9-Cyclopropyl-6,7-difluoro-8-methoxyisothiazolo[5,4-b]quinoline-3,4(2H,9H)-dione CAS 922491-07-4
| CAS No. | 922491-07-4 |
| Molecular Formula | C14H10F2N2O3S |
| Molecular Weight | 324.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 9-Cyclopropyl-6,7-difluoro-8-methoxyisothiazolo[5,4-b]quinoline-3,4(2H,9H)-dione 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.
CATO supplies 9-Cyclopropyl-6,7-difluoro-8-methoxyisothiazolo[5,4-b]quinoline-3,4(2H,9H)-dione (CAS 922491-07-4), a certified reference material (molecular formula C14H10F2N2O3S, MW 324.30 g/mol) for analytical method development and quality control.
Structurally, 9-Cyclopropyl-6,7-difluoro-8-methoxyisothiazolo[5,4-b]quinoline-3,4(2H,9H)-dione (C14H10F2N2O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 324.30 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C14H10F2N2O3S |
| Molecular Weight | 324.30 g/mol |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Cyclopropyl Standards
- Methyl 6-cyclopropyl-3-(4-methoxyphenyl)isoxazolo[5,4-b]pyridine-4-carboxylate (CAS 1018125-63-7)
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- 4-Cyclopropyl-n-[(4-fluorophenyl)methyl]-5-(3-methyl-1,2-oxazol-5-yl)pyrimidin-2-amine (CAS 1381549-86-5)
- 1-Cyclopropyl-3-(2-fluorophenyl)-1-(imidazo[1,2-a]pyridin-3-ylmethyl)urea (CAS 1448070-31-2)
- N-Cyclopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3-sulfonamide (CAS 1416337-90-0)
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Recommended Standards
- 6-Methyl-5-(morpholin-4-yl)-3-[3-(trifluoromethyl)phenyl]-1,2,4-triazine (CAS 339103-67-2)
- N,N-dimethyl-2-oxo-1-(3-(trifluoromethyl)benzyl)-1,2-dihydropyridine-3-carboxamide (CAS 338754-80-6)
- 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazole (CAS 903550-12-9)
- N,N-Dimethyl-2-oxo-1-{[4-(trifluoromethyl)phenyl]methyl}-1,2-dihydropyridine-3-carboxamide (CAS 338781-59-2)
- (4-Bromo-2-(methylamino)phenyl)dimethylphosphine oxide (CAS 2763329-68-4)
- N-(1-Hydrazinyl-3-methyl-1-oxobutan-2-yl)adamantane-1-carboxamide (CAS 1396979-83-1)
- 5,6-Dihydro-8H-imidazo[2,1-c][1,4]oxazin-3-ylamine (CAS 1525606-78-3)
- (3-Chlorophenyl)(3,5-dimethylphenyl)methanol (CAS 844683-54-1)
- 4-Chloro-6-methoxy-N1-methylbenzene-1,2-diamine (CAS 859877-51-3)
- 7-Benzyl-2-methyl-3H-pyrrolo[3,2-d]pyrimidin-4(5H)-one (CAS 1392817-32-1)
- 3-Bromo-7-methylimidazo[1,2-a]pyrimidine (CAS 375857-62-8)
- 1-(4-(4-Amino-6-(4-methoxyphenyl)furo[2,3-d]pyrimidin-5-yl)phenyl)-3-(2-fluoro-5-(trifluoromethyl)phenyl)urea (CAS 501693-25-0)
- Thiazole Impurity 3 (CAS 19960-72-6)
- 81988-89-8 UH11FDQ454 Ramoplanin A(sub 3) Ramoplanin A3 (S)-2-(3-Chloro-4-hydroxyphenyl)-N-(N(sup 2)-((2Z,4Z)-8-methyl-2,4-nonadienoyl)-(S)-asparaginyl-(2S,3S)-3-hydroxyasparaginyl-(R)-2-(p-hydroxyphenyl)glycyl-(R)-ornithyl-(2R,3R)-allothreonyl-2-(p-hydroxyphenyl)glycyl-2-(p-hydroxyphenyl)glycyl-(2S,3S)-allothreonyl-(S)-phenylalanyl-(R)-ornithyl-(S)-2-(p-((2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranosyl)oxy)phenyl)glycyl-(2R,3R)-allothreonyl-(S)-2-(p-hydroxyphenyl)glycylglycyl-(S)-leucyl-(R)-alanyl)glycine psi1-lactone Ramoplanin A 1 (peptide moiety), 1-(N(sup 2)-methyl-1-oxo-2,4-nonadienyl)-L-asparagine)-11-(L-2-(4-((2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranosyl)oxy)phenyl)glycine)-, (Z,Z)- UNII-UH11FDQ454 (CAS 81988-89-8)
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