7-Chloro-9-Ethyl-6-fluoroisoxazolo[3,4-b]quinoline-3,4(1H,9H)-dione CAS 1082203-79-9

Purity 97%+In StockPharmaceutical Standards
CAS No.1082203-79-9
Molecular FormulaC12H8ClFN2O3
Molecular Weight282.65 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-Chloro-9-Ethyl-6-fluoroisoxazolo[3,4-b]quinoline-3,4(1H,9H)-dione CAS 1082203-79-9 chemical structure

Description

CATO manufactures 7-Chloro-9-Ethyl-6-fluoroisoxazolo[3,4-b]quinoline-3,4(1H,9H)-dione under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

7-Chloro-9-Ethyl-6-fluoroisoxazolo[3,4-b]quinoline-3,4(1H,9H)-dione (CAS 1082203-79-9), molecular formula C12H8ClFN2O3 and molecular weight 282.65 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C12H8ClFN2O3, 7-Chloro-9-Ethyl-6-fluoroisoxazolo[3,4-b]quinoline-3,4(1H,9H)-dione contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 282.65 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC12H8ClFN2O3
Molecular Weight282.65 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay 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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Halogen ContentF/Cl-containing
Nitrogen Atoms2

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