256439

Sigma-Aldrich

4,4′-Methylenebis(phenyl isocyanate)

98%

Sinónimos:
4,4′-MDI, Bis(4-isocyanatophenyl)methane
Fórmula lineal:
CH2(C6H4NCO)2
Número de CAS:
Peso molecular:
250.25
Beilstein/REAXYS Number:
797662
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

assay

98%

reaction suitability

reagent type: cross-linking reagent

bp

200 °C/5 mmHg (lit.)

mp

42-45 °C (lit.)

density

1.18 g/mL at 25 °C (lit.)

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

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Categorías relacionadas

Packaging

50, 500 g in glass bottle
5 kg in poly drum

Application

Uses include UV curable and latent catalyst-containing polymerization compositions.

pictograms

Exclamation markHealth hazard

signalword

Danger

hazcat

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 Germany

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

Certificado de Análisis

Certificado de origen

Journal of Applied Physiology, 70, 6983-6983 (1991)
Joshua W Schaeffer et al.
Journal of occupational and environmental hygiene, 10(4), 213-221 (2013-02-28)
The purpose of this study was to determine if there was a significant difference between two readily available sampling methodologies for airborne methylene bisphenyl diisocyanate (MDI), which is an essential precursor in the spray-on truck bed lining industry. Seventy-two personal...
Adam V Wisnewski et al.
Molecular immunology, 54(2), 233-237 (2013-01-09)
Methylene diphenyl diisocyanate (MDI), a low molecular weight chemical important for producing polyurethane foam, coatings, and elastomers is a major cause of occupational asthma, however, mechanisms of disease pathogenesis remain poorly understood. This study characterizes the rearranged germline and hypervariable...
Malin Engfeldt et al.
Contact dermatitis, 68(3), 175-180 (2012-10-11)
A 43-year-old woman was referred by her occupational health service with suspected occupational contact dermatitis. In connection with the investigation, a workplace visit was undertaken at her company, which used an adhesive based on pre-polymeric diphenylmethane diisocyanate in one of...
Dominika Swierczyńska-Machura et al.
Medycyna pracy, 62(6), 567-577 (2012-02-09)
The aim of the study was to analyze the data obtained during the diagnostic process and their real values in the final diagnosis of patients exposed to diisocyanates amd suspected of occupational allergic disease of the respiratory system The patients...

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