4-Propyl-3,4-dihydroquinoxalin-2(1H)-one CAS 99840-78-5
| CAS No. | 99840-78-5 |
| Molecular Formula | C11H14N2O |
| Molecular Weight | 190.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Propyl-3,4-dihydroquinoxalin-2(1H)-one (CAS 99840-78-5), molecular formula C11H14N2O and molecular weight 190.24 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Propyl-3,4-dihydroquinoxalin-2(1H)-one (C11H14N2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 190.24 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C11H14N2O |
| Molecular Weight | 190.24 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 2 |
Related Propyl Standards
- 1-(4-Methyl-3,4-dihydroquinoxalin-1(2H)-yl)ethanone (CAS 669695-07-2)
- 1-Propyl-3,4-dihydroquinoxalin-2(1H)-one (CAS 66366-87-8)
- 7-Acetyl-3,4-dihydroquinoxalin-2(1H)-one (CAS 1255147-27-3)
- 2-(3-Oxo-3,4-dihydroquinoxalin-1(2H)-yl)acetonitrile (CAS 1042812-28-1)
- 2-(3-Oxo-3,4-dihydroquinoxalin-2(1H)-ylidene)acetonitrile (CAS 67557-67-9)
- 1-(1,2-Dihydroquinoxalin-2-yl)ethanol (CAS 111289-53-3)
- 1-(3,4-Dihydroquinoxalin-1(2H)-yl)ethan-1-one (CAS 6639-92-5)
- 1-Ethyl-3,4-dihydroquinoxalin-2(1H)-one (CAS 66366-88-9)
Recommended Standards
- 4-Piperazin-1-yl-benzaldehyde (CAS 27913-98-0)
- 4-Thioxo-1,4-dihydropyridine-3-sulfonamide (CAS 73742-63-9)
- 4-Phenyltetrahydro-2H-pyran-4-carbaldehyde (CAS 66109-88-4)
- 5-(3-Methoxyphenyl)pent-4-yn-1-ol (CAS 443640-60-6)
- 2,2-Dimethyl-1-(1,3-thiazol-2-yl)propan-1-amine (CAS 1247122-26-4)
- (E)-4-oxo-4-(4-(4-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)but-2-enoic acid (CAS 883030-85-1)
- Hexyl β-D-glucopyranoside (CAS 59080-45-4)
- (5-Cyclopropyl-4-methyl-4h-1,2,4-triazol-3-yl)methanamine dihydrochloride (CAS 1432681-51-0)
- (3-Bromo-5-fluorophenoxy)(tert-butyl)dimethylsilane (CAS 1310697-89-2)
- 5-Bromo-2-methyl-1-benzothiophene (CAS 7312-07-4)
- 6-Fluoro-1-oxo-3,4-dihydro-1h-2-benzopyran-3-carboxylic acid (CAS 1312135-86-6)
- 1-Aminospiro[2.3]Hexan-5-ol hydrochloride (CAS 2126177-25-9)
- Labetalol Impurity 25 (CAS CATO-C4X-246625)
- Semaglutide impurity 196 (CAS CATO-C4X-2226196)
Why CATO?
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