4-Carbamoyl-2-hydroxybenzoic acid CAS 3444-73-3
| CAS No. | 3444-73-3 |
| Molecular Formula | C8H7NO4 |
| Molecular Weight | 181.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Carbamoyl-2-hydroxybenzoic acid.
CATO supplies 4-Carbamoyl-2-hydroxybenzoic acid (CAS 3444-73-3), a certified reference material (molecular formula C8H7NO4, MW 181.15 g/mol) for analytical method development and quality control.
4-Carbamoyl-2-hydroxybenzoic acid (C8H7NO4) 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 4-Carbamoyl-2-hydroxybenzoic 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 | C8H7NO4 |
| Molecular Weight | 181.15 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.) | 1957 |
| Nitrogen Atoms | 1 |
Related Carbamoyl Standards
- 5-Carbamoyl-2-hydroxybenzoic acid (CAS 101421-78-7)
- 2-Carbamoyl-6-hydroxybenzoic acid (CAS 1243372-82-8)
- 3-Carbamoyl-5-hydroxybenzoic acid (CAS 1243392-81-5)
- 2-Carbamoyl-5-hydroxybenzoic acid (CAS 1243393-12-5)
- 2-Carbamoyl-3-hydroxybenzoic acid (CAS 1243456-88-3)
- 3-Carbamoyl-2-hydroxybenzoic acid (CAS 19829-77-7)
- 3-Carbamoyl-4-hydroxybenzoic acid (CAS 76142-87-5)
- 4-Carbamoyl-3-hydroxybenzoic acid (CAS 773056-90-9)
Recommended Standards
- 4-Aminoisophthalic Acid (CAS 33890-03-8)
- 4-Amino-3-nitrobenzamide (CAS 41263-65-4)
- 4-Ethoxy-1H-[1,2,3]triazolo[4,5-d]pyridazin-7-ol (CAS 28689-74-9)
- 4-Amino-2-nitrobenzamide (CAS 242461-73-0)
- Ethyl 2-(3-amino-4-chloro-1h-pyrazol-1-yl)propanoate (CAS 1341543-84-7)
- 1,2,3,4-Tetrahydroisoquinoline-6-carbaldehyde (CAS 1187243-83-9)
- Benzyl 2-carbamimidoylpyrrolidine-1-carboxylate hydrochloride (CAS 1196146-02-7)
- (3AS,9aS)-4-(4-Methoxy-benzyl)-3a-methyl-decahydro-1,4-diaza-cyclopentacycloocten-5-one (CAS 1442080-83-2)
- 4-(4-Methoxyphenyl)-2-[4-(4-methoxyphenyl)-1,3-thiazol-2-yl]-1,3-thiazole (CAS 59543-71-4)
- 7-(Benzyloxy)-4-hydroxy-2H-chromen-2-one (CAS 30992-66-6)
- 5-(3,4-Dimethoxyphenyl)oxazolidin-2-one (CAS 66892-82-8)
- tert-Butyl 4-(methyl(1-(pyrazin-2-yl)ethyl)amino)piperidine-1-carboxylate (CAS 1289388-31-3)
- n-(3-Chlorobenzyl)-2-methylpropan-2-amine (CAS 893577-81-6)
- Exenatide (CAS 141758-74-9)
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