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Merck
CN

223867

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
UNSPSC Code:
12162002
NACRES:
NA.23
PubChem Substance ID:
24853409
EC Number:
202-039-0
Beilstein/REAXYS Number:
2211546
MDL number:
MFCD00002010

Key Documents

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InChI key

RUELTTOHQODFPA-UHFFFAOYSA-N

InChI

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

SMILES string

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

assay

97%

form

liquid

autoignition temp.

>1148 °F

Quality Level

200

bp

129-133 °C/18 mmHg (lit.)

density

1.225 g/mL at 25 °C (lit.)

storage temp.

2-8°C

Related Categories

pictograms

Skull and crossbonesHealth hazard
GHS06,GHS08

signalword

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

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

ppe

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

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
MKCN2330
SHBK3135
SHBH2200V
SHBG5906V
SHBG3497V

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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
B W Day et al.
Chemical research in toxicology, 10(4), 424-431 (1997-04-01)
During our ongoing studies of the reactions of toluene diisocyanate (2,4- and 2,6-diisocyanatotoluene, TDI) in vivo, it became apparent that reactive form(s) of these diisocyanates reach(es) the circulatory system after passage through the respiratory system. Based on recent work by
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
F M Benoit
Journal of biomedical materials research, 27(10), 1341-1348 (1993-10-01)
The release of toluene diisocyanate derivatives from polyurethane foam covers that were removed from the Même breast implant was studied. The polyurethane foam covers as retrieved from the implants were contaminated on average with 2,4- and 2,6-toluene diamine (TDA), 2,4-
Hui-Jung Yeh et al.
Journal of applied toxicology : JAT, 28(2), 189-195 (2007-06-22)
Toluene diisocyanates (TDI) are commonly used in polyurethane (PU)-related products. TDIs have been documented as the leading cause of occupational asthma. Skin exposure to TDI in the workplace is common. However, no studies in the literature have investigated the exact
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