2-Chloro-1-benzofuran-3-carbaldehyde CAS 79091-27-3
| CAS No. | 79091-27-3 |
| Molecular Formula | C9H5ClO2 |
| Molecular Weight | 180.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C9H5ClO2, 2-Chloro-1-benzofuran-3-carbaldehyde contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 180.59 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).
CATO supplies 2-Chloro-1-benzofuran-3-carbaldehyde (CAS 79091-27-3), a certified reference material (molecular formula C9H5ClO2, MW 180.59 g/mol) for analytical method development and quality control.
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 2-Chloro-1-benzofuran-3-carbaldehyde 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 | C9H5ClO2 |
| Molecular Weight | 180.59 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 6-Chloro-1H-pyrrolo[3,2-c]pyridine-3-carbaldehyde (CAS 1000341-64-9)
- 8-Chloro-3,4-dihydroquinazolin-4-one (CAS 101494-95-5)
- 7-Chloro-4H-1-benzopyran-4-one (CAS 101860-74-6)
- 8-Chloro-1,7-naphthyridin-4(1H)-one (CAS 1018812-91-3)
- 4-Chloro-1h-indazole-3-carbaldehyde (CAS 102735-85-3)
- 3-Chloro-1H-indazole-6-carbaldehyde (CAS 1086391-23-2)
- 8-Chloro-1,5-naphthyridin-2(1H)-one (CAS 1092650-94-6)
- 5-Chloro-1H-indazole-7-carbaldehyde (CAS 1100213-27-1)
Recommended Standards
- 2-(4-Chlorophenyl)-1,3,4-oxadiazole (CAS 23289-10-3)
- 2-Chloro-1H-benzimidazole-5-carboxaldehyde (CAS 288579-82-8)
- 2-(3-Chlorophenyl)-1,3,4-oxadiazole (CAS 5378-33-6)
- 2-chloro-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde (CAS 847801-93-8)
- 2-Cyclopentylpiperidine hydrochloride (CAS 1177350-52-5)
- 2-(5,7-Dioxo-5,7-dihydro-6h-pyrrolo[3,4-b]pyridin-6-yl)ethane-1-sulfonyl chloride (CAS 1105192-46-8)
- 2-ethoxy-4-[(ethylamino)methyl]phenol hydrochloride (CAS 1177299-69-2)
- 4-[(3-methylbutanamido)methyl]benzoic acid (CAS 925580-56-9)
- Linagliptin Impurity 160 (CAS CATO-C4X-1101160)
- 4-(3-ethyl-1,2,4-oxadiazol-5-yl)cyclohexan-1-one (CAS 1343917-56-5)
- Mometasone Impurity 36 (CAS CATO-C4X-170436)
- 3-Cyano-N-(furan-2-ylmethyl)-N-(2-(thiophen-2-yl)ethyl)benzamide (CAS 1396882-24-8)
- 1,1-diphenylpropan-2-amine hydrochloride (CAS 3139-54-6)
- Semaglutide (CAS 910463-68-2（free base）)
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