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Merck
CN

143634

p-Tolyl isocyanate

99%

Synonym(s):

4-Methylphenyl isocyanate

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About This Item

Linear Formula:
CH3C6H4NCO
CAS Number:
622-58-2
Molecular Weight:
133.15
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
24848599
EC Number:
210-743-4
Beilstein/REAXYS Number:
471494
MDL number:
MFCD00002029

Key Documents

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Product Name

p-Tolyl isocyanate, 99%

InChI key

MGYGFNQQGAQEON-UHFFFAOYSA-N

InChI

1S/C8H7NO/c1-7-2-4-8(5-3-7)9-6-10/h2-5H,1H3

SMILES string

Cc1ccc(cc1)N=C=O

assay

99%

form

liquid

refractive index

n20/D 1.531 (lit.)

bp

70-72 °C/10 mmHg (lit.)

density

1.056 g/mL at 25 °C (lit.)

functional group

isocyanate

storage temp.

2-8°C

Quality Level

100

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Application

p-Tolyl isocyanate was used to study the catalytic role of supported Rhodium(I) complex toward the reductive carbonylation of nitrobenzene in DMF medium.

General description

p-Tolyl isocyanate reacts with human serum albumin to form antigen which helps in detecting IgE antibodies in workers hypersensitive to toluene diisocyanate.

signalword

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Resp. Sens. 1 - Skin Corr. 1C - Skin Sens. 1 - STOT SE 3

target_organs

Respiratory system

Storage Class

8A - Combustible corrosive hazardous materials

wgk

WGK 3

flash_point_f

150.8 °F - closed cup

flash_point_c

66 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ3001
MKCZ0761
MKCW0033
MKCV3566
MKCQ8203

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B T Butcher et al.
The Journal of allergy and clinical immunology, 70(4), 231-235 (1982-10-01)
Toluene diisocyanate (TDI) sensitivity accompanied by nonspecific bronchial hyperresponsiveness occurs in approximately 5% of occupationally exposed workers. We report the case of a 32-yr-old worker followed longitudinally after removal from isocyanate exposure. TDI reactivity was lost 11 mo after removal
J M Danks et al.
Clinical allergy, 11(2), 161-168 (1981-03-01)
Radioallergosorbent testing was used to look for the presence of specific IgE antibody against a para-tolyl-mono-isocyanate human serum albumin conjugate in sera from five groups of subjects. The first three groups consisted of individuals exposed to toluene diisocyanate (TDI) who
Immunologic sensitization and pulmonary hypersensitivity by repeated inhalation of aromatic isocyanates.
M H Karol et al.
Toxicology and applied pharmacology, 53(2), 260-270 (1980-04-01)
[Technology of producing p-toluene isocyanate (C6H4CH3NCO) and a human albumin complex for clinical purposes].
E Sieradzki et al.
Acta poloniae pharmaceutica, 44(2), 237-241 (1987-01-01)
C J Game
American Industrial Hygiene Association journal, 43(10), 759-763 (1982-10-01)
Sera of 91 people were assayed for IgE which bound to a p-tolyl-isocyanate-human serum albumin conjugate. The sera came from 20 blood donors, 70 factory workers, and 1 casualty patient. Three factory workers had abnormally high assay values in association
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