2-(Thieno[2,3-b]quinolin-2-yl)-5-(m-tolyl)-1,3,4-oxadiazole CAS 478079-55-9
| CAS No. | 478079-55-9 |
| Molecular Formula | C20H13N3OS |
| Molecular Weight | 343.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(Thieno[2,3-b]quinolin-2-yl)-5-(m-tolyl)-1,3,4-oxadiazole (CAS 478079-55-9), molecular formula C20H13N3OS and molecular weight 343.40 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-(Thieno[2,3-b]quinolin-2-yl)-5-(m-tolyl)-1,3,4-oxadiazole (C20H13N3OS) is characterized by a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. 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.
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), 2-(Thieno[2,3-b]quinolin-2-yl)-5-(m-tolyl)-1,3,4-oxadiazole 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 | C20H13N3OS |
| Molecular Weight | 343.40 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Thieno Standards
- 2-{thieno[2,3-b]quinoline-2-carbonyl}-1,2,3,4-tetrahydroisoquinoline (CAS 439111-80-5)
- 1H-Thieno[3,4-d]imidazole-4-pentanamide, hexahydro-N-(5-hydroxypentyl)-2-oxo-, [3aS-(3aa,4,6aa)]- (9CI), 95% (CAS 181272-15-1)
- N'-(thieno[2,3-b]quinoline-2-carbonyl)methanesulfonohydrazide (CAS 692260-15-4)
- N-(Thieno[2,3-d]pyrimidin-4-yl)-2,3-dihydrobenzo[b][1,4]dioxine-2-carboxamide (CAS 899963-51-0)
- 4-Ethyl-5-{thieno[2,3-b]quinolin-2-yl}-4H-1,2,4-triazole-3-thiol (CAS 478260-35-4)
- 4-benzyl-1-{thieno[2,3-d]pyrimidin-4-yl}piperidine (CAS 744270-00-6)
- Thieno[2’,3’:4,5]thieno[3,2-b]thieno[2’,3’:4,5]thieno[2,3-d]thiophene (CAS 124796-79-8)
- 2-(Thieno[2,3-d]pyrimidin-4-yloxy)-1-(1,2,5-trimethyl-1H-pyrrol-3-yl)ethan-1-one (CAS 757224-44-5)
Recommended Standards
- 2-(Indolin-1-yl)-2-oxoethyl 2-(allylamino)thiazole-4-carboxylate (CAS 869355-52-2)
- 2-Ethoxy-5-((4-ethylpiperazin-1-yl)sulfonyl)nicotinic acid (CAS 247582-73-6)
- 2-(4-Methylphenyl)-5-{thieno[2,3-b]quinolin-2-yl}-1,3,4-oxadiazole (CAS 692260-13-2)
- 3-((3,4-Dimethylphenyl)sulfonyl)-6-methoxyquinolin-4(1H)-one (CAS 902506-41-6)
- 3-Pyridinamine, 4-(dimethylphosphinyl)-6-methoxy- (CAS 2886000-61-7)
- 3-Iodo-6,7-dimethoxy-2-methylquinolin-4(1H)-one (CAS 1330753-48-4)
- (R)-2-((tert-Butyldimethylsilyl)oxy)-1-(pyridin-2-yl)ethan-1-ol (CAS 263718-48-5)
- 8-Benzyl-4-butanoyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid (CAS 1326813-47-1)
- (1S,2S)-1,2-Bis(3,5-dimethylphenyl)-N1,N2-dimethylethane-1,2-diamine (CAS 220665-49-6)
- 2,3-dihydro-3-oxo-1H-indene-4-carbonitrile (CAS 215362-26-8)
- 2-(Dimethylamino)-5-fluorobenzonitrile (CAS 1343130-05-1)
- 3-Bromo-2,8-dichloroquinoline-4-carboxylic acid (CAS 1437432-61-5)
- 2-(4-Methylphenyl)-1H-imidazo[4,5-b]pyridin-1-ol (CAS 339009-92-6)
- Acetyl Tetrapeptide-11 (CAS 928006-88-6)
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