6,8-Dichloro-[1,3]dioxolo[4,5-g]quinazoline CAS 20197-55-1

Purity 97%+In StockPharmaceutical Standards
CAS No.20197-55-1
Molecular FormulaC9H4Cl2N2O2
Molecular Weight243.05 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6,8-Dichloro-[1,3]dioxolo[4,5-g]quinazoline CAS 20197-55-1 chemical structure

Description

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.

CATO supplies 6,8-Dichloro-[1,3]dioxolo[4,5-g]quinazoline (CAS 20197-55-1), a certified reference material (molecular formula C9H4Cl2N2O2, MW 243.05 g/mol) for analytical method development and quality control.

Structurally, 6,8-Dichloro-[1,3]dioxolo[4,5-g]quinazoline (C9H4Cl2N2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 243.05 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

As a certified reference material (CRM), 6,8-Dichloro-[1,3]dioxolo[4,5-g]quinazoline 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 FormulaC9H4Cl2N2O2
Molecular Weight243.05 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Halogen ContentCl-containing
Nitrogen Atoms2

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