2-(4-Chlorobenzyl)-4-(prop-2-yn-1-ylthio)quinazoline CAS 303149-29-3
| CAS No. | 303149-29-3 |
| Molecular Formula | C18H13ClN2S |
| Molecular Weight | 324.83 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-(4-Chlorobenzyl)-4-(prop-2-yn-1-ylthio)quinazoline (CAS 303149-29-3) is a high-purity analytical reference standard with the molecular formula C18H13ClN2S and a molecular weight of 324.83 g/mol.
2-(4-Chlorobenzyl)-4-(prop-2-yn-1-ylthio)quinazoline (C18H13ClN2S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; 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.
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 | C18H13ClN2S |
| Molecular Weight | 324.83 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chlorobenzyl Standards
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Recommended Standards
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- 6-Methoxychroman-4-carbaldehyde (CAS 105630-29-3)
- n,n'-(1,4-Phenylene)dicyclopropanecarboxamide (CAS 14371-95-0)
- 2-methylindole-3-acetic acid (CAS 1912-43-2)
- Methyl 2-chloro-4-cyclopropoxybenzoate (CAS 1394988-15-8)
- 2-[N-(2,4-Dichloro-5-methoxyphenyl)4-methylbenzenesulfonamido]-N-phenylacetamide (CAS 338961-23-2)
- (4-Pentylphenyl)methanamine (CAS 105254-44-2)
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- Para Red D6 (naphthyl D6) (CAS 1014689-16-7)
- D-Asp9-Tirzepatide (CAS CATO-CPTD788923)
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