4-(Diphenylamino)benzaldehyde 4181-05-9 Benzaldehyde, 4-(diphenylamino)- NSC-156558 NSC156558 CAS 4181-05-9

Purity 97%+In StockPharmaceutical Standards
CAS No.4181-05-9
Molecular FormulaC19H33NO
Molecular Weight291.47 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(Diphenylamino)benzaldehyde
4181-05-9
Benzaldehyde, 4-(diphenylamino)-
NSC-156558
NSC156558 CAS 4181-05-9 chemical structure

Description

Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, 4-(Diphenylamino)benzaldehyde 4181-05-9 Benzaldehyde, 4-(diphenylamino)- NSC-156558 NSC156558 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 291.47 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

4-(Diphenylamino)benzaldehyde 4181-05-9 Benzaldehyde, 4-(diphenylamino)- NSC-156558 NSC156558 (CAS 4181-05-9), molecular formula C19H33NO and molecular weight 291.47 g/mol, is a CATO reference standard with documented purity and traceability.

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.

CATO manufactures 4-(Diphenylamino)benzaldehyde 4181-05-9 Benzaldehyde, 4-(diphenylamino)- NSC-156558 NSC156558 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC19H33NO
Molecular Weight291.47 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Nitrogen Atoms1

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