5-Chloro-3-(1H-pyrrol-1-yl)-1-benzofuran-2-carboxylic acid CAS 499211-98-2
| CAS No. | 499211-98-2 |
| Molecular Formula | C13H8ClNO3 |
| Molecular Weight | 261.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-Chloro-3-(1H-pyrrol-1-yl)-1-benzofuran-2-carboxylic acid.
CATO supplies 5-Chloro-3-(1H-pyrrol-1-yl)-1-benzofuran-2-carboxylic acid (CAS 499211-98-2), a certified reference material (molecular formula C13H8ClNO3, MW 261.66 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 5-Chloro-3-(1H-pyrrol-1-yl)-1-benzofuran-2-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 261.66 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 5-Chloro-3-(1H-pyrrol-1-yl)-1-benzofuran-2-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H8ClNO3 |
| Molecular Weight | 261.66 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
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Recommended Standards
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- Cytarabine Impurity 7 (CAS 32659-31-7)
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- 14587-50-9 A2P950OCL0 Difeterol [INN] Difeterol alpha-(1-((2-(Diphenylmethoxy)ethyl)methylamino)ethyl)benzyl alcohol 2-(N-Benzhydryloxyethyl-N-methyl)amino-1-phenylpropanol Pandryl UNII-A2P950OCL0 (CAS 14587-50-9)
- 5-Hydroxy-2-(4-hydroxy-3-methoxyphenyl)-7-methoxy-4H-chromen-4-one (CAS 25739-41-7)
- Ethyl (4-aminobenzoyl)glycinate (CAS 20333-85-1)
- 1-cyclopentylimidazolidin-2-one (CAS 1279815-55-2)
- Semaglutide Impurity 187 (CAS CATO-C4X-2226187)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com