33428

4,4′-MDI

analytical standard

• Synonym(s): 4,4′-Methylenebis(phenyl isocyanate), 4,4′-Diphenylmethane diisocyanate, 4,4′-Methylenediphenyl diisocyanate, 4,4′-MDI, Bis(4-isocyanatophenyl)methane
• Linear Formula: CH₂(C₆H₄NCO)₂
• CAS Number: 101-68-8
• Molecular Weight: 250.25
• Beilstein: 797662
• EC Number: 202-966-0
• MDL number: MFCD00036131
• UNSPSC Code: 41116107
• PubChem Substance ID: 329754540
• NACRES: NA.24

Properties

• grade: analytical standard
• Quality Level: 100
• shelf life: limited shelf life, expiry date on the label
• technique(s): HPLC: suitable; gas chromatography (GC): suitable
• bp: 200 °C/5 mmHg (lit.)
• mp: 42-45 °C (lit.)
• density: 1.18 g/mL at 25 °C (lit.)
• application(s): environmental
• format: neat
• storage temp.: −20°C
• SMILES string: O=C=Nc1ccc(Cc2ccc(cc2)N=C=O)cc1
• InChI: 1S/C15H10N2O2/c18-10-16-14-5-1-12(2-6-14)9-13-3-7-15(8-4-13)17-11-19/h1-8H,9H2
• InChI key: UPMLOUAZCHDJJD-UHFFFAOYSA-N

Description

General description

4,4′-MDI can be extensively used to make urethane elastomers and urethane coatings.

This substance is listed on the positive list of the EU regulation 10/2011 for plastics intended to come into contact with food.

Application

4,4′-MDI may be used as an analytical standard for the determination of the analyte in wastewater and air samples, and human biological samples by various chromatographic techniques.

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Safety Information

• Pictograms: GHS07,GHS08
• Signal Word: Danger
• Hazard Statements: H315 - H317 - H319 - H332 - H334 - H335 - H351 - H373
• Precautionary Statements: P202 - P260 - P280 - P302 + P352 - P305 + P351 + P338 - P308 + P313
• Hazard Classifications: Acute Tox. 4 Inhalation - Carc. 2 - Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT RE 2 Inhalation - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): 411.8 °F - closed cup
• Flash Point(C): 211 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves