1-Ethynyl-5-nitronaphthalene CAS 476181-85-8

Purity 97%+In StockPharmaceutical Standards
CAS No.476181-85-8
Molecular FormulaC12H7NO2
Molecular Weight197.19 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Ethynyl-5-nitronaphthalene CAS 476181-85-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 197.19 g/mol gives 1-Ethynyl-5-nitronaphthalene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 1-Ethynyl-5-nitronaphthalene (CAS 476181-85-8), a certified reference material (molecular formula C12H7NO2, MW 197.19 g/mol) for analytical method development and quality control.

Structurally, 1-Ethynyl-5-nitronaphthalene (C12H7NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 197.19 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 1-Ethynyl-5-nitronaphthalene 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 FormulaC12H7NO2
Molecular Weight197.19 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)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms1

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