2-(Naphthalen-1-yl)-2H-chromene CAS 477-74-7
| CAS No. | 477-74-7 |
| Molecular Formula | C21H19N3 |
| Molecular Weight | 313.40 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 2-(Naphthalen-1-yl)-2H-chromene.
CATO supplies 2-(Naphthalen-1-yl)-2H-chromene (CAS 477-74-7), a certified reference material (molecular formula C21H19N3, MW 313.40 g/mol) for analytical method development and quality control.
Based on its molecular formula C21H19N3, 2-(Naphthalen-1-yl)-2H-chromene contains a nitrogen-containing heterocyclic scaffold, a nitrile group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 313.40 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C21H19N3 |
| Molecular Weight | 313.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 3 |
Related Naphthalen Standards
- 2-((5-Ethyl-4-(naphthalen-1-yl)-4H-1,2,4-triazol-3-yl)thio)acetic acid (CAS 886498-37-9)
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- (3Z)-3-[2-(Naphthalen-2-yl)-2-oxoethylidene]-1,2,3,4-tetrahydroquinoxalin-2-one (CAS 273196-12-6)
- (E)-2-(naphthalen-2-yl)-3-(2-nitrovinyl)-1H-indole (CAS 94464-02-5)
- 1-(Naphthalen-2-yl)-5-phenyl-1H-pyrazole-3-carboxylic acid (CAS 62160-34-3)
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Recommended Standards
- 2-(4'-Butyl-[1,1'-biphenyl]-4-yl)pyrimidine-5-carbonitrile (CAS 63617-97-0)
- 3-(1-Benzyl-1,2,3,6-tetrahydropyridin-4-yl)-1H-indole-5-carbonitrile (CAS 200714-65-4)
- 4-(6-Methylthiazolo[3,2-b][1,2,4]triazol-5-yl)-N-phenylthiazol-2-amine (CAS 187596-99-2)
- 3-(Pyridin-3-ylmethyl)-5-(pyridin-3-ylmethylene)-2-thioxothiazolidin-4-one (CAS 315692-96-7)
- 5-Chloro-3-[(2-methoxyphenyl)methyl]-1,2,4-thiadiazole (CAS 1029718-71-5)
- 6-Bromo-3-(bromomethyl)isoquinoline (CAS 1823552-43-7)
- 4-((Methylamino)methyl)benzenesulfonamide hydrochloride (CAS 116599-33-8)
- 1-(3-Chloro-phenyl)-3,5-dimethyl-1H-pyrazole-4-carbonitrile (CAS 1175831-40-9)
- tert-Butyl (1-(4-fluorophenyl)but-3-en-1-yl)carbamate (CAS 913563-71-0)
- 3-(2-Methylbutanamido)benzoic acid (CAS 890983-61-6)
- N-(4-iodophenyl)-4-methyl-2-(1-oxoisoindolin-2-yl)pentanamide (CAS 477889-82-0)
- ((2S,4R)-4-(3-chloropropyl)-5-oxopyrrolidin-2-yl)methyl 4-nitrobenzenesulfonate (CAS 1013937-94-4)
- 5-Allyl-1,3-difluoro-2-(isopentyloxy)benzene (CAS 1443310-76-6)
- Smac-N7 Peptide (CAS 401913-57-3)
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