Pyrimidines And Derivatives
![Medchemexpress LLC 4-[[4-(dimethylamino)phenyl]azo]benzenesulfonic acid, sodium salt. | 547-58-0 | MFCD00007502 | 99.9% | 327.34 g/mol | C14H14N3NaO3S | 25 G](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000307908.png-250.jpg)
Medchemexpress LLC 4-[[4-(dimethylamino)phenyl]azo]benzenesulfonic acid, sodium salt. | 547-58-0 | MFCD00007502 | 99.9% | 327.34 g/mol | C14H14N3NaO3S | 25 G
Methyl Orange is an azo dye supplied as an orange-yellow powder, used as a laboratory reagent and acid-base indicator. It has formula C14H14N3NaO3S, molecular weight 327.34 g/mol, and is provided at high purity for analytical applications.
- Commonly used as an acid-base indicator in titration and pH testing.
- Provides a distinct color change in acidic to near-neutral conditions.
- Available in multiple solid pack sizes, including a 25 g laboratory pack.
- Stable as a powder with recommended storage at -20°C for long-term or 4°C for short-term storage.
- Supplied with SDS and COA documentation for quality and safety verification.
Apexbio Technology LLC Guanine 73-40-5 5g
Guanine (CAS 73-40-5) is a purine nucleobase characterized by a fused pyrimidine and imidazole ring system with conjugated double bonds As an integral component of DNA and RNA guanine forms hydrogen bonds with cytosine to facilitate nucleic acid base pairing thus playing a central role in the storage and transmission of genetic information It is frequently utilized in research investigating nucleic acid structure replication mutagenesis and enzymatic processes involving nucleotide metabolism or signaling pathways
Apexbio Technology LLC DOTMA 104872-42-6 250mg
DOTMA (CAS 104872-42-6) is a tetramethylated DOTA analogue structurally classified as a cationic lipid It imparts a positive surface charge to liposomes thus enhancing electrostatic interactions with negatively charged cellular membranes This property facilitates cellular uptake enabling its use as a non-viral vector for nucleic acid delivery including siRNA microRNA and oligonucleotides DOTMA is widely utilized in both in vitro and in vivo gene transfection studies contributing to research in gene therapy and nucleic acid-based therapeutics
Medchemexpress LLC M-methyl red | 20691-84-3 | MFCD00059641 | 98.0% | 269.30 g/mol | C15H15N3O2 | 5 G
m-Methyl red is an azo dye and pH-sensitive acid-base indicator supplied as a solid for laboratory and analytical applications, including titration endpoint detection and staining in research settings.
- Indicator: pH transition around 4.4-6.2 (pKa ≈5.1)
- Useful for visual titration endpoint detection
- Chemical formula C15H15N3O2 and molecular weight 269.30 g/mol
- Provided as a solid suitable for staining and analytical uses
- CAS number 20691-84-3 for precise chemical identification
Medchemexpress LLC Methyl orange | 547-58-0 | MFCD00007502 | 99.9% | 327.33 g/mol | C14H14N3NaO3S | 50 G
Methyl orange is a water-soluble azo dye supplied as a solid powder and used primarily as an acid-base indicator and a staining or dyeing reagent. It exhibits a color change from red to yellow across the pH 3.1-4.4 range, making it useful for titration end-point detection and analytical staining.
- High purity reported at 99.85%.
- Distinct color transition at pH 3.1-4.4 for accurate end-point detection.
- Solid powder form suitable for preparing indicator solutions or dyes.
- Common applications include titration, tissue staining, and textile dyeing.
- Handle with care; may be cytotoxic at high concentrations.
Medchemexpress LLC Methyl orange (standard) | 547-58-0 | MFCD00007502 | 327.33 | C14H14N3NaO3S | 5 G
Methyl Orange is a soluble azo dye used primarily as an acid-base indicator in titrations and as a staining and dyeing reagent in laboratory and textile applications. It exhibits a clear color change from red to yellow between approximately pH 3.1 and 4.4. Consult the supplier datasheet and SDS for handling, storage, and safety information.
- Soluble azo dye for pH indication and titration.
- Clear color change around pH 3.1-4.4 for reliable end-point detection.
- Suitable for staining cells, tissue sections, and textile dyeing.
- Provided as an analytical standard in small laboratory quantities for accurate testing.
- Handle with care; may be cytotoxic at high concentrations-refer to SDS.
