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223867

Sigma-Aldrich

Tolylene-2,6-diisocyanate

97%

Synonym(s):

2-Methyl-m-phenylene diisocyanate

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About This Item

Linear Formula:
CH3C6H3(NCO)2
CAS Number:
91-08-7
Molecular Weight:
174.16
Beilstein:
2211546
EC Number:
202-039-0
MDL number:
MFCD00002010
UNSPSC Code:
12162002
PubChem Substance ID:
24853409
NACRES:
NA.23

Assay

97%

form

liquid

autoignition temp.

>1148 °F

refractive index

n20/D 1.571 (lit.)

bp

129-133 °C/18 mmHg (lit.)

density

1.225 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

Cc1c(cccc1N=C=O)N=C=O

InChI

1S/C9H6N2O2/c1-7-8(10-5-12)3-2-4-9(7)11-6-13/h2-4H,1H3

InChI key

RUELTTOHQODFPA-UHFFFAOYSA-N

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Pictograms

Skull and crossbonesHealth hazard
GHS06,GHS08

Signal Word

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Aquatic Chronic 3 - Carc. 2 - Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 2

Flash Point(F)

230.0 °F - closed cup

Flash Point(C)

110 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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G Sesana et al.
American Industrial Hygiene Association journal, 52(5), 183-186 (1991-05-01)
A new sampling system is presented that uses solid sorbent media contained in a tube for the determination of airborne isocyanates (2.4-2.6 toluene diisocyanate, hexamethylene diisocyanate, and 4.4' diaminodiphenylmethane diisocyanate). The method is compared with the National Institute for Occupational
P Carbonnelle et al.
The Analyst, 121(5), 663-669 (1996-05-01)
In recent years, epidemiological evidence that exposure to toluene diisocyanate (TDI) is associated with adverse health effects has led to the development of useful analytical methods for the biological monitoring of TDI. In this paper, an HPLC method is presented
J Huang et al.
Archives of toxicology, 67(6), 373-378 (1993-01-01)
Groups of guinea pigs were exposed via inhalation to toluene diisocyanate (TDI) ranging from 0.02 to 1.0 ppm for 3 h/day on 5 consecutive days. Three weeks later, guinea pigs were challenged with TDI-GSA conjugates. Evaluations were based on TDI
A Maître et al.
International archives of occupational and environmental health, 65(2), 97-100 (1993-01-01)
The study validated the use of urinary toluene diamine (TDA) in postshift samples as an indicator of preceding 8-h exposure to toluene diisocyanate (TDI). Nine workers exposed in TDI-based polyurethane foam production were studied. Their exposure levels varied in 8-h
Justin M Hettick et al.
Analytical biochemistry, 414(2), 232-238 (2011-04-05)
Diisocyanates are highly reactive chemical compounds widely used in the manufacture of polyurethanes. Although diisocyanates have been identified as causative agents of allergic respiratory diseases, the specific mechanism by which these diseases occur is largely unknown. To better understand the
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