4,4′-(3,5-Pyridinediyl)bis[1,3-benzenedicarboxylic acid] CAS 1800536-56-4
| CAS No. | 1800536-56-4 |
| Molecular Formula | C21H13NO8 |
| Molecular Weight | 407.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies 4,4′-(3,5-Pyridinediyl)bis[1,3-benzenedicarboxylic acid] (CAS 1800536-56-4), a certified reference material (molecular formula C21H13NO8, MW 407.33 g/mol) for analytical method development and quality control.
Based on its molecular formula C21H13NO8, 4,4′-(3,5-Pyridinediyl)bis[1,3-benzenedicarboxylic acid] contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 407.33 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C21H13NO8 |
| Molecular Weight | 407.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 1 |
Related Pyridinediyl Standards
Recommended Standards
- 1-Chloro-4-[4-(4-chlorobenzenesulfonyl)butanesulfonyl]benzene (CAS 145917-53-9)
- [2-[4-[(4-Chlorophenyl)phenylmethyl]-1-piperazinyl]ethoxy]acetyl Chloride (CAS 776284-33-4)
- 5,5’-(pyridine-3,5-diyl)diisophthalic acid (CAS 1433029-60-7)
- 2,2'-(Pyridine-2,6-diyl)diterephthalic acid (CAS 2102525-51-7)
- 3-Chloro-[1,1'-biphenyl]-4-carboxylic acid (CAS 5728-40-5)
- 1-(chloromethyl)adamantane (CAS 770-70-7)
- Methyl 1-(2-cyanoethyl)-6-(4-methoxyphenyl)-3-methyl-1h-pyrazolo[3,4-b]pyridine-4-carboxylate (CAS 1018051-61-0)
- 3,5-Bis(3,4-dimethoxyphenyl)-4-methyl-1H-pyrazole (CAS 1159988-51-8)
- 1076199-96-6 2-Acetyl-3-(4-chlorophenyl)pentanedioic Acid 1,5-Diethyl Ester Diethyl 2-Aceto-3-(4-chlorophenyl)glutarate (CAS 1076199-96-6)
- Diheptylamine (CAS 2470-68-0)
- 3-(4-Chlorophenyl)-6-(2-fluorobenzyl)-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one (CAS 893914-27-7)
- N-((2S,3R,4R,5R)-3,4,5,6-Tetrahydroxy-1-oxohexan-2-yl)acetamide (CAS 282727-46-2)
- 5-chloro-3,3-dimethyl-1H,2H,3H-pyrrolo[2,3-c]pyridin-2-one (CAS 2041751-90-8)
- Tirzepatide Impurity 37 (CAS CATO-C4X-324037)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com