2,7-Dimethyl-5-oxo-N-(3-(trifluoromethyl)phenyl)-5H-chromeno[2,3-b]pyridine-3-carboxamide CAS 338751-38-5
| CAS No. | 338751-38-5 |
| Molecular Formula | C22H15F3N2O3 |
| Molecular Weight | 412.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,7-Dimethyl-5-oxo-N-(3-(trifluoromethyl)phenyl)-5H-chromeno[2,3-b]pyridine-3-carboxamide (C22H15F3N2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2,7-Dimethyl-5-oxo-N-(3-(trifluoromethyl)phenyl)-5H-chromeno[2,3-b]pyridine-3-carboxamide (CAS 338751-38-5) is a high-purity analytical reference standard with the molecular formula C22H15F3N2O3 and a molecular weight of 412.36 g/mol.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 2,7-Dimethyl-5-oxo-N-(3-(trifluoromethyl)phenyl)-5H-chromeno[2,3-b]pyridine-3-carboxamide 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 | C22H15F3N2O3 |
| Molecular Weight | 412.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 3-(1-(4-Methoxyphenyl)-1H-pyrazol-3-yl)-1-(3-(trifluoromethyl)phenyl)pyridazin-4(1H)-one (CAS 318498-03-2)
- Cyflufenamid (CAS 180409-60-3)
- 4-(4-Fluorobenzyl)-3-((4-nitrobenzyl)thio)-5-(trifluoromethyl)-4H-1,2,4-triazole (CAS 294853-30-8)
- 2-Chloro-N-(2-cyanopropan-2-yl)-N-cyclopropylacetamide (CAS 885461-28-9)
- 1-((1,4-Dioxaspiro[4.5]decan-2-yl)methyl)-3-(tert-butyl)urea (CAS 899730-23-5)
- Cyetpyrafen (CAS 1253429-01-4)
- ethyl 4,4,4-trifluoro-3-phenylbut-2-enoate (CAS 10075-06-6)
- (R)-1-(3-(1,1-Difluoro-2-methoxyethyl)phenyl)ethan-1-amine (CAS 2488795-55-5)
- (Z)-N-((2-Amino-6,7-dihydrothiazolo[5,4-c]pyridin-5(4H)-yl)(methylimino)methyl)benzamide (CAS 97817-38-4)
- 1-(Cyclopropylmethyl)-5-(trifluoromethyl)-1h-pyrazole-3-carboxylic acid (CAS 2089753-92-2)
- 3-Chloro-N-[2-(2-methyl-1H-imidazol-1-yl)ethyl]aniline (CAS 1249305-27-8)
- 92AK1Y27MZ 67-21-0 Ethionine, DL- DL-2-Amino-4-(ethylthio)butyric acid Butyric acid, 2-amino-4-(ethylthio)-, DL- DL-Ethionine Homocysteine, S-ethyl- U-1434 4-04-00-03194 (Beilstein Handbook Reference) Aethionin 2-Amino-4-(ethylthio)butyric acid BRN 1722529 Butyric acid, DL-2-amino-4-(ethylthio)- CCRIS 288 CN 8676 EINECS 200-647-0 (+-)-Ethionine DL-Homocysteine, S-ethyl- NSC 751 S-Ethyl-DL-homocysteine S-Ethylhomocysteine UNII-92AK1Y27MZ (CAS 67-21-0)
- Semaglutide impurity 84 (CAS CATO-C4X-222684)
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