2,6-Dihydroxy-1-naphthaldehyde CAS 20258-98-4
| CAS No. | 20258-98-4 |
| Molecular Formula | C11H8O3 |
| Molecular Weight | 188.18 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 2,6-Dihydroxy-1-naphthaldehyde (CAS 20258-98-4), a certified reference material (molecular formula C11H8O3, MW 188.18 g/mol) for analytical method development and quality control.
2,6-Dihydroxy-1-naphthaldehyde (C11H8O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, 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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C11H8O3 |
| Molecular Weight | 188.18 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Dihydroxy Standards
- 2,3-Dihydroxy-1-naphthaldehyde (CAS 2089-80-7)
- 3,6-Dihydroxy-2-naphthaldehyde (CAS 477727-36-9)
- 352330-51-9 N',4-dihydroxy-3-methoxybenzene-1-carboximidamide NE54209 (CAS 352330-51-9)
- 2,6-Dihydroxy-3-chlorobenzoic Acid 26754-77-8 3-Chloro-2,6-dihydroxybenzoic Acid 3-Chloro-|A-resorcylic Acid (CAS 26754-77-8)
- 3-dihydroxy-broMobenzene (CAS 14381-51-2)
- N-(1,3-Dihydroxy-2-(hydroxymethyl)propan-2-yl)methacrylamide (CAS 5001-88-7)
- DIHYDROXY-1,4-NAPHTHOQUINONE,5,8- (CAS 10281-53-5)
- 2,3-Dihydroxy-6,7-dimethylquinoxaline, 97% (CAS 2474-50-2)
Recommended Standards
- 2,5-Furandione, 2-(2-phenylhydrazone) (CAS 52726-95-1)
- 2,7-Dihydroxynaphthalene-1-carbaldehyde (CAS 20258-95-1)
- 2,5-Dimethoxyterephthalonitrile (CAS 4655-68-9)
- 2-3-O-Isopropylidene-D-lyxonic acid-1-4-lactone (CAS 56543-10-3)
- 2-((3,4,4-Trifluorobut-3-en-1-yl)thio)benzoic acid (CAS 672951-84-7)
- N-(4-bromophenyl)-2-hydroxyacetamide (CAS 21919-10-8)
- (1R,2S,4R)-7-oxabicyclo[2.2.1]Heptane-2-carboxylic acid (CAS 937053-06-0)
- Methyl 2-(2-(2-amino-3-methylbenzyl)-1,3-dioxolan-2-yl)acetate (CAS 2677030-83-8)
- (Z)-tert-Butyl 2-(2,2-dimethylhexan-3-ylidene)hydrazinecarboxylate (CAS 2007931-00-0)
- (4-(2-(Azepan-1-yl)ethoxy)phenyl)methanol hydrochloride (CAS 328933-65-9)
- tert-Butyl(4'-cyano-[1,1'-biphenyl]-4-yl)carbamate (CAS 672309-99-8)
- CAS 867-54-9 (CAS 867-54-9)
- 1-(7-Chloro-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridin-3-yl)ethanone (CAS 437384-08-2)
- Semaglutide impurity 277 (CAS CATO-C4X-2226277)
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