Imidazopyrimidines
Medchemexpress LLC Caffeine orange | 1632296-13-9 | 95.4% | 365.16 g/mol | C20H15BF3N3 | 10 MG
Caffeine orange is an aqueous-phase, turn-on fluorescent probe selective for caffeine. It emits orange fluorescence upon excitation at 532 nm and is supplied as a solid for research use in fluorescence-based caffeine detection and sensing applications.
- Selective turn-on fluorescence response to caffeine in aqueous samples.
- High extinction coefficient and photostability for reliable signal.
- Narrow emission bandwidth producing orange emission under 532 nm excitation.
- Soluble in DMSO (100 mg/mL) with ultrasonic assistance for stock solution preparation.
- Store protected from light at -20°C; in solution, store at -80°C for up to 6 months.
Medchemexpress LLC Theophylline (Standard) | 58-55-9 | 99.99% | 25 MG
Theophylline (Standard) is an analytical standard, also known as 1,3-Dimethylxanthine. This potent phosphodiesterase (PDE) inhibitor and adenosine receptor antagonist is intended for research and analytical applications. It is commonly used as a reference standard for assay in qualitative, quantitative, and methodological research experiments such as HPLC, GC, and MS.
- Analytical standard for research and analysis
- Inhibits PDE3 activity
- Acts as an adenosine receptor antagonist
- Increases IL-10 for anti-inflammatory effects
- Induces apoptosis
Medchemexpress LLC Xanthine | 69-89-6 | MFCD00078453 | 100.0% | 152.11 g/mol | C5H4N4O2 | 10 G
Xanthine is a purine alkaloid and endogenous metabolite used as a research reagent and reference standard. It functions as an intermediate in purine degradation and is used in biochemical and metabolic studies, analytical method development, and assay validation. Supplied as a powdered solid with defined molecular properties suitable for laboratory use.
- Purine alkaloid and endogenous metabolite suitable for research.
- Useful as a reference standard in analytical and metabolic assays.
- Stable powdered form for ease of handling and storage.
- Available in multiple pack sizes to support small- and large-scale experiments.
- Characterized molecular formula C5H4N4O2 and molecular weight 152.11 g/mol.
- High purity suitable for biochemical applications.
Medchemexpress LLC Theophylline (Standard) | 58-55-9 | 99.99% | 50 MG
Theophylline (Standard) is the analytical standard of Theophylline. It is intended for research and analytical applications. It inhibits PDE3 activity to relax airway smooth muscle, has anti-inflammatory activity by increasing IL-10 and inhibiting NF-κB into the nucleus, and induces apoptosis.
- Potent phosphodiesterase (PDE) inhibitor
- Adenosine receptor antagonist
- Histone deacetylase (HDAC) activator
- Induces apoptosis
- Used for asthma and chronic obstructive pulmonary disease (COPD) research
- Commonly used in qualitative, quantitative, and methodological research experiments in HPLC, GC, and MS
eMolecules Caffeine | Toronto Research ChemicalsMFCD00005758 | 194.194 | C8H10N4O2 | 95.000 | Cn1cnc2n(C)c(=O)n(C)c(=O)c12 | 1g | 486592217
Caffeine | Toronto Research ChemicalsMFCD00005758 | 194.194 | C8H10N4O2 | 95.000 | Cn1cnc2n(C)c(=O)n(C)c(=O)c12 | 1g | 486592217
Medchemexpress LLC Xanthine | 69-89-6 | MFCD00078453 | 98.9% | 152.11 g/mol | C5H4N4O2 | 5 G
Xanthine is a purine-derived endogenous metabolite and intermediate in purine degradation, commonly used as a research standard and reference material in biochemical and analytical workflows. The compound is characterized by the chemical formula C5H4N4O2 and a molecular weight of 152.11 g/mol, and is supplied for laboratory use in small, controlled pack sizes.
- Provides a stable reference for analytical assays and method development.
- Suitable for biochemical and enzymology studies of purine metabolism.
- Available in small pack sizes for laboratory use.
- Store powder at -20°C for long-term stability; shorter storage at 4°C is possible.
- High purity grades available to support reliable experimental results.
Sigma Aldrich Fine Chemicals Biosciences Caffeine anhydrous 99 fCC25KG
Caffeine is an addictive psychoactive compound consumed mostly in the form of brewed coffee instant coffee tea and caffeinated soft drinks. Caffeine is reported to be an allergen and causes anaphylaxis. It is added to common analgesics such as paracetamol ibuprofen and aspirin for enhancing their analgesic efficacy. It is a plant-derived drug and has been detected in low doses in the floral nectar and pollen of Citrus. Determination of caffeine in beverages by square-wave voltammetry using Nafion-ruthenium oxide pyrochlore chemically modified electrode has been reported. Caffeine acts as an antagonist of adenosine A1 receptors (A1R) and A2AR at non-toxic doses. Chronic consumption of caffeine is reported to prevent the memory impairment in type 2 diabetic mice.
Chem-Impex International, Inc. Adenine hemisulfate salt | MFCD00213655 | 100G
Adenine hemisulfate salt, MFCD00213655, 100G
Sigma Aldrich Fine Chemicals Biosciences Adenine hemisulfate salt >=99% | 321-30-2 | MFCD00213655 | 100G
Adenine hemisulfate salt >=99% | Purity: >=99% | Mol Wt: 184.17 | 321-30-2 | MFCD00213655 | 100G
Bioworld Adenine, 50 g
Adenine (6-Aminopurine)Synonyms: 6-Aminopurine or Vitamin B4A purine nucleobase and a component of DNAAuxin growth regulatorUltra Pure GradePlant cell culture testedAppearance: SolidBoiling Point : 553.49 °C at 760 mmHg (Predicted)Density : 1.61 g/cm3 (Predicted)Melting Point: >360 °C (lit.)RTECS Number: AU6125000
Sigma Aldrich Fine Chemicals Biosciences 6-Thioguanine | 154-42-7 | MFCD00233553 | 2.5mg
6-Thioguanine | Mol Wt: 167.19 | 154-42-7 | MFCD00233553 | 2.5mg
Sigma Aldrich Fine Chemicals Biosciences Caffeine powder ReagentPlu500G
Caffeine is a widely ingested pharmacologically active substance. It belongs to the class of methylxanthines. It is a naturally occurring alkaloid found in coffee cocoa and other plants. Caffeine might be associated with osteoporosis cardiovascular risk arrhythmia and gastrointestinal disturbances. Caffeine is used to treat orthostatic hypotension bronchopulmonary dysplasia and apnea of prematurity (AOP).