Isopropyl 2-amino-4-(2,4-dichlorophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate CAS 923553-19-9
| CAS No. | 923553-19-9 |
| Molecular Formula | C22H17Cl2NO4S |
| Molecular Weight | 462.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Isopropyl 2-amino-4-(2,4-dichlorophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Isopropyl 2-amino-4-(2,4-dichlorophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate (CAS 923553-19-9), molecular formula C22H17Cl2NO4S and molecular weight 462.35 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C22H17Cl2NO4S, Isopropyl 2-amino-4-(2,4-dichlorophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 462.35 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.
As a certified reference material (CRM), Isopropyl 2-amino-4-(2,4-dichlorophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate 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 | C22H17Cl2NO4S |
| Molecular Weight | 462.35 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Isopropyl Standards
- 2-(4-(2-(1-Isopropyl-3-methyl-1H-1,2,4-triazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepin-9-yl)-1H-pyrazol-1-yl)-2-methylpropanoic acid (CAS 1282513-03-4)
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Recommended Standards
- Compound A (Perk Inhibitor Project) (CAS 719312-02-4)
- Methyl 3-iodo-6-methoxy-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-indazole-5-carboxylate (CAS 2635326-49-5)
- 3-{[(2,6-dichlorophenyl)methyl]sulfanyl}-N-[4-(trifluoromethyl)phenyl]thiophene-2-carboxamide (CAS 251096-92-1)
- Breviscapine (CAS 116122-36-2)
- 1,4-Bis(4-(2-methacryloxyethyl)phenylamino)anthraquinone (CAS 121888-69-5)
- tert-Butyl (2-acetylpyridin-3-yl)carbamate (CAS 1260677-33-5)
- Ethyl 5-bromo-2-(trifluoromethoxy)benzoate (CAS 773135-66-3)
- 3-(4-fluorophenyl)-3-methylcyclobutan-1-one (CAS 1803586-46-0)
- 5-(2-Amino-2-carboxyethyl)-2-hydroxybenzoic acid (CAS 3641-49-4)
- 1-(4-(Trifluoromethyl)phenyl)butan-1-one (CAS 37851-10-8)
- n1,n1,2,2-Tetramethyl-n3-(2-methylcyclopentyl)propane-1,3-diamine (CAS 1465971-92-9)
- 3-(2,2,2-Trifluoroacetyl)benzoic acid (CAS 213598-05-1)
- 1-(3-Aminopropyl)pyrimidine-2,4(1H,3H)-dione (CAS 54494-30-3)
- [D-Ser6]-Semaglutide (CAS CATO-C4X-2226287)
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