This website uses cookies. By using the website you agree to our cookie policy. You can change your cookie settings in your browser.Find out more

4,4'-Diphenylmethane diisocyanateC15H10N2O2

Hazard signs
Occupational exposure limit
  • IDLH (mg/m3) 75
Occupational Exposure Limits may differ for your Province. Review your local Occupational Health and Safety Act for more information.
  • 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)

Melting point:40 °C
Boiling Point:300 °C
Density (at 20 °C, if not notified otherwise):1,18 g/cm3
Flash Point:196 °C
Ignition Temperature:600 °C
Lower Explosive Limit:0,4 Vol.-%
Upper Explosive Limit:0,4 Vol.-%
Hazardous Effects:Ss,Sr,C
diamond23 2


Diamond-Red2Flammability: Flammable when warm 
Diamond-Yellow3Instability: Explosion risk when heated 
Diamond-Blue2Health: Dangerous 
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

Suitable products for 4,4'-Diphenylmethane diisocyanate C15H10N2O2

Whether portable gas detectors, gas detection tubes or personal protective equipment - Dräger offers a comprehensive portfolio to protect you when handling hazardous substances.

Gas Detection Tubes

Sampling tubes

Dräger Sampling Tubes and Systems

  • Sampling tubes
  • ​analysis of the sample in a laboratory
  • measurement of complex compounds and mixtures of substances possible 
  • detection of low concentrations possible 
Automatic tube pump

Dräger X-act® 5000 Basic

  • Automatic tube pump
  • ideal for a high number of strokes
  • can be used in explosive areas
  • highly visible end of measurement indicator
Manual tube pump

Dräger accuro

  • Manual tube pump
  • for spot measurements with a limited number of strokes
  • integrated stroke counter for safe control
  • easy to operate with one hand
  • can be used in explosive areas 


Respirator filter Bayonet

Dräger X-plore® Bayonet Filter

  • Respirator filter Bayonet
  • Dräger specific Bayonet connection
  • lateral position of the filters for an unrestricted field of vision and even weight distribution
  • to be used with X-plore 3300 or X-plore ...

Dräger X-plore® Rd40 Filter


Single-filter full-face mask

Dräger Panorama Nova®

  • Single-filter full-face mask
  • ​​different thread connections: RA thread connection Rd40, PE thread connection M45x3, ESA plug-in connector, P Dräger plug-in connection
  • EPDM or silicone mask body, ...
Twinfilter full-face mask

Dräger X-plore® 5500

  • Twinfilter full-face mask
  • Dräger specific bayonet connection - lateral position of the filters 
  • EPDM mask body, visor made of triplex or PC
  • to be used in combination with X-plore Bayonet ...
Single-filter full-face mask

Dräger X-plore® 6300

  • Single-filter full-face mask
  • ​standard thread connection Rd40 according to EN 148-1
  • EPDM mask body, visor made of PMMA
  • to be used with all filters with standard thread connection Rd40

Single-filter full-face mask

Dräger X-plore® 6530

  • Single-filter full-face mask
  • ​standard thread connection Rd40 according to EN 148-1
  • EPDM mask body, visor made of triplex or PC
  • to be used with all filters with standard thread connection ...
Twin-filter half-face mask

Dräger X-plore® 3300/3500

  • Twin-filter half-face mask
  • ​Dräger specific bayonet connection (twin-filter system)
  • mask body made from Soft-TPE or DrägerFlex material (silicon free)
  • to be used with X-plore Bayonet ...

Powered Air Purifying Respirators and Filters

Filters for PAPR

Dräger X-plore® 8000 Filters

  • Filters for PAPR
  • Particle, gas and combination filters available
  • To be used with powered air purifying respirator X-plore® 8500 or 8700 (EX)
  • Optional pre- and odour filter


Dräger X-plore® 8000

Get in touch with Dräger

If you need further advice for the product selection or if you have not yet found what you want, get in touch with us, we'll find a solution for you.

Discover more: Dräger VOICE - The hazmat-based safety product finder

You know what - We know how! Our database provides you with basic information on more than 1,500 hazardous substances and guides you, according to a substance, to suitable gas detectors and protection equipment. Give it a try!

VOICE Hazmat