Apexbio Technology LLC 9-cis-Retinoic Acid 5300-03-8 25mg
9-cis-Retinoic Acid (CAS 5300-03-8) is a small-molecule agonist targeting retinoic acid receptors (RARs) and retinoid X receptors (RXRs) It is designed to activate these nuclear receptors thereby regulating transcription of genes involved in cell differentiation immune responses neural function proliferation and reproduction 9-cis-Retinoic Acid exerts its biological activity primarily through RAR/RXR-mediated gene regulation In in vitro studies 9-cis-Retinoic Acid modulates expression of myotrophin (Mptn) and miR-375 in pancreatic -cell and breast cancer cell lines It exhibits nanomolar binding affinity to RAR (Ki 0 5 27 nM) and RXR (Ki 3 8 12 nM) Based on these pharmacological properties 9-cis-Retinoic Acid holds research potential in oncology immunomodulation neuroprotection and dermatological conditions
Medchemexpress LLC Tris (O-TBDMS)3 | 102522-47-4 | MFCD22574795 | >98.0% | 463.92 g·mol^-1 | C22H53NO3Si3 | 250 MG
Tris (O-TBDMS)3 is a tris-based chemical linker in which three hydroxyl groups are protected as tert-butyldimethylsilyl (TBDMS) ethers. The TBDMS groups are acid-labile, enabling controlled removal under mild acidic conditions. This reagent is used as a protected tris-functional building block in organic synthesis and for preparing conjugation-ready intermediates.
- Three hydroxyl groups protected as TBDMS ethers.
- Acid-labile protecting groups allow mild deprotection conditions.
- Useful as a tris-functional linker for multi-step synthesis.
- High purity suitable for synthetic applications.
Medchemexpress LLC Saccharic acid | 87-73-0 | MFCD09752094 | 98.0% | 210.14 g/mol | C6H10O8 | 250 MG
Saccharic acid is a small-molecule inhibitor used in biochemical research to inhibit β-glucuronidase activity. It is supplied as a high-purity solid for enzymatic assays, cell-based studies, and other laboratory applications where selective inhibition of glucuronide hydrolysis is required.
- Competitive inhibitor of β-glucuronidase for enzymatic and biochemical assays.
- High purity: 98.0% suitable for research applications.
- Chemical formula C6H10O8 and molecular weight 210.14 g/mol.
- CAS number 87-73-0 for unambiguous identification.
- Available as a 250 MG solid pack for laboratory use.
- Stable solid suitable for standard storage and handling in research labs.
Apexbio Technology LLC Thiamine HCl (Vitamin B1) 67-03-8 50mg
Thiamine HCl (Vitamin B1) (67-03-8) is a water-soluble micronutrient and biological precursor involved in coenzyme-dependent metabolic pathways It undergoes phosphorylation in cells to form thiamine pyrophosphate (TPP) which participates in carbohydrate metabolism through enzymatic reactions involving pyruvate dehydrogenase alpha-ketoglutarate dehydrogenase and branched-chain alpha-keto acid dehydrogenase complexes Thiamine HCl exerts its biological activity primarily through serving as a precursor to the coenzyme TPP enabling regulation of carbohydrate metabolic pathways In vitro assays frequently apply thiamine HCl to investigate enzyme activity regulation and coenzyme-dependent processes however clearly reported IC50 values are not specified due to its principal function as a coenzyme precursor Based on these attributes thiamine HCl holds research potential in studies of cellular energetics neuronal function and metabolic processes
Apexbio Technology LLC Thiamine HCl (Vitamin B1) 67-03-8 10mM (in 1mL H20)
Thiamine HCl (Vitamin B1) (67-03-8) is a water-soluble micronutrient and biological precursor involved in coenzyme-dependent metabolic pathways It undergoes phosphorylation in cells to form thiamine pyrophosphate (TPP) which participates in carbohydrate metabolism through enzymatic reactions involving pyruvate dehydrogenase alpha-ketoglutarate dehydrogenase and branched-chain alpha-keto acid dehydrogenase complexes Thiamine HCl exerts its biological activity primarily through serving as a precursor to the coenzyme TPP enabling regulation of carbohydrate metabolic pathways In vitro assays frequently apply thiamine HCl to investigate enzyme activity regulation and coenzyme-dependent processes however clearly reported IC50 values are not specified due to its principal function as a coenzyme precursor Based on these attributes thiamine HCl holds research potential in studies of cellular energetics neuronal function and metabolic processes