5-Amino-2,3-dimethoxybenzoic acid CAS 128670-46-2
| CAS No. | 128670-46-2 |
| Molecular Formula | C9H11NO4 |
| Molecular Weight | 197.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Amino-2,3-dimethoxybenzoic acid (CAS 128670-46-2) is a high-purity analytical reference standard with the molecular formula C9H11NO4 and a molecular weight of 197.19 g/mol.
5-Amino-2,3-dimethoxybenzoic acid (C9H11NO4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-Amino-2,3-dimethoxybenzoic 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 | C9H11NO4 |
| Molecular Weight | 197.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 1 |
Related Amino Standards
- 4-Amino-3-(2-hydroxyethoxy)benzoic acid (CAS 1096862-98-4)
- 2-((3-Amino-4-nitrophenyl)amino)ethan-1-ol (CAS 111861-02-0)
- 2-(4-Amino-1h-pyrazol-1-yl)-N-carbamoylpropanamide (CAS 1152506-10-9)
- 2-(2-Amino-4-hydroxypyrimidin-5-yl)-2-methylpropanoic acid (CAS 1184920-53-3)
- 4-Amino-3,5-dimethoxybenzoic Acid (CAS 123039-72-5)
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Recommended Standards
- 2,5-Dioxopyrrolidin-1-yl cyclobutanecarboxylate (CAS 128611-94-9)
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- 4-(2-Methyl-4-nitro-1H-imidazol-1-yl)butan-2-one (CAS 126664-28-6)
- Ethyl 5-acetyl-3-methylisoxazole-4-carboxylate (CAS 129663-13-4)
- 5-(4-Methylbenzenesulfonyl)-2-phenyl-4-(piperidin-1-yl)pyrimidine (CAS 478080-87-4)
- 1-(4-Chlorophenyl)-2-(triphenyl-l5-phosphaneylidene)ethan-1-one (CAS 1777-56-6)
- 2-([1,1'-biphenyl]-4-yl)-2-aminopropan-1-ol (CAS 1183406-67-8)
- 5-(4-Fluorophenyl)-N-((2-morpholinopyridin-4-yl)methyl)oxazole-2-carboxamide (CAS 1798539-01-1)
- Pemafibrate Impurity 19 (CAS CATO-C4X-290319)
- 2-(2-Bromo-6-(difluoromethyl)-3-nitropyridin-4-yl)acetic acid (CAS 1806916-75-5)
- 2-(2-methylpiperidin-1-yl)acetonitrile (CAS 824-50-0)
- Nadifloxacin Impurity 2 (CAS 80076-46-6)
- 6-Bromo-3-methoxypicolinonitrile (CAS 393813-61-1)
- Neuropeptide FF (5-8) (CAS 152050-35-6)
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