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Medchemexpress LLC Biotin-PEG3-acid 1g | 252881-76-8 | 447.55 | C19H33N3O7S | 1 G
Supplier: Medchemexpress LLC HY1160271G
Biotin-PEG3-acid is a biotin-labeled, PEG-based PROTAC linker used to introduce a biotin tag with a short PEG3 spacer in PROTAC synthesis and bioconjugation workflows. The material is supplied as a 1 g purified solid (typical purity 98.0%) with molecular weight 447.55 g/mol and chemical formula C19H33N3O7S, and is accompanied by a batch-specific certificate of analysis.
- Provides a biotin handle separated by a PEG3 spacer to reduce steric hindrance
- Designed for incorporation into PROTACs and other bioconjugates
- Improves aqueous solubility compared with direct biotinylation
- Typically supplied with batch certificate showing ~98.0% purity
- Solid form with known molecular weight and formula for formulation planning
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