6,7-Dichloro-2-(trifluoromethyl)-3H-imidazo[4,5-b]pyridine CAS 19918-41-3

Purity 97%+In StockPharmaceutical Standards
CAS No.19918-41-3
Molecular FormulaC7H2Cl2F3N3
Molecular Weight256.01 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6,7-Dichloro-2-(trifluoromethyl)-3H-imidazo[4,5-b]pyridine CAS 19918-41-3 chemical structure

Description

The occurrence of 6,7-Dichloro-2-(trifluoromethyl)-3H-imidazo[4,5-b]pyridine is closely related to a nitrile group, fluorine/chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

6,7-Dichloro-2-(trifluoromethyl)-3H-imidazo[4,5-b]pyridine (CAS 19918-41-3) is a high-purity analytical reference standard with the molecular formula C7H2Cl2F3N3 and a molecular weight of 256.01 g/mol.

Structurally, 6,7-Dichloro-2-(trifluoromethyl)-3H-imidazo[4,5-b]pyridine (C7H2Cl2F3N3) contains a nitrile group, fluorine/chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 256.01 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), 6,7-Dichloro-2-(trifluoromethyl)-3H-imidazo[4,5-b]pyridine 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 FormulaC7H2Cl2F3N3
Molecular Weight256.01 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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Halogen ContentF/Cl-containing
Nitrogen Atoms3

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