.alpha.-Pyridil 2,2'-Pyridil 2,2'-Pyridyl 492-73-9 Bipicolinoyl Bis(2-pyridyl)ethanedione Di-2-pyridylglyoxal Ethanedione, di-2-pyridinyl- Glyoxal, di-2-pyridyl- NSC-16545 NSC16545 CAS 492-73-9

Purity 97%+In StockPharmaceutical Standards
CAS No.492-73-9
Molecular FormulaC12H20N2O2
Molecular Weight224.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

.alpha.-Pyridil 2,2'-Pyridil 2,2'-Pyridyl 492-73-9 Bipicolinoyl Bis(2-pyridyl)ethanedione Di-2-pyridylglyoxal Ethanedione, di-2-pyridinyl- Glyoxal, di-2-pyridyl- NSC-16545 NSC16545 CAS 492-73-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 224.30 g/mol gives .alpha.-Pyridil 2,2'-Pyridil 2,2'-Pyridyl 492-73-9 Bipicolinoyl Bis(2-pyridyl)ethanedione Di-2-pyridylglyoxal Ethanedione, di-2-pyridinyl- Glyoxal, di-2-pyridyl- NSC-16545 NSC16545 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

.alpha.-Pyridil 2,2'-Pyridil 2,2'-Pyridyl 492-73-9 Bipicolinoyl Bis(2-pyridyl)ethanedione Di-2-pyridylglyoxal Ethanedione, di-2-pyridinyl- Glyoxal, di-2-pyridyl- NSC-16545 NSC16545 (CAS 492-73-9) is a high-purity analytical reference standard with the molecular formula C12H20N2O2 and a molecular weight of 224.30 g/mol.

Based on its molecular formula C12H20N2O2, .alpha.-Pyridil 2,2'-Pyridil 2,2'-Pyridyl 492-73-9 Bipicolinoyl Bis(2-pyridyl)ethanedione Di-2-pyridylglyoxal Ethanedione, di-2-pyridinyl- Glyoxal, di-2-pyridyl- NSC-16545 NSC16545 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 224.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC12H20N2O2
Molecular Weight224.30 g/mol
AppearanceOff-white to pale 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)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Nitrogen Atoms2

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