N-(6-Methoxy-3-(2-methoxyethyl)benzo[d]thiazol-2(3H)-ylidene)-2-oxo-2H-chromene-3-carboxamide CAS 865161-46-2
| CAS No. | 865161-46-2 |
| Molecular Formula | C21H18N2O5S |
| Molecular Weight | 410.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
N-(6-Methoxy-3-(2-methoxyethyl)benzo[d]thiazol-2(3H)-ylidene)-2-oxo-2H-chromene-3-carboxamide (CAS 865161-46-2), molecular formula C21H18N2O5S and molecular weight 410.44 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C21H18N2O5S, N-(6-Methoxy-3-(2-methoxyethyl)benzo[d]thiazol-2(3H)-ylidene)-2-oxo-2H-chromene-3-carboxamide contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 410.44 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C21H18N2O5S |
| Molecular Weight | 410.44 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- Bis(3,5-dimethylphenyl) (4-ethylphenyl) phosphate (CAS 7144-07-2)
- Porcupine-IN-1 (CAS 2036044-77-4)
- (R)-1-(3,4-dimethoxyphenyl)ethan-1-amine (CAS 100570-24-9)
- 2-Cycloheptyl-2-hydroxyacetic acid (CAS 18537-84-3)
- 5-amino-N,N-dimethylpyridine-2-carboxamide (CAS 1206641-29-3)
- 6-(1-(4-Chlorophenoxy)ethyl)-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 339030-10-3)
- cis-4-azidocyclohexanecarboxylic acid (CAS 863222-21-3)
- S,S (2-Amino-3-methylpentanoylamino)acetic acid tert-butyl ester (CAS 118382-70-0)
- 1,1,3,3,6-Pentamethyl-7-nitro-2,3-dihydro-1H-inden-5-amine (CAS 255393-53-4)
- (2S)-2-amino-2-cycloheptyl-acetic acid (CAS 1447714-17-1)
- (2R-4R)-2-[L-Xylo-tetrahydroxybut-1-yl]-1-3-thiazolidine-4-carboxylic acid (CAS 115184-30-0)
- Semaglutide impurity 71 (CAS CATO-C4X-222671)
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