6-Chloro-4-hydroxy-7-methyl-2-oxo-2H-chromene-3-carbaldehyde CAS 925005-58-9
| CAS No. | 925005-58-9 |
| Molecular Formula | C11H7ClO4 |
| Molecular Weight | 238.62 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 6-Chloro-4-hydroxy-7-methyl-2-oxo-2H-chromene-3-carbaldehyde.
CATO supplies 6-Chloro-4-hydroxy-7-methyl-2-oxo-2H-chromene-3-carbaldehyde (CAS 925005-58-9), a certified reference material (molecular formula C11H7ClO4, MW 238.62 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, 6-Chloro-4-hydroxy-7-methyl-2-oxo-2H-chromene-3-carbaldehyde is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 238.62 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).
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.
As a certified reference material (CRM), 6-Chloro-4-hydroxy-7-methyl-2-oxo-2H-chromene-3-carbaldehyde 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 | C11H7ClO4 |
| Molecular Weight | 238.62 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 methanol, ethanol, 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 2-[4-chloro-3-(difluoromethyl)-5-methyl-1h-pyrazol-1-yl]propanoic acid (CAS 1005584-35-9)
- 5-Chloro-2-(trifluoromethylthio) nicotinonitrile (CAS 1204234-33-2)
- 4-Chloro-7-methoxy-2-oxo-2H-chromene-3-carbaldehyde (CAS 122978-33-0)
- 6-Chloro-3-methyl-4-oxo-4H-chromene-2-carboxylic Acid (CAS 1239779-74-8)
- 4-(3-Chloro-2,4-difluorophenyl)-1H-pyrrole-3-carbonitrile (CAS 124185-27-9)
- 4-Chloro-2-(trifluoromethyl)thieno[3,2-d]pyrimidine (CAS 147972-27-8)
- Ethyl 4-chloro-1-(2,2-difluoroethyl)-1H-pyrazole-3-carboxylate (CAS 1856061-98-7)
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Recommended Standards
- 5-(Chlorosulfonyl)-2-fluorobenzoic Acid (CAS 37098-75-2)
- 6-Chloro-7-methyl-4-oxo-4h-chromene-2-carboxylic acid (CAS 262590-94-3)
- 4-Chloro-7-(difluoromethyl)quinoline-3-carbonitrile (CAS 2188210-72-0)
- 8-(Chloromethyl)-6H-[1,3]dioxolo[4,5-g]chromen-6-one (CAS 484000-52-4)
- Metipranolol HCl (CAS 36592-77-5)
- 4-Ethoxy-5-isopropyl-2-methyl-N-((tetrahydrofuran-2-yl)methyl)benzenesulfonamide (CAS 898647-45-5)
- 5,5-Difluoro-3-(fluoromethyl)-4,5,6,6a-tetrahydro-3aH-cyclopenta[d]isoxazole (CAS 1823381-28-7)
- 1,3-Dicyclohexyl-1,3-dinitrosourea (CAS CATO-C3D-262798)
- (R)-tert-Butyl (1-(2-aminoethyl)pyrrolidin-3-yl)(isopropyl)carbamate (CAS 1354015-47-6)
- ethyl 2-(3-methyl-1H-pyrazol-1-yl)propanoate (CAS 1170807-44-9)
- Clopidogrel Impurity 50 (CAS CATO-C4X-102950)
- 2-(4-Nitrophenoxy)benzoic acid (CAS 6082-87-7)
- 4-(Difluoromethyl)-2-fluoroanisole (CAS 1214364-97-2)
- Vasonatrin Peptide (VNP) trifluoroacetate salt (CAS 141676-35-9)
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