3,5-Dihydroxypyridine CAS 3543-02-0
| CAS No. | 3543-02-0 |
| Molecular Formula | C5H5NO2 |
| Molecular Weight | 111.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 111.10 g/mol gives 3,5-Dihydroxypyridine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3,5-Dihydroxypyridine (CAS 3543-02-0), molecular formula C5H5NO2 and molecular weight 111.10 g/mol, is a CATO reference standard with documented purity and traceability.
3,5-Dihydroxypyridine (C5H5NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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.
As a certified reference material (CRM), 3,5-Dihydroxypyridine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C5H5NO2 |
| Molecular Weight | 111.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
Related Dihydroxypyridine Standards
- 2,6-Dihydroxypyridine (CAS 626-06-2)
- 2,4-Dihydroxypyridine (CAS 626-03-9)
- 2,3-Dihydroxypyridine (CAS 16867-04-2)
- 2,6-Dihydroxypyridine-4-carboxamide (CAS 14533-64-3)
- 4,6-dihydroxypyridine-2-carboxylic acid (CAS 27347-88-2)
- 5,6-Dihydroxypyridine-2-carboxylic Acid (CAS 63430-18-2)
- methyl 5,6-dihydroxypyridine-2-carboxylate (CAS 1260883-63-3)
- methyl 4,5-dihydroxypyridine-2-carboxylate (CAS 527681-11-4)
Recommended Standards
- 2-oxazol-2-ylacetaldehyde (CAS 944907-27-1)
- 3-Amino-1H-pyrazole-4-carboxaldehyde (CAS 2284110-65-0)
- 2-Methyloxazole-5-carbaldehyde (CAS 885273-42-7)
- 3-Aminofuran-2-carbaldehyde (CAS 56489-00-0)
- N-(3-fluorobenzyl)-1-methoxypropan-2-amine hydrochloride (CAS 1185303-96-1)
- (Z)-2-(dibenzo[b,e]oxepin-11(6H)-ylidene)acetaldehyde (CAS 83473-98-7)
- tert-Butyl (thiazolidin-2-ylmethyl)carbamate (CAS 720000-21-5)
- 2-(1,4-diazepan-1-yl)-1H-1,3-benzodiazole dihydrochloride (CAS 1240526-56-0)
- 3-(3,4-Difluorophenyl)-4-(4-Methylsulfonylphenyl)-5H-Furan-2-One (CAS 162011-83-8)
- 2-Bromo-4-methoxybenzamide (CAS 353278-57-6)
- Smp-114 (CAS 215174-50-8)
- 3-(4-Oxopyridin-1(4H)-yl)propanenitrile (CAS 68634-53-7)
- 4-Amino-N-((2R,3S)-3-amino-2-hydroxy-4-phenylbutyl)-N-(isobutyl-d9)benzenesulfonamide (CAS 1146967-60-3)
- Neuropeptide Y (22-36) (CAS 119019-65-7)
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