7-Nitrobenz[a]anthracene CAS 20268-51-3

Purity >85%In StockPharmaceutical Standards
CAS No.20268-51-3
Molecular FormulaC18H11NO2
Molecular Weight273.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-Nitrobenz[a]anthracene CAS 20268-51-3 chemical structure

Description

Based on its molecular formula C18H11NO2, 7-Nitrobenz[a]anthracene contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 273.29 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).

7-Nitrobenz[a]anthracene (CAS 20268-51-3), molecular formula C18H11NO2 and molecular weight 273.29 g/mol, is a CATO reference standard with documented purity and traceability.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

CATO manufactures 7-Nitrobenz[a]anthracene 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 FormulaC18H11NO2
Molecular Weight273.29 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>85%
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)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Nitrogen Atoms1

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