Thiazoles
Medchemexpress LLC 2-isobutyl-3-methoxypyrazine-d3 | 588732-63-2 | >98.0% | 169.24 g/mol | C9H11D3N2O | 10 MG
2-Isobutyl-3-methoxypyrazine-d3 is the deuterium-labeled analogue of 2-isobutyl-3-methoxypyrazine, an aroma constituent in grapes, wines, green pepper, and asparagus. The labeled material (d3) is provided as a reference standard for analytical and research use, including isotope-dilution assays, method development, and trace-level quantitation.
Medchemexpress LLC Eicosapentaenoyl ethanolamide-d4 | 946524-41-0 | MFCD01740820 | ≥99.0% | 349.54 g·mol⁻¹ | C22H31D4NO2 | 500UG
Eicosapentaenoyl ethanolamide-d4 is a deuterium-labeled internal standard of eicosapentaenoyl ethanolamide intended for quantitative lipidomics and bioanalytical assays (LC-MS/MS). It contains four deuterium atoms and is provided as an analytical reference for method development and quantification in research settings.
- Isotope-labeled internal standard for quantitative analysis.
- Deuterium-labeled (d4) analogue optimized for mass spectrometry.
- High purity suitable for LC-MS workflows.
- Molecular formula C22H31D4NO2; molecular weight 349.54 g·mol⁻¹.
- Supplied in low microgram quantities for analytical use.
AdipoGen Thiazole Orange Solution
Chemical. CAS 107091-89-4. Formula C26H24N2O3S2. MW 476.61. Thiazol Orange is a nucleic acid stain that has found applications in many different areas. Among others it is used for reticulocyte analysis and Plasmodium species analysis as well as labeling cancer cells. Thiazole orange-labeled DNA has been used for live cell RNA imaging. Thiazole Orange has also been used for a variety of assays, PCR and flow cytometry. Spectral data lambdaex=509nm, lambdaem=530nm in 0.1M phosphate pH 7.0 bound to dsDNA.
Medchemexpress LLC Methyltetrazine-amine hydrochloride | 1596117-29-1 | MFCD32061909 | 99.7% | C10H12ClN5 | 10MG
Methyltetrazine-amine hydrochloride is a tetrazine-containing small-molecule reagent used for inverse electron demand Diels-Alder (iEDDA) bioorthogonal click chemistry. It facilitates rapid and selective conjugation to strained dienophiles for site-specific labeling and bioconjugation of biomolecules.
- High chemical purity (99.7%) suitable for analytical and preparative workflows.
- Hydrochloride salt form improves stability and handling as a solid.
- Reactive tetrazine moiety enables fast, catalyst-free iEDDA reactions with dienophiles.
- Suitable for site-specific biomolecule labeling and bioconjugation.
- Available in small research pack sizes for laboratory use.
Medchemexpress LLC (1S,2R)-2-amino-3-fluoro-1-(4-((methyl-d3)sulfonyl)phenyl)propan-1-ol | 00-00-0 | 97.3% | 250.30 | C10H11D3FNO3S | 5 MG
ent-Florfenicol amine-d3 is a deuterium-labeled internal standard of florfenicol amine used as a stable isotope tracer for LC-MS/MS method development and quantitative residue analysis. It is provided in small, high-purity quantities for analytical laboratories measuring veterinary drug metabolites and environmental residues.
- Deuterium-labeled analogue enabling accurate isotopic internal standardization.
- High purity (97.3%) suitable for quantitative analysis.
- Supplied in small, ready-to-use quantities for LC-MS/MS workflows.
- Stable under recommended storage conditions for reproducible results.
- Applicable to veterinary residue and environmental testing.
Medchemexpress LLC Endo S2 S. pyogenes 5ug | 5ug
Endo S2 secreted by Streptococcus pyogenes deglycosylates the conserved N-linked glycan at Asn297 on IgG Fc to eliminate its effector functions and evade the immune system EndoS2 specifically hydrolyzes diverse glycans on the Fc region of IgG antibodies using a mechanism that relies on its glycoside hydrolase domain and a coevolved carbohydrate-binding module[1][2] Endo S2 Protein S pyogenes (His) is the recombinant Endo S2 protein expressed by E coli with N-6 His labeled tag
Apexbio Technology LLC ET SSB Protein 100ug
ET SSB Protein is a recombinant protein that selectively binds to single-stranded DNA (ssDNA) It is designed to stabilize unfolded DNA regions and prevent strand reassociation or nuclease degradation ET SSB Protein exerts its biological activity primarily by binding ssDNA maintaining DNA in a single-stranded state and withstanding incubation at temperatures up to 95 C Based on these properties ET SSB Protein holds research potential in PCR and q-PCR assay optimization enhancement of DNA polymerase performance stabilization and labeling of ssDNA facilitation of reverse transcriptase efficiency in RT-PCR and sequencing protocols involving strong secondary structures
Apexbio Technology LLC ET SSB Protein 500ug
ET SSB Protein is a recombinant protein that selectively binds to single-stranded DNA (ssDNA) It is designed to stabilize unfolded DNA regions and prevent strand reassociation or nuclease degradation ET SSB Protein exerts its biological activity primarily by binding ssDNA maintaining DNA in a single-stranded state and withstanding incubation at temperatures up to 95 C Based on these properties ET SSB Protein holds research potential in PCR and q-PCR assay optimization enhancement of DNA polymerase performance stabilization and labeling of ssDNA facilitation of reverse transcriptase efficiency in RT-PCR and sequencing protocols involving strong secondary structures
Medchemexpress LLC Methyltetrazine-amine hydrochloride | 1596117-29-1 | MFCD32061909 | 99.7% | 237.69 | C10H12ClN5 | 5 MG
Methyltetrazine-amine hydrochloride is a tetrazine-based reagent provided as the hydrochloride salt for bioorthogonal labeling and site-specific bioconjugation. It serves as a reactive tetrazine handle for inverse-electron-demand Diels-Alder (IEDDA) reactions with strained alkenes, enabling rapid, selective conjugation under mild conditions.
- Provides a reactive tetrazine handle for IEDDA bioorthogonal chemistry.
- Hydrochloride salt form improves solubility and handling.
- High purity supports reliable conjugation and reproducible results.
- Available in small milligram quantities for method development and optimization.
- Suitable for site-specific dual functionalization of biomolecules.
Medchemexpress LLC SARS-CoV-2 S2 HEK29 1mg | 1mg
The SARS-Cov-2 S glycoprotein is a SARS-Cov-2 S glycoprotein The amino acid sequence 1261-1267a a of the SARS-Cov-2 S glycoprotein is transmembrane The SARS-Cov-2 S glycoprotein is a highly glycosylated trimer each of which consists of 1260 amino acids (residues 14-1273) divided into four structural domains the n-terminal domain (NTD) the c-terminal domain (CTD also known as the receptor-binding domain RBD) and two subdomains (SD1 and SD2) SARS-CoV-2 S2 Protein (HEK293 His) is the recombinant Virus-derived SARS-CoV-2 S2 protein expressed by HEK293 with C-His labeled tag