2-Amino-4-benzyl-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carbonitrile CAS 489397-49-1
| CAS No. | 489397-49-1 |
| Molecular Formula | C17H14N2O3 |
| Molecular Weight | 294.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Amino-4-benzyl-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carbonitrile (CAS 489397-49-1), molecular formula C17H14N2O3 and molecular weight 294.30 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-Amino-4-benzyl-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carbonitrile (C17H14N2O3) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C17H14N2O3 |
| Molecular Weight | 294.30 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Related Amino Standards
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Recommended Standards
- 2-Allyl-1-hydroxy-8-methoxyanthracene-9,10-dione (CAS 85313-88-8)
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- 2-Acetyl-1-hydroxy-3,6-dimethylanthracene-9,10-dione (CAS 479482-90-1)
- 2-Methyl-1-(4-nitrobenzyl)-1H-indole-3-carbaldehyde (CAS 591210-36-5)
- 3,4-Dimethoxybicyclo[4.2.0]Octa-1,3,5-triene-7-carboxylic acid (CAS 41234-23-5)
- 1-(4-Acetylphenyl)-2-Methyl-1-Propanone (CAS 103931-20-0)
- N-[2-(Hydroxymethyl)thiophen-3-yl]-N-methyl-4-(propan-2-yl)benzene-1-sulfonamide (CAS 1708401-71-1)
- 4-(9H-Fluoren-9-yl)-4-phenylbutan-2-one (CAS 90033-34-4)
- (1-(Pyridin-3-ylmethyl)-1H-pyrazol-4-yl)boronic acid (CAS 1141888-95-0)
- (1-(4-Bromophenyl)piperidin-4-yl)methanol (CAS 1296224-87-7)
- 4-Diethylaminophenyl isothiocyanate (CAS 84381-54-4)
- (2S,4R)-1-((S)-2-((tert-butoxycarbonyl)amino)non-8-enoyl)-4-hydroxypyrrolidine-2-carboxylic acid (CAS 552335-47-4)
- 3-(4-(3-Isopropoxypropyl)-5-oxo-4,5-dihydro-[1,2,4]triazolo[4,3-a]quinazolin-1-yl)-N-(4-methoxybenzyl)propanamide (CAS 902933-03-3)
- Semaglutide impurity 197 (CAS CATO-C4X-2226197)
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