Biotin and derivatives
Medchemexpress LLC Sulfo-TAG NHS ester (disodium) | 482618-42-8 | 88.4% | 1185.12 g/mol | C43H39N7Na2O16RuS4 | 1 MG
Sulfo-TAG NHS ester (disodium) is a water-soluble N-hydroxysuccinimide (NHS) ester reagent for covalent labeling of proteins and antibodies via primary amine groups. The reagent contains a ruthenium-based electrochemiluminescent tag that enables sensitive electrochemiluminescence (ECL) detection when conjugated to antibodies. Supplied as a solid for research use; handle and store according to the supplier's SDS and COA.
- Couples to primary amine groups on proteins and antibodies for stable conjugation.
- Enables electrochemiluminescence (ECL) detection when attached to antibodies.
- Water-soluble formulation suitable for aqueous conjugation reactions.
- Provided with storage recommendations to maintain stability.
- Supplied with certificate of analysis (COA) and safety data sheet (SDS) specifying purity and molecular data.
Medchemexpress LLC Biotin-TEG-ATFBA | 1264662-85-2 | MFCD13184978 | 99.1% | 663.68 | C27H37F4N7O6S | 10 MG
Biotin-TEG-ATFBA is a biotin-labeled click chemistry reagent containing a perfluorophenylazide group. Upon photolysis it forms a stable azene intermediate that participates in insertion and cycloaddition reactions, enabling bioconjugation and linker construction for research applications. The compound is supplied as a solid with high purity and is intended for laboratory use.
Medchemexpress LLC Biotin-C5-azide | 1260586-88-6 | 98.9% | 255.34 g/mol | C10H17N5OS | 10 MG
Biotin-C5-Azide is a biotinylation reagent containing a terminal azide group for click chemistry. It is intended for research use to prepare biotinylated conjugates via copper-catalyzed or strain-promoted azide-alkyne cycloaddition.
Medchemexpress LLC Mal-GGG-Bal-NHS ester | 1193111-65-7 | 97.6% | 522.47 g/mol | 5 MG
Mal-GGG-Bal-NHS ester is an ADC linker reagent used to introduce a maleimide-containing GGG-Bal-NHS moiety for conjugation to antibodies or other amine- or thiol-containing biomolecules.
- Used as an ADC linker in antibody-drug conjugate synthesis.
- Contains an NHS ester for amine coupling and a maleimide for thiol conjugation.
- High reported purity of 97.6% for reliable coupling performance.
- Soluble in water at high concentration (50 mg/mL) with ultrasonic treatment if needed.
- Recommended storage under inert atmosphere and cold conditions to preserve stability.