2-Ethyl-8,9-dimethoxy-5-((pyridin-2-ylmethyl)thio)-[1,2,4]triazolo[1,5-c]quinazoline hydrochloride CAS 1221715-20-3
| CAS No. | 1221715-20-3 |
| Molecular Formula | C19H19N5O2S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Ethyl-8,9-dimethoxy-5-((pyridin-2-ylmethyl)thio)-[1,2,4]triazolo[1,5-c]quinazoline hydrochloride is closely related to a steroid 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.
CATO supplies 2-Ethyl-8,9-dimethoxy-5-((pyridin-2-ylmethyl)thio)-[1,2,4]triazolo[1,5-c]quinazoline hydrochloride (CAS 1221715-20-3), a certified reference material (molecular formula C19H19N5O2SHCl, MW 417.91 g/mol) for analytical method development and quality control.
2-Ethyl-8,9-dimethoxy-5-((pyridin-2-ylmethyl)thio)-[1,2,4]triazolo[1,5-c]quinazoline hydrochloride (C19H19N5O2SHCl) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine 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. 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 | C19H19N5O2S HCl |
| Molecular Weight | 417.91 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- 6,7-Dimethoxy-1,4-phthalazinediol (CAS 10001-35-1)
- 6,7-Dimethoxy-4-methylphthalazin-1(2H)-one (CAS 10001-36-2)
- 3-Benzyl-9,9-dimethoxy-3-azabicyclo[3.3.1]nonane (CAS 1000931-10-1)
- 4,7-Dimethoxy-1-methylquinolin-2(1H)-one (CAS 100192-50-5)
- 2-(4,5-Dimethoxy-2-nitrophenyl)succinic acid (CAS 100193-44-0)
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- 6,7-Dimethoxy-1H-indene-3-carbonitrile (CAS 100449-12-5)
- 5-(5,6-Dimethoxy-1H-benzo[d]imidazol-1-yl)-3-((2-(methylsulfonyl)benzyl)oxy)thiophene-2-carboxylic acid (CAS 1007698-63-6)
Recommended Standards
- 1-Amino-3-methoxy-3-methylbutan-2-ol (CAS 885032-36-0)
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- Methyl 4-chloro-2,6-dimethylbenzoate (CAS 352278-81-0)
- 1-Nitromethyl-1-cyclohexanol (CAS 3164-73-6)
- 2-((Cyclohexylamino)methyl)-1,1,1,3,3,3-hexafluoropropan-2-ol (CAS 1980044-21-0)
- 4-(((5-(hydroxymethyl)furan-2-yl)methyl)amino)pyrimidin-2(1H)-one (CAS 1333466-51-5)
- 4-Iodo-N-(o-tolyl)benzamide (CAS 461040-30-2)
- D-Asp9-Tirzepatide (CAS CATO-CPTD788923)
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