28479-22-3 Benzene, 2-chloro-4-isocyanato-1-methyl- 3-Chloro-p-tolyl isocyanate 3-Chloro-4-methylphenyl isocyanate EINECS 249-050-7 EC 249-050-7 3-Chloro-4-methylphenyl isocyanate [UN2236] [Poison] UN2236 CAS 28479-22-3

Purity 97%+In StockPharmaceutical Standards
CAS No.28479-22-3
Molecular FormulaC8H12ClNO
Molecular Weight173.64 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

28479-22-3 Benzene, 2-chloro-4-isocyanato-1-methyl- 3-Chloro-p-tolyl isocyanate 3-Chloro-4-methylphenyl isocyanate EINECS 249-050-7 EC 249-050-7 3-Chloro-4-methylphenyl isocyanate [UN2236] [Poison] UN2236 CAS 28479-22-3 chemical structure

Description

CATO supplies 28479-22-3 Benzene, 2-chloro-4-isocyanato-1-methyl- 3-Chloro-p-tolyl isocyanate 3-Chloro-4-methylphenyl isocyanate EINECS 249-050-7 EC 249-050-7 3-Chloro-4-methylphenyl isocyanate [UN2236] [Poison] UN2236 (CAS 28479-22-3), a certified reference material (molecular formula C8H12ClNO, MW 173.64 g/mol) for analytical method development and quality control.

28479-22-3 Benzene, 2-chloro-4-isocyanato-1-methyl- 3-Chloro-p-tolyl isocyanate 3-Chloro-4-methylphenyl isocyanate EINECS 249-050-7 EC 249-050-7 3-Chloro-4-methylphenyl isocyanate [UN2236] [Poison] UN2236 (C8H12ClNO) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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

As a certified reference material (CRM), 28479-22-3 Benzene, 2-chloro-4-isocyanato-1-methyl- 3-Chloro-p-tolyl isocyanate 3-Chloro-4-methylphenyl isocyanate EINECS 249-050-7 EC 249-050-7 3-Chloro-4-methylphenyl isocyanate [UN2236] [Poison] UN2236 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 FormulaC8H12ClNO
Molecular Weight173.64 g/mol
AppearanceWhite to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1965
Halogen ContentCl-containing
Nitrogen Atoms1

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