Methylene Diphenyl Diisocyanate (MDI)
CAS Number
101-68-8Synonym
p,p'-Diphenylmethane diisocyanate; p,p'-Methylenebis[phenyl isocyanate]; Bis(p-isocyanatophenyl)methane; Diphenylmethane diisocyanate; Diphenylmethane p,p'-diisocyanate; Methylenebis[p-phenyl isocyanate]; 4,41-MDI; MDI; Monomeric MDI; NCI-C50668
Occurrence/Use
Manufacture of lacquer coatings, polyurethane resins, and spandex fibers
Acute RELs
| Acute REL (μg/m3): | 12 |
|---|---|
| Species: | Rat |
| Acute REL Target Organs: | Respiratory system |
| Last Acute REL Revision: | 03/30/2016 |
| Acute Reference Exposure Levels Comments: |
Reference Exposure Levels for Methylene Diphenyl Diisocyanate (MDI) |
8-Hour RELs
| 8-Hour Inhalation REL (μg/m3): | 0.16 |
|---|---|
| Last 8-Hour REL Revision: | 03/30/2016 |
| 8-Hour Reference Exposure Levels Comments: |
Reference Exposure Levels for Methylene Diphenyl Diisocyanate (MDI) |
Chronic REL
| Chronic Inhalation REL (μg/m3): | 0.08 |
|---|---|
| Chronic Target Organs: | Respiratory system |
| Human Data: | no |
| Last Chronic REL Revision: | 03/30/2016 |
| Chronic Reference Exposure Levels Comments: |
Reference Exposure Levels for Methylene Diphenyl Diisocyanate (MDI) |