Pyrazines

Medchemexpress LLC Methyl red | 493-52-7 | MFCD00002425 | 98.7% | 269.30 g/mol | C15H15N3O2 | 100g

Methyl red is a pH-sensitive acid-base indicator and colorimetric reagent with a pKa of 5 1 Methyl red achieves visual judgment of the titration endpoint through reversible structural changes of protonation (red pH 4 4) and deprotonation (yellow pH 6 2) Methyl red is widely used in acid-base titration in chemical analysis and buffer pH monitoring in biochemistry[1][2]

Medchemexpress LLC Methyl orange | 547-58-0 | MFCD00007502 | 99.9% | 327.34 g/mol | C14H14N3NaO3S | 1 ML

Methyl orange is an azo dye supplied as a 10 mM solution in dimethyl sulfoxide (DMSO). It is commonly used as an acid-base pH indicator and for staining or dyeing applications. The solution is provided in a 1 mL sealed vial for laboratory use (CAS 547-58-0).

• Ready-to-use 10 mM solution in DMSO.
• Supplied as a 1 mL sealed vial for small-scale assays and standards.
• Works as an acid-base indicator with a color change from red to yellow around pH 3.1-4.4.
• Reported purity of 99.9% supports reproducible analytical results.
• Consult the safety datasheet for handling, storage, and hazard information.

Medchemexpress LLC Methyl orange | 547-58-0 | MFCD00007502 | 99.9% | 327.34 g/mol | C14H14N3NaO3S | 100 G

Methyl orange is an azo dye used primarily as an acid-base pH indicator and as a staining reagent for microscopy and textile applications. It is supplied reagent-grade with high reported purity and documented solubility for laboratory formulations.

• Used as a pH indicator in titrations; transition range reported around pH 3.0-4.4.
• Suitable for staining in microscopy and for dyeing textiles.
• High purity (99.85%), suitable for analytical use.
• Molecular formula C14H14N3NaO3S; molecular weight ≈327.34 g/mol.
• Soluble in DMSO (~20 mg/mL with warming); compatible with common lab co-solvent formulations.
• Offered in laboratory pack sizes, including 100 G for bulk use.

Apexbio Technology LLC 5-hydroxypyrazine-2-carboxylic acid 34604-60-9 1g

5-Hydroxypyrazine-2-carboxylic acid (CAS 34604-60-9) is a metabolite generated during the hepatic metabolism of the anti-tuberculosis drug pyrazinamide It is studied for its involvement in elucidating bacterial resistance mechanisms and drug metabolism pathways associated with Mycobacterium tuberculosis In vitro assays commonly utilize 5-Hydroxypyrazine-2-carboxylic acid to examine biological activity against mycobacterial enzymes related to tuberculosis pathogenesis and resistance development In enzyme inhibition studies this metabolite is employed to determine inhibition potencies characterized by IC50 measurements Based on these properties 5-Hydroxypyrazine-2-carboxylic acid holds research potential in drug discovery and resistance research for tuberculosis

TARGETMOL CHEMICALS INC SPLITOMICIN 25MG

Also available in 5 mg 10 mg 50 mg 100 mg 200 mg 1 mL 10 mM (in DMSO) and bulk. Please contact Fisher for quotes. Splitomicin (1-Naphthalenepropanoic Acid) (IC50 of 60 uM) a specific inhibitor of NAD(+)-dependent histone deacetylase Sir2p displays a high activity in a cell-based assay. purity: 99%

Apexbio Technology LLC 3'-O-Methyl-CTP 10ul (100 mM)

3p-O-Methyl-CTP is a modified nucleoside triphosphate It features a methyl group at the 3 -hydroxyl position of the ribose enabling enzymatic incorporation into nucleic acids and modulating physicochemical properties such as RNA stability and protein interactions 3p-O-Methyl-CTP exerts its biological activity by serving as a substrate for RNA synthesis introducing sugar modifications that impact RNA-protein recognition mechanisms and gene expression regulation Based on these characteristics 3p-O-Methyl-CTP holds research potential in molecular biology and epigenetics facilitating studies on RNA modifications nucleic acid modulation and the functional analysis of epigenetic processes

Apexbio Technology LLC 3'-O-Methyl-CTP 50ul (100 mM)

3p-O-Methyl-CTP is a modified nucleoside triphosphate It features a methyl group at the 3 -hydroxyl position of the ribose enabling enzymatic incorporation into nucleic acids and modulating physicochemical properties such as RNA stability and protein interactions 3p-O-Methyl-CTP exerts its biological activity by serving as a substrate for RNA synthesis introducing sugar modifications that impact RNA-protein recognition mechanisms and gene expression regulation Based on these characteristics 3p-O-Methyl-CTP holds research potential in molecular biology and epigenetics facilitating studies on RNA modifications nucleic acid modulation and the functional analysis of epigenetic processes

Apexbio Technology LLC 3'-O-Methyl-CTP 100ul (100 mM)

3p-O-Methyl-CTP is a modified nucleoside triphosphate It features a methyl group at the 3 -hydroxyl position of the ribose enabling enzymatic incorporation into nucleic acids and modulating physicochemical properties such as RNA stability and protein interactions 3p-O-Methyl-CTP exerts its biological activity by serving as a substrate for RNA synthesis introducing sugar modifications that impact RNA-protein recognition mechanisms and gene expression regulation Based on these characteristics 3p-O-Methyl-CTP holds research potential in molecular biology and epigenetics facilitating studies on RNA modifications nucleic acid modulation and the functional analysis of epigenetic processes