4-Chloro-6-(trifluoromethyl)-5,6,7,8-tetrahydroquinazoline CAS 1256784-33-4

Purity 97%+In StockPharmaceutical Standards
CAS No.1256784-33-4
Molecular FormulaC9H8ClF3N2
Molecular Weight236.62 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Chloro-6-(trifluoromethyl)-5,6,7,8-tetrahydroquinazoline CAS 1256784-33-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 236.62 g/mol gives 4-Chloro-6-(trifluoromethyl)-5,6,7,8-tetrahydroquinazoline distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-Chloro-6-(trifluoromethyl)-5,6,7,8-tetrahydroquinazoline (CAS 1256784-33-4), molecular formula C9H8ClF3N2 and molecular weight 236.62 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4-Chloro-6-(trifluoromethyl)-5,6,7,8-tetrahydroquinazoline (C9H8ClF3N2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 236.62 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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), 4-Chloro-6-(trifluoromethyl)-5,6,7,8-tetrahydroquinazoline 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 FormulaC9H8ClF3N2
Molecular Weight236.62 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light, 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
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Halogen ContentF/Cl-containing
Nitrogen Atoms2

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