Acyl Halides
Sigma Aldrich Fine Chemicals Biosciences 1-Linoleoyl-rac-glycerol >=97%, liquid | 2277-28-3 | MFCD00270409 | 100MG
1-Linoleoyl-rac-glycerol >=97%, liquid | Purity: >=97% | Mol Wt: 354.52 | 2277-28-3 | MFCD00270409 | 100MG
Medchemexpress LLC Biotin-PEG3-bromide | 1041766-91-9 | 95.0% | 482.43 g·mol⁻1 | C18H32BrN3O5S | 25 MG
Biotin-PEG3-bromide is a biotinylated short polyethylene glycol (PEG3) linker with a terminal alkyl bromide. It is used to introduce a biotin affinity tag onto molecules via nucleophilic substitution or cross-coupling reactions, enabling streptavidin-based capture, detection, and pull-down workflows in chemical biology and bioconjugation studies.
- Reactive alkyl bromide suitable for nucleophilic substitution and cross-coupling reactions.
- Biotin moiety enables high-affinity capture with streptavidin/avidin reagents.
- Short PEG3 spacer improves solubility and reduces steric hindrance.
- High solubility in DMSO allows preparation of concentrated stock solutions.
- Powder stable at -20°C; follow recommended storage for solutions to maintain integrity.
Cayman Chemical N-a-Benzoyl-L-ArgInInamIdeh 5g
A nonpeptide substrate of proteases and deiminases; has been used as a substrate for the quantification of papain, carboxypeptidase B, PAD2, and PAD4 activities
Medchemexpress LLC (R)-Butyryl carnitine-d5 chloride | 162067-50-7 | MFCD00274128 | 272.78 | C11H17D5ClNO4 | 1 MG
(R)-Butyryl carnitine-d5 chloride is a deuterium-labeled form of Butyryl-L-carnitine chloride used as an internal standard and tracer for quantitative analysis by LC-MS, GC-MS, and NMR. It is supplied as the chloride salt and contains five deuterium atoms (d5), enabling clear mass separation from endogenous analytes.
- Deuterium-labeled (d5) chloride isotopologue for analytical differentiation.
- Suitable as a tracer and internal standard for quantitative assays.
- Molecular formula C11H17D5ClNO4 and molecular weight 272.78 g/mol.
- Available in small research pack sizes appropriate for analytical use.
- Documentation and certificate of analysis referenced on the product page.
Cayman Chemical Palmitoyl Ethanolamided4
An internal standard for the quantification of palmitoyl ethanolamide by GC- or LC-MS