5-Formyl-2,3-dimethoxybenzoic acid CAS 27203-73-2
| CAS No. | 27203-73-2 |
| Molecular Formula | C10H10O5 |
| Molecular Weight | 210.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C10H10O5, 5-Formyl-2,3-dimethoxybenzoic acid 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 210.18 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).
CATO supplies 5-Formyl-2,3-dimethoxybenzoic acid (CAS 27203-73-2), a certified reference material (molecular formula C10H10O5, MW 210.18 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.
As a certified reference material (CRM), 5-Formyl-2,3-dimethoxybenzoic acid 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 | C10H10O5 |
| Molecular Weight | 210.18 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
Related Formyl Standards
- 4-Formyl-3,5-dimethoxybenzoic acid (CAS 1282549-15-8)
- 3-Formyl-4-methoxyphenyl methyl carbonate (CAS 132638-49-4)
- (4-Formyl-2-methoxyphenoxy)acetic acid (CAS 1660-19-1)
- 2-(5-Formyl-2-methoxyphenoxy)acetic acid (CAS 19728-22-4)
- 2-(2-Formyl-4-methoxyphenoxy)acetic acid (CAS 24589-93-3)
- 2-(2-Formyl-5-methoxyphenoxy)acetic acid (CAS 856357-86-3)
- 2-(2-Formyl-6-methoxyphenoxy)acetic acid (CAS 40359-30-6)
- 2-Formyl-3,5-dimethoxybenzoic acid (CAS 208940-81-2)
Recommended Standards
- 5-Ethoxyisophthalic acid (CAS 203626-61-3)
- 5-Formyl-2,4-dimethoxybenzoic acid (CAS 633300-30-8)
- 5-Acetyloxy-4-acetyl-resorcinol (CAS 52751-41-4)
- 5-Methoxy-2-(methoxycarbonyl)benzoic acid (CAS 681469-62-5)
- Tris(3-phenylpropyl)phosphine oxide (CAS 145702-44-9)
- 4-Cyclopropoxy-3-(dimethylcarbamoyl)benzoic acid (CAS 1243396-23-7)
- 4,4'-Difluorobiphenyl-2,2'-dicarboxylic acid (CAS 1215205-82-5)
- Isopropoxypentafluorobenzene (CAS 61874-51-9)
- 2-Azabicyclo[2.1.1]hexane-2-carboxylic acid, 4-fluoro-3-(hydroxymethyl)-, 1,1-dimethylethyl ester (CAS 2927440-71-7)
- N-[3,5-Bis(trifluoromethyl)phenyl]-N'-[(1S,2S)-2-[(11bR)-3,5-dihydro-4H-dinaphth[2,1-c:1',2'-e]azepin-4-yl]-1,2-diphenylethyl]urea (CAS 1428959-93-6)
- 1-(3-Oxobutyl)-2,5-dihydro-1H-pyrrole-2,5-dione (CAS 1546506-43-7)
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- 4-Isocyanato-2-methylpyridine (CAS 1260666-53-2)
- Fibrinopeptide A, human TFA (CAS 61533-47-9)
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