Naphtho[2,3-d][1,3]dioxole CAS 269-43-2
| CAS No. | 269-43-2 |
| Molecular Formula | C11H8O2 |
| Molecular Weight | 172.18 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 Naphtho[2,3-d][1,3]dioxole (CAS 269-43-2), a certified reference material (molecular formula C11H8O2, MW 172.18 g/mol) for analytical method development and quality control.
Based on its molecular formula C11H8O2, Naphtho[2,3-d][1,3]dioxole contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 172.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C11H8O2 |
| Molecular Weight | 172.18 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Naphtho Standards
- Naphtho[2,3-b]oxirene-2,7(1aH,7aH)-dione (CAS 15448-58-5)
- 2H-Naphtho[1,8-bc]furan-2-one (CAS 5247-85-8)
- 1H-Naphtho[1,2-d][1,2,3]triazole (CAS 233-59-0)
- 1H-Naphtho[1,8-de][1,2,3]triazine (CAS 204-03-5)
- 1H-Naphtho[2,3-d][1,2,3]triazole (CAS 269-12-5)
- 2H-Naphtho[1,2-d][1,2,3]triazole (CAS 233-58-9)
- 1H-Naphtho[1,2-d]imidazole (CAS 233-53-4)
- 2H-Naphtho[1,2-d]imidazole (CAS 23636-20-6)
Recommended Standards
- N-(Quinolin-8-yl)formamide (CAS 62937-22-8)
- Phenyl(1H-pyrazol-5-yl)methanone (CAS 19854-92-3)
- N-(Quinolin-2-yl)formamide (CAS 89067-40-3)
- Prop-2-yn-1-yl 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoate (CAS 873849-85-5)
- (2R,6R)-2,6-dimethylpiperazine (CAS 768335-42-8)
- (5-Bromo-1H-pyrrolo[2,3-b]pyridin-2-yl)methanol (CAS 1662706-59-3)
- 3-Butyl-6-fluoro-3-methyl-3,4-dihydro-2H-[1,3'-biquinolin]-2-one (CAS 918645-99-5)
- Sodium 5-[(4-Amino-1-naphthyl)azo]-2-[4-[(2-hydroxy-1-naphthyl)azo]-2-sulfonatostyryl]benzenesulfonate (CAS 6459-79-6)
- [1-(3-aminopropyl)-1h-1,2,3-triazol-4-yl]methanol (CAS 1132017-25-4)
- trans-4'-Cyano-[1,1'-biphenyl]-4-yl 4-ethylcyclohexanecarboxylate (CAS 67284-56-4)
- (+/-)-TRans-4-(2-furanyl)pyrrolidine-3-carboxylic acid (CAS 1260592-80-0)
- methyl 4-(4-methyl-1,3-thiazol-2-yl)butanoate (CAS 1803586-63-1)
- 1-(2-Chlorophenyl)cyclohexan-1-amine (CAS 1176104-00-9)
- Des-Val23-Tirzepatide (CAS CATO-CPTD788950)
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