Skip to Content
Merck
All Photos(2)

Documents

33428

Supelco

4,4′-MDI

analytical standard

Synonym(s):

4,4′-Methylenebis(phenyl isocyanate), 4,4′-Diphenylmethane diisocyanate, 4,4′-Methylenediphenyl diisocyanate, 4,4′-MDI, Bis(4-isocyanatophenyl)methane

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Linear Formula:
CH2(C6H4NCO)2
CAS Number:
101-68-8
Molecular Weight:
250.25
Beilstein:
797662
EC Number:
202-966-0
MDL number:
MFCD00036131
UNSPSC Code:
41116107
PubChem Substance ID:
329754540
NACRES:
NA.24

grade

analytical standard

Quality Level

100

shelf life

limited shelf life, expiry date on the label

technique(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.)

application(s)

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

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

4,4′-MDI can be extensively used to make urethane elastomers and urethane coatings.
This substance is listed on the positive list of the EU regulation 10/2011 for plastics intended to come into contact with food.

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.

Pictograms

Health hazardExclamation mark
GHS08,GHS07

Signal Word

Danger

Hazard Classifications

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

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
BCCF3263
BCBT8693
SZBD031XV
SZB8318XV
SZE8318X

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Sensitive determination of airborne diisocyanates by HPLC: 4, 4?-Diphenylmethane-diisocyanate (MDI)
Schulz M and Salthammer T
Fresenius Journal of Analytical Chemistry, 362(3), 289-293 (1998)
Liquid chromatography and mass spectrometry determination of aromatic amines in hydrolysed urine from workers exposed to thermal degradation products of polyurethane
Skarping G, et al.
Chromatographia, 39(9-10), 619-623 (1994)
Hatada
Macromolecular Design of Polymeric Materials, 40 (1997)
A highly sensitive high-performance liquid chromatographic procedure for the determination of isocyanates in air
Schmidtke F and Seifert B
Fresenius Journal of Analytical Chemistry, 336(8), 647-654 (1990)
Yan Zhu et al.
Journal of chromatography. A, 956(1-2), 215-220 (2002-07-11)
A method has been developed for the simultaneous determination of a range of aromatic amines using cation-exchange chromatography performed on a standard ion chromatography column using d.c. amperometric detection. The analytes separated were 2,4- and 2,6-toluenediamine (2,4- and 2,6-TDA), aniline
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service