4-(3'-Pyridyl)benzoic acid 4-(3-pyridyl)benzoic acid 4-(pyridin-3-yl)benzoic acid 4-pyridin-3-yl-benzoic acid 4-pyridin-3-ylbenzoic acid 4-(3-pyridinyl)benzoic acid 4-pyrid-3-ylbenzoic acid 4385-75-5 CAS 4385-75-5

Purity 97%+In StockPharmaceutical Standards
CAS No.4385-75-5
Molecular FormulaC12H9NO2
Molecular Weight199.21 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(3'-Pyridyl)benzoic acid 4-(3-pyridyl)benzoic acid 4-(pyridin-3-yl)benzoic acid 4-pyridin-3-yl-benzoic acid 4-pyridin-3-ylbenzoic acid 4-(3-pyridinyl)benzoic acid 4-pyrid-3-ylbenzoic acid 4385-75-5 CAS 4385-75-5 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.

4-(3'-Pyridyl)benzoic acid 4-(3-pyridyl)benzoic acid 4-(pyridin-3-yl)benzoic acid 4-pyridin-3-yl-benzoic acid 4-pyridin-3-ylbenzoic acid 4-(3-pyridinyl)benzoic acid 4-pyrid-3-ylbenzoic acid 4385-75-5 (CAS 4385-75-5), molecular formula C12H9NO2 and molecular weight 199.21 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C12H9NO2, 4-(3'-Pyridyl)benzoic acid 4-(3-pyridyl)benzoic acid 4-(pyridin-3-yl)benzoic acid 4-pyridin-3-yl-benzoic acid 4-pyridin-3-ylbenzoic acid 4-(3-pyridinyl)benzoic acid 4-pyrid-3-ylbenzoic acid 4385-75-5 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 199.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

As a certified reference material (CRM), 4-(3'-Pyridyl)benzoic acid 4-(3-pyridyl)benzoic acid 4-(pyridin-3-yl)benzoic acid 4-pyridin-3-yl-benzoic acid 4-pyridin-3-ylbenzoic acid 4-(3-pyridinyl)benzoic acid 4-pyrid-3-ylbenzoic acid 4385-75-5 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 FormulaC12H9NO2
Molecular Weight199.21 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Nitrogen Atoms1

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