4,4'-Diphenylmethane diisocyanateC15H10N2O2

CAS-No.:
101-68-8
EC-No.:
202-966-0
Hazard signs
GHS07
GHS08

*Source: GESTIS Substance Database, https://gestis-database.dguv.de

Occupational exposure limit
ACGIH (US)
  • TWA (mg/m3 (inh)) 0,005
  • TWA (mg/m3) 0,051
NIOSH (REL) (US)
  • TWA (ppm) 0,005
  • TWA (mg/m3) 0,05
  • STEL (ppm) C 0,02 (10min)
  • STEL (mg/m3) C 0,2 (10min)
NIOSH (US)
  • IDLH (mg/m3) 75
OSHA (PEL) (US)
  • STEL (ppm) C 0,02
  • STEL (mg/m3) C 0,2
  • H: 315
    Causes skin irritation
  • H: 317
    May cause an allergic skin reaction
  • H: 319
    Causes serious eye irritation
  • H: 332
    Harmful if inhaled
  • H: 334
    May cause allergy or asthma symptoms or breathing difficulties if inhaled
  • H: 335
    May cause respiratory irritation
  • H: 351
    Suspected of causing cancer.
  • H: 373
    May cause damage to organs (state all organs affected, if known) through prolonged or repeated exposure (state route of exposure if it is conclusively
    proven that no other routes of exposure cause the hazard)

*Source: GESTIS Substance Database, https://gestis-database.dguv.de

  • Melting point:
    104 °F
  • Density (at 20 °C, if not notified otherwise):
    1,18 g/cm3
  • Flash Point:
    411.8 °F
  • Lower Explosive Limit:
    0.4 Vol.-%
  • Upper Explosive Limit:
    0.4 Vol.-%
  • Hazardous Effects:
    Ss,Sr,C

*Source: GESTIS Substance Database, https://gestis-database.dguv.de

Also known as:
  • 1,1-methylenebis(4-isocyanatobenzene)
  • 1,1-Methylenebis4-isocyanatobenzene
  • 4,4-Diisocyanatodiphenylmethan
  • 4,4-Diphenylmethane diisocyanate
  • 4,4-methylenediphenyl diisocyanate
  • 4,4`-MDI
  • Bis(1,4-isocyanatophenyl)methan
  • C15H10N2O2
  • ISONATE* M124
  • ISONATE* M125
  • MDI
  • Methylene bisphenyl isocyanate
  • Methylene di-p-phenylene ester of isocya
  • p,p-Diphenylmethane diisocyanate

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