7-Chloro-5-methoxybenzofuran CAS 90533-29-2
| CAS No. | 90533-29-2 |
| Molecular Formula | C9H7ClO2 |
| Molecular Weight | 182.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 182.60 g/mol gives 7-Chloro-5-methoxybenzofuran distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 7-Chloro-5-methoxybenzofuran (CAS 90533-29-2), a certified reference material (molecular formula C9H7ClO2, MW 182.60 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 7-Chloro-5-methoxybenzofuran is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 182.60 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), 7-Chloro-5-methoxybenzofuran meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H7ClO2 |
| Molecular Weight | 182.60 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 5-Chloro-3,4-dihydro-2h-1-benzopyran-3-one (CAS 1154740-80-3)
- 5-Chloro-7-methylisobenzofuran-1(3H)-one (CAS 118343-26-3)
- 7-Chloro-5-hydroxy-2,3-dihydro-1H-inden-1-one (CAS 1199782-69-8)
- 5-Chloro-2,3-dihydrochromen-4-one (CAS 1199782-82-5)
- 4-Chloro-6-hydroxy-2,3-dihydro-1H-inden-1-one (CAS 1199782-98-3)
- 5-Chloro-6-hydroxy-2,3-dihydro-1H-inden-1-one (CAS 1228678-18-9)
- 6-Chloro-5-hydroxy-2,3-dihydro-1H-inden-1-one (CAS 1260012-31-4)
- 2-Chloro-4-ethenylbenzoic acid (CAS 1266121-77-0)
Recommended Standards
- 7-Chloro-4-hydroxy-1-indanone (CAS 24425-39-6)
- 7-Chloro-5-methylbenzofuran-3(2H)-one (CAS 3261-10-7)
- 6-Chlorochroman-3-one (CAS 26371-48-2)
- 7-Chloro-6-hydroxy-2,3-dihydro-1H-inden-1-one (CAS 90273-28-2)
- DMT-2'-F-Bz-dC (CAS 154771-33-2)
- (2-(1-Ethyl-3-methyl-1H-pyrazol-4-yl)quinolin-4-yl)methanol (CAS 1354706-34-5)
- 1-Acetyl-6-(trifluoromethoxy)indolin-2-one (CAS 2141958-75-8)
- 6-(Benzylthio)-5-methylnicotinaldehyde (CAS 1355204-08-8)
- Milnacipran impurity 31 (CAS CATO-C4X-103331)
- HIV-1 gag Protein p24 (65-73) (isolates MAL/U455) (H-6222.0001) (CAS 334731-59-8)
- 1-Benzyl-4-chloro-5-methoxy-1H-pyrazole-3-carboxylic acid (CAS 1710202-28-0)
- 2-Chloro-1,3-thiazole-5-carbonyl chloride (CAS 148637-74-5)
- Brivaracetam Impurity 82 (CAS CATO-C4X-200782)
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