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4,4′-MDI

analytical standard

Synonym: 4,4′-MDI, 4,4′-Methylenebis(phenyl isocyanate), Bis(4-isocyanatophenyl)methane

  • CAS Number 101-68-8

  • Linear Formula CH2(C6H4NCO)2

  • Molecular Weight 250.25

  •  Beilstein/REAXYS Number 797662

  •  EC Number 202-966-0

  •  MDL number MFCD00036131

  •  PubChem Substance ID 329754540

  •  NACRES NA.24

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Properties

Related Categories Additional Standards, Alpha Sort, Analytical Standards, Analytical/Chromatography, Chinese Food Contact Materials Regulation GB 9685 2016,
Quality Level   100
grade   analytical standard
form   neat
shelf life   limited shelf life, expiry date on the label
application(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.)
Featured Industry   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.

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 & Documentation

Safety Information

Symbol 
Signal word 
Danger
Target organs 
Respiratory system
Personal Protective Equipment 
RIDADR 
UN 3335
WGK Germany 
WGK 1
RTECS 
NQ9350000
Flash Point(F) 
235.4 °F - closed cup
Flash Point(C) 
113 °C - closed cup
Protocols & Articles
Peer-Reviewed Papers
15

References

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