4-Ethylphenyl isocyanate 1-Ethyl-4-isocyanatobenzene p-Ethylphenyl isocyanate 23138-50-3 CAS 23138-50-3

Purity 97%+In StockPharmaceutical Standards
CAS No.23138-50-3
Molecular FormulaC9H9NO
Molecular Weight147.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Ethylphenyl isocyanate
1-Ethyl-4-isocyanatobenzene
p-Ethylphenyl isocyanate
23138-50-3 CAS 23138-50-3 chemical structure

Description

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

4-Ethylphenyl isocyanate 1-Ethyl-4-isocyanatobenzene p-Ethylphenyl isocyanate 23138-50-3 (CAS 23138-50-3), molecular formula C9H9NO and molecular weight 147.17 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C9H9NO, 4-Ethylphenyl isocyanate 1-Ethyl-4-isocyanatobenzene p-Ethylphenyl isocyanate 23138-50-3 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 147.17 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.

CATO manufactures 4-Ethylphenyl isocyanate 1-Ethyl-4-isocyanatobenzene p-Ethylphenyl isocyanate 23138-50-3 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 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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