spacer arm length | ~22.4Å | ~13.5Å | ~24.3Å | ~22.4Å | ~13.5Å |
| Mass added to target | ~339.5Da | ~226.3Da | ~389.6Da | ~339.5Da | ~226.3Da |
| Cell membrane permeability | Cell membrane permeable | Cell membrane impermeable | |||
| Solubility | DMSO, DMF | DMSO, DMF, Water | |||
| Storage conditions | -20ºC, protect from moisture | ||||
| Reactive groups | N-hydroxysuccinimide ester (NHS), reacts with primary amines at pH 7.0-9.0 | ||||