3-Ethylphenyl isocyanate 1-ethyl-3-isocyanato-benzene 1-ethyl-3-isocyanatobenzene 23138-58-1 CAS 23138-58-1

Purity 97%+In StockPharmaceutical Standards
CAS No.23138-58-1
Molecular FormulaC9H9NO
Molecular Weight147.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Ethylphenyl isocyanate
1-ethyl-3-isocyanato-benzene
1-ethyl-3-isocyanatobenzene
23138-58-1 CAS 23138-58-1 chemical structure

Description

3-Ethylphenyl isocyanate 1-ethyl-3-isocyanato-benzene 1-ethyl-3-isocyanatobenzene 23138-58-1 (CAS 23138-58-1) is a high-purity analytical reference standard with the molecular formula C9H9NO and a molecular weight of 147.17 g/mol.

The molecular framework of 3-Ethylphenyl isocyanate 1-ethyl-3-isocyanato-benzene 1-ethyl-3-isocyanatobenzene 23138-58-1 (C9H9NO) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.

As a certified reference material (CRM), 3-Ethylphenyl isocyanate 1-ethyl-3-isocyanato-benzene 1-ethyl-3-isocyanatobenzene 23138-58-1 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 FormulaC9H9NO
Molecular Weight147.17 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1963
Nitrogen Atoms1

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