5-Methoxyisophthalic Acid CAS 46331-50-4
| CAS No. | 46331-50-4 |
| Molecular Formula | C9H8O5 |
| Molecular Weight | 196.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C9H8O5, 5-Methoxyisophthalic 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 196.16 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).
5-Methoxyisophthalic Acid (CAS 46331-50-4) is a high-purity analytical reference standard with the molecular formula C9H8O5 and a molecular weight of 196.16 g/mol.
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), 5-Methoxyisophthalic 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 | C9H8O5 |
| Molecular Weight | 196.16 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.) | 1970 |
Related Methoxyisophthalic Standards
Recommended Standards
- 5-Methoxy-2-nitrobenzamide (CAS 41994-92-7)
- 5-Nitro-2-pyridinecarboxylic Acid Ethyl Ester (CAS 30563-98-5)
- 5-Amino-4-methyl-2-nitrobenzoic acid (CAS 204254-63-7)
- 5-Oxo-1-(4H-1,2,4-triazol-4-yl)pyrrolidine-3-carboxylic acid (CAS 898645-54-0)
- Methyl 3-[4-({4-fluoro-4'-methyl-[1,1'-biphenyl]-2-yl}methoxy)phenyl]propanoate (CAS 1374516-35-4)
- N-Isopropylbenzofuran-2-carboxamide (CAS 24282-72-2)
- 3-Methoxy-4-((3-propyl-1,2,4-oxadiazol-5-yl)methoxy)benzaldehyde (CAS 1119415-22-3)
- 3-(4-Bromophenyl)-5,6-diphenyl-1,2,4-triazine (CAS 94872-87-4)
- 4-(2-Fluoroethyl)benzoic acid (CAS 819883-84-6)
- (5-Bromo-3-(trifluoromethyl)pyridin-2-yl)methanamine (CAS 1416768-36-9)
- 5-Amino-1-(4-bromophenyl)-1H-1,2,3-triazole-4-carboxamide (CAS 929837-67-2)
- 3'-Methoxy-[1,1'-biphenyl]-2-amine hydrochloride (CAS 1082749-15-2)
- 6-(Furan-2-yl)nicotinic acid (CAS 884507-36-2)
- D-Ser32-Tirzepatide (CAS CATO-CPTD788677)
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