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252336

Sigma-Aldrich

2,6-Dimethylphenyl isocyanate

99%

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About This Item

Linear Formula:
(CH3)2C6H3NCO
CAS Number:
28556-81-2
Molecular Weight:
147.17
MDL number:
MFCD00002012
UNSPSC Code:
12352100
PubChem Substance ID:
24855201
NACRES:
NA.22

Assay

99%

form

liquid

refractive index

n20/D 1.5356 (lit.)

bp

87-89 °C/12 mmHg (lit.)

density

1.057 g/mL at 25 °C (lit.)

functional group

isocyanate

storage temp.

2-8°C

SMILES string

Cc1cccc(C)c1N=C=O

InChI

1S/C9H9NO/c1-7-4-3-5-8(2)9(7)10-6-11/h3-5H,1-2H3

InChI key

YQLRKXVEALTVCZ-UHFFFAOYSA-N

Application

2,6-Dimethylphenyl isocyanate has been used in the preparation of:
  • derivatized β-cyclodextrins, used as chiral stationary phase in normal-phase liquid chromatography
  • tris( 2,6-dimethylphenylimido)methylrhenium (VII)
  • 1-(2-isopropylphenyl)-3-(2,6-dimethylphenyl)urea

Pictograms

Health hazardExclamation mark
GHS08,GHS07

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

188.6 °F - closed cup

Flash Point(C)

87 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Jonathan Clayden et al.
Organic & biomolecular chemistry, 6(16), 2908-2913 (2008-08-09)
Except in the most hindered of cases, N,N'-diaryl N,N'-dimethyl ureas adopt a conformation with the two aryl rings disposed cis to one another. Variable temperature NMR studies reveal the rate at which the Ar-N bonds rotate as well as the
Selective substitution of an imido ligand in alkyl-and aryl-imido rhenium (VII) complexes; crystal structures of (2, 6-dimethylphenyl) ammonium trichlorobis (2, 6-dimethylphenyl-imido) methylrhenate (VII) and bis (2, 6-dimethylphenylimido) methylbis (neopentyl) rhenium (VII).
Cook MR, et al.
J. Chem. Soc., Dalton Trans., 797-804 (1991)
Derivatized cyclodextrins for normal-phase liquid chromatographic separation of enantiomers.
Armstrong DW, et al.
Analytical Chemistry, 62(15), 1610-1615 (1990)

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