6-Methoxy-2H-chromene-3-carbaldehyde CAS 57543-40-5
| CAS No. | 57543-40-5 |
| Molecular Formula | C11H10O3 |
| Molecular Weight | 190.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-Methoxy-2H-chromene-3-carbaldehyde (CAS 57543-40-5) is a high-purity analytical reference standard with the molecular formula C11H10O3 and a molecular weight of 190.20 g/mol.
Based on its molecular formula C11H10O3, 6-Methoxy-2H-chromene-3-carbaldehyde contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 190.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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-Methoxy-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 | C11H10O3 |
| Molecular Weight | 190.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
Related Methoxy Standards
- 5-Methoxy-7-methyl-1H-indazole-3-carbaldehyde (CAS 1000340-55-5)
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- 6-Methoxy-3-methyl-benzofuran-2-carbaldehyde (CAS 10410-28-3)
- 4-Methoxy-1H,1'H-[2,2'-bipyrrole]-5-carbaldehyde (CAS 10476-41-2)
- 7-Methoxy-2-methylquinazolin-4(3H)-one (CAS 105493-90-1)
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Recommended Standards
- 6-Methoxy-1H-indole-2-carboxamide (CAS 364629-18-5)
- 6-METHOXY-2-METHYL-1,5-NAPHTHYRIDIN-4(1H)-ONE (CAS 872801-99-5)
- 6-Hydroxy-2-(1-methylethylidene)-1-benzofuran-3(2H)-one (CAS 88281-13-4)
- 6-Methoxy-2-methyl-4H-chromen-4-one (CAS 65547-58-2)
- Remodelin HBr (CAS 1622921-15-6)
- Methyl 3-aminoimidazo[1,2-a]pyridine-7-carboxylate (CAS 1427392-00-4)
- 2-(2,6-Dimethoxybenzoyl)-6-methylpyridine (CAS 1187170-61-1)
- (R)-3-Amino-5-(tert-butoxy)-5-oxopentanoic acid (CAS 115939-63-4)
- 5-Bromo-2-[(4-methylbenzyl)oxy]benzaldehyde (CAS 426224-20-6)
- 5-Isopropyloxazol-2-amine (CAS 33124-06-0)
- 4-Fluoro-2-(methylsulfanyl)aniline (CAS 439291-57-3)
- Ethyl 2-((2,4-dichlorophenyl)amino)-4-methylthiazole-5-carboxylate (CAS 500194-61-6)
- Ethyl 3-(3-amino-3-oxopropyl)-1-benzyl-4-oxopiperidine-3-carboxylate (CAS 941210-87-3)
- Semaglutide impurity 51 (CAS CATO-C4X-222651)
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