2-Chloro-5-nitrobenzo[d]oxazole CAS 54120-91-1

Purity 97%+In StockPharmaceutical Standards
CAS No.54120-91-1
Molecular FormulaC7H3ClN2O3
Molecular Weight198.56 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Chloro-5-nitrobenzo[d]oxazole CAS 54120-91-1 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-Chloro-5-nitrobenzo[d]oxazole.

CATO supplies 2-Chloro-5-nitrobenzo[d]oxazole (CAS 54120-91-1), a certified reference material (molecular formula C7H3ClN2O3, MW 198.56 g/mol) for analytical method development and quality control.

Based on its molecular formula C7H3ClN2O3, 2-Chloro-5-nitrobenzo[d]oxazole contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 198.56 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 2-Chloro-5-nitrobenzo[d]oxazole 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 FormulaC7H3ClN2O3
Molecular Weight198.56 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1972
Halogen ContentCl-containing
Nitrogen Atoms2

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