7-[(E)-2-(Thiophen-2-yl)ethenyl]-[1,2,4]triazolo[1,5-a]pyrimidine CAS 320416-50-0
| CAS No. | 320416-50-0 |
| Molecular Formula | C11H8N4S |
| Molecular Weight | 228.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 7-[(E)-2-(Thiophen-2-yl)ethenyl]-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 320416-50-0), a certified reference material (molecular formula C11H8N4S, MW 228.27 g/mol) for analytical method development and quality control.
The molecular framework of 7-[(E)-2-(Thiophen-2-yl)ethenyl]-[1,2,4]triazolo[1,5-a]pyrimidine (C11H8N4S) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
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 | C11H8N4S |
| Molecular Weight | 228.27 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related E Standards
- 4-(Thiophen-2-yl)phthalazin-1-ol (CAS 137382-45-7)
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- 3-(Thiophen-2-yl)quinoxalin-2-ol (CAS 64532-10-1)
- 4-(5-(Thiophen-2-yl)-1H-1,2,4-triazol-3-yl)pyridine (CAS 36646-25-0)
- 2-(3-(Thiophen-3-yl)propyl)malonic acid (CAS 20906-03-0)
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- (E)-4-(thiophen-2-yl)-2,3-dihydro-1H-benzo[b][1,4]diazepine 4-(2-Thienyl)-2,3-dihydro-1H-1,5-benzodiazepine 497178-55-9 (CAS 497178-55-9)
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Recommended Standards
- 6-phenylthieno[3,2-d]pyrimidin-4(3H)-one (CAS 209853-24-7)
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- 6-Phenylthieno[2,3-d]pyrimidin-4-ol (CAS 35970-78-6)
- 9H-Thioxanthen-9-one 10-oxide (CAS 7605-15-4)
- Urothion (CAS 17801-77-3)
- Methyl 1-(4-methoxyphenyl)-6-oxo-4-[3-(trifluoromethyl)phenoxy]-1,6-dihydropyridazine-3-carboxylate (CAS 338395-96-3)
- 3-Bromo-5-chloro-N,N-dimethyl-benzamide (CAS 1369869-37-3)
- Arotinolol Impurity 59 (CAS CATO-C4X-185459)
- N-(3,4-Dichlorophenyl)-4-isothiocyanatobenzenesulfonamide (CAS 956576-62-8)
- n-(2,5-Difluorobenzyl)-2-methylbutan-2-amine (CAS 1096856-12-0)
- N-((4-Oxo-3,4-dihydrophthalazin-1-yl)methyl)-4-propyl-1,2,3-thiadiazole-5-carboxamide (CAS 1207029-61-5)
- Silver(I) dibenzyl phosphate (CAS 50651-75-7)
- 5-Methyl-6-nitrobenzo[d][1,3]dioxole (CAS 32996-27-3)
- Semaglutide Impurity 146 (CAS 2645421-68-5)
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