5-Hydroxy-2-methyl-4-nitrobenzoic acid CAS 199929-14-1
| CAS No. | 199929-14-1 |
| Molecular Formula | C8H7NO5 |
| Molecular Weight | 197.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5-Hydroxy-2-methyl-4-nitrobenzoic 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.
5-Hydroxy-2-methyl-4-nitrobenzoic acid (CAS 199929-14-1), molecular formula C8H7NO5 and molecular weight 197.14 g/mol, is a CATO reference standard with documented purity and traceability.
5-Hydroxy-2-methyl-4-nitrobenzoic acid (C8H7NO5) 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.
Physical & Chemical Properties
| Molecular Formula | C8H7NO5 |
| Molecular Weight | 197.14 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2014 |
| Nitrogen Atoms | 1 |
Related Hydroxy Standards
- 2-Hydroxy-2-(4-nitrophenyl)acetic acid (CAS 10098-39-2)
- Methyl 2-hydroxy-6-nitrobenzoate (CAS 1261504-50-0)
- 2-(3-Hydroxy-5-nitrophenyl)acetic acid (CAS 1261746-17-1)
- Methyl 2-hydroxy-4-nitrobenzoate, 97% (CAS 13684-28-1)
- 2-Hydroxy-6-(methoxycarbonyl)isonicotinic acid (CAS 1373959-10-4)
- 4-Hydroxy-6-(methoxycarbonyl)picolinic acid (CAS 1374754-19-4)
- 6-Hydroxy-4-(methoxycarbonyl)picolinic acid (CAS 1393531-84-4)
- 2-(3-Hydroxy-4-nitrophenyl)acetic acid (CAS 152148-79-3)
Recommended Standards
- 5-Hydroxy-2-methyl-3-nitrobenzoic acid (CAS 937661-25-1)
- 5-Hydroxy-4-(methoxycarbonyl)nicotinic acid (CAS 243980-03-2)
- 5-Formyl-3-methyl-1H-pyrrole-2,4-dicarboxylic acid (CAS 79754-38-4)
- 5-Hydroxy-4-methyl-2-nitrobenzoic acid (CAS 6632-24-2)
- N-t-Butyl 2-(BOC-amino)propanamide (CAS 1400644-20-3)
- 3-(3-Nitrophenyl)-4,5-dihydro-1h-1,2,4-triazol-5-one (CAS 57508-55-1)
- N-Ethyl 5-bromo-2-nitroaniline (CAS 813448-98-5)
- Policresulen Impurity 6 (CAS 17688-83-4)
- Levetiracetam EP Impurity G (CAS 7682-20-4)
- Nafamostat Impurity 14 (CAS 62529-01-5)
- Methyl 2-Isocyanopropanoate (CAS 33115-74-1)
- 5-(2,5-Dihydroxybenzylamino)-2-hydroxybenzoic Acid (CAS 125697-93-0)
- 4-((1R,4R)-4-hydroxycyclohexyl)-1-methylpiperazin-2-one (CAS 1046452-53-2)
- Semaglutide Impurity 163 (x TFA Salt) (CAS CATO-C4X-2226163)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com