Methyl 6-(3-(quinolin-4-yl)-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazol-2-yl)picolinate CAS 476475-27-1

Purity 97%+In StockPharmaceutical Standards
CAS No.476475-27-1
Molecular FormulaC22H18N4O2
Molecular Weight370.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl 6-(3-(quinolin-4-yl)-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazol-2-yl)picolinate CAS 476475-27-1 chemical structure

Description

Methyl 6-(3-(quinolin-4-yl)-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazol-2-yl)picolinate (CAS 476475-27-1), molecular formula C22H18N4O2 and molecular weight 370.40 g/mol, is a CATO reference standard with documented purity and traceability.

Methyl 6-(3-(quinolin-4-yl)-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazol-2-yl)picolinate (C22H18N4O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).

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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC22H18N4O2
Molecular Weight370.40 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
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
Degree of Unsaturation (DBE)16.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms4

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