7-Methoxy-4-oxo-1,4-dihydroquinoline-3-carbonitrile CAS 71083-64-2
| CAS No. | 71083-64-2 |
| Molecular Formula | C11H8N2O2 |
| Molecular Weight | 200.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7-Methoxy-4-oxo-1,4-dihydroquinoline-3-carbonitrile (CAS 71083-64-2), molecular formula C11H8N2O2 and molecular weight 200.19 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 7-Methoxy-4-oxo-1,4-dihydroquinoline-3-carbonitrile is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 200.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), 7-Methoxy-4-oxo-1,4-dihydroquinoline-3-carbonitrile 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 | C11H8N2O2 |
| Molecular Weight | 200.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 2 |
Related Methoxy Standards
- 6-Methoxy-2-oxo-1,2-dihydroquinoline-3-carbonitrile (CAS 123990-79-4)
- 5-Methoxy-1-(2-methoxyethyl)-1H-pyrazole-3-carboxylic acid (CAS 1263211-61-5)
- 6-Methoxy-2-oxo-1,2-dihydroquinoline-5-carbonitrile (CAS 1420790-69-7)
- 5-Methoxy-2-phenyloxazole-4-carbonitrile (CAS 32418-04-5)
- 6-Methoxy-4-oxo-1,4-dihydroquinoline-3-carbonitrile (CAS 423180-88-5)
- 7-Methoxy-1-oxo-2h-isoquinoline-6-carbonitrile (CAS 2350323-59-8)
- 7-Methoxy-4-oxo-1,4-dihydroquinoline-6-carbonitrile (CAS 417721-15-4)
- 8-Methoxy-4-oxo-1,4-dihydroquinoline-3-carbonitrile (CAS 71083-71-1)
Recommended Standards
- 7-Fluoro-4H-benzo[e][1,2,4]thiadiazine 1,1-dioxide (CAS 37162-45-1)
- 8-Acetylquinoxaline-5-carbaldehyde (CAS 89334-33-8)
- 7-(1,1-Difluoroethyl)-6,7-dihydropyrazolo[1,5-a]pyridin-4(5H)-one (CAS 2489784-04-3)
- 8-Formyl-1-naphthoic acid (CAS 5811-87-0)
- 4-(Azetidin-1-yl)piperidine (CAS 686298-29-3)
- N-ethyl-5-methyl-1H-pyrazole-4-carboxamide (CAS 952675-25-1)
- Tert-butyl 5-(aminomethyl)-2-azabicyclo[3.1.1]Heptane-2-carboxylate (CAS 2227205-85-6)
- N-(2-fluorophenyl)-2-(5-(morpholinosulfonyl)-2-oxopyridin-1(2H)-yl)acetamide (CAS 1251690-72-8)
- 4-(4-Bromophenyl)dibenzothiophene (CAS 530402-77-8)
- 2-(Trifluoromethyl)piperazine acetate (CAS 313337-37-0)
- 4-Chloro-5-((pyridin-3-ylmethyl)amino)pyridazin-3(2h)-one (CAS 130751-19-8)
- Tert-butyl 2-phenyl-5,8-dihydropyrido[3,4-d]pyrimidine-7(6H)-carboxylate (CAS 1279816-05-5)
- 2-(Aminomethyl)-3-bromo-5-(difluoromethyl)-6-methoxypyridine (CAS 1805418-64-7)
- Uremic Pentapeptide (CAS 71494-20-7)
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