3-Amino-4-chloro-5-hydroxybenzoic acid CAS 93561-97-8
| CAS No. | 93561-97-8 |
| Molecular Formula | C7H6ClNO3 |
| Molecular Weight | 187.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 3-Amino-4-chloro-5-hydroxybenzoic acid (CAS 93561-97-8), a certified reference material (molecular formula C7H6ClNO3, MW 187.58 g/mol) for analytical method development and quality control.
Structurally, 3-Amino-4-chloro-5-hydroxybenzoic acid (C7H6ClNO3) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 187.58 g/mol, it falls into the medium-molecular-weight range. 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).
CATO manufactures 3-Amino-4-chloro-5-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 | C7H6ClNO3 |
| Molecular Weight | 187.58 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Amino Standards
- 4-Amino-2-chloro-6-methyl-3-nitropyridine (CAS 1026907-18-5)
- 3-Amino-5-chloro-4-hydroxybenzoic acid (CAS 1042055-74-2)
- Methyl 2-amino-4-chloropyrimidine-5-carboxylate (CAS 1353503-49-7)
- Methyl 5-amino-6-chloropyrazine-2-carboxylate (CAS 1378678-66-0)
- Methyl 3-Amino-6-chloropyrazine-2-carboxylate (CAS 1458-03-3)
- 2-Amino-5-chloro-4-methyl-3-nitropyridine (CAS 148612-17-3)
- 4-Amino-2-chloro-6-methylpyrimidine-5-carboxylic acid (CAS 1531671-00-7)
- 3-Amino-6-chloro-5-methylpyrazine-2-carboxylic acid (CAS 1555848-29-7)
Recommended Standards
- 3,5-Diamino-6-chloropicolinic acid (CAS 465513-12-6)
- 3-Amino-5-chloro-2-hydroxybenzoic acid (CAS 7180-80-5)
- 2-Hydroxy-5-nitrobenzyl Chloride (CAS 2973-19-5)
- 3-Chloro-2-methyl-4-nitrophenol (CAS 55289-28-6)
- 2-Ethylpyridine-4-carbothioic S-acid (CAS 5235-09-6)
- 4-[(5E)-5-[(4-Fluorophenyl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]-4-azatricyclo[5.2.1.0^{2,6}]dec-8-ene-3,5-dione (CAS 477766-87-3)
- 2-Bromo-6-methylpyridine 1-oxide (CAS 91668-84-7)
- (3-Chloro-1H-pyrrolo[2,3-b]pyridin-4-yl)methanamine (CAS 1432018-23-9)
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