3-Formyl-5-methoxybenzoic acid CAS 367519-88-8
| CAS No. | 367519-88-8 |
| Molecular Formula | C9H8O4 |
| Molecular Weight | 180.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Formyl-5-methoxybenzoic acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 3-Formyl-5-methoxybenzoic acid (CAS 367519-88-8), a certified reference material (molecular formula C9H8O4, MW 180.16 g/mol) for analytical method development and quality control.
The molecular framework of 3-Formyl-5-methoxybenzoic acid (C9H8O4) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
CATO manufactures 3-Formyl-5-methoxybenzoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H8O4 |
| Molecular Weight | 180.16 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.) | 2025 |
Related Formyl Standards
- 3-Formyl-2-methoxybenzoic acid (CAS 1289170-62-2)
- Methyl 2-Formyl-3-hydroxybenzoate (CAS 131524-43-1)
- Methyl 2-formyl-6-hydroxybenzoate (CAS 136192-84-2)
- Methyl 2-formyl-5-hydroxybenzoate (CAS 1361963-60-1)
- N-(6-Formyl-4-hydroxypyridin-2-yl)acetamide (CAS 1393533-89-5)
- Methyl 3-formyl-5-hydroxybenzoate (CAS 1393545-50-0)
- 2-(3-Formyl-5-hydroxyphenyl)acetic acid (CAS 152880-89-2)
- Methyl 2-formyl-4-hydroxybenzoate (CAS 1701806-37-2)
Recommended Standards
- 3-Formyl-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole-2-carboxylic acid (CAS 2166653-61-6)
- 3-Hydroxy-5-methoxyisobenzofuran-1(3H)-one (CAS 70097-50-6)
- 3-Formyl-4-methoxybenzoic Acid (CAS 91420-99-4)
- 3-Hydroxy-6-methoxyisobenzofuran-1(3H)-one (CAS 70097-49-3)
- Boron trifluoride phosphoric acid complex 100ML (CAS 13669-76-6)
- 5-Iodo-2-isopropylphenol (CAS 1243453-56-6)
- 3-Benzyl-3-azaspiro[bicyclo[3.2.1]octane-8,2'-[1,3]dioxolane] (CAS 1019208-04-8)
- Fmoc-(R)-3-Amino-3-(2,4-Difluorophenyl)-propionic acid (CAS 1260614-57-0)
- 5-(4-Bromobenzoyl)-N-(3,4-dichlorophenyl)-1,3-thiazol-2-amine (CAS 339023-03-9)
- N'-benzoyl-3-(1H-pyrrol-1-yl)thiophene-2-carbohydrazide (CAS 672925-17-6)
- 3-(2,4-dimethylbenzoyl)-4H,5H,6H-cyclopenta[b]thiophen-2-amine (CAS 1082778-95-7)
- Ethyl 4-(4-(benzylamino)piperidin-1-yl)benzoate (CAS 1132838-12-0)
- Decanedioic acid, polymer with 2,2'-oxybis[ethanol] (CAS 25610-21-3)
- D-Lys20-Tirzepatide (CAS CATO-CPTD788914)
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