4-(Phenylazo)diphenylamine CAS 101-75-7

Purity 97%+In StockPharmaceutical Standards
CAS No.101-75-7
Molecular FormulaC18H33N3
Molecular Weight291.47 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(Phenylazo)diphenylamine CAS 101-75-7 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-(Phenylazo)diphenylamine (CAS 101-75-7) is a high-purity analytical reference standard with the molecular formula C18H33N3 and a molecular weight of 291.47 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, 4-(Phenylazo)diphenylamine 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

As a certified reference material (CRM), 4-(Phenylazo)diphenylamine 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 FormulaC18H33N3
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 DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Nitrogen Atoms3

Related Phenylazo Standards

Recommended Standards

Why CATO?