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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/REAXYS Number:
2211546
EC Number:
202-039-0
MDL number:
MFCD00002010
UNSPSC Code:
12162002
PubChem Substance ID:
24853409
NACRES:
NA.23
Pricing and availability is not currently available.

Quality Level

200

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

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Show Differences

1 of 4

This Item
371130477060361771
Tolylene-2,6-diisocyanate 97%

223867

Tolylene-2,6-diisocyanate

1,4-Diisocyanatobutane 97.0%

371130

1,4-Diisocyanatobutane

2-Isocyanatoethyl methacrylate contains ≤0.1% BHT as inhibitor, 98%

477060

2-Isocyanatoethyl methacrylate

3-Isopropenyl-α,α-dimethylbenzyl isocyanate 95%, contains ≤200 ppm BHT as inhibitor

361771

3-Isopropenyl-α,α-dimethylbenzyl isocyanate

assay

97%

assay

97.0%

assay

98%

assay

95%

density

1.225 g/mL at 25 °C (lit.)

density

1.105 g/mL at 25 °C (lit.)

density

1.098 g/mL at 25 °C (lit.)

density

1.018 g/mL at 25 °C (lit.)

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

-

bp

129-133 °C/18 mmHg (lit.)

bp

102-104 °C/14 mmHg (lit.)

bp

211 °C (lit.)

bp

268-271 °C (lit.)

refractive index

n20/D 1.571 (lit.)

refractive index

-

refractive index

n20/D 1.45 (lit.)

refractive index

n20/D 1.53 (lit.)

form

liquid

form

liquid

form

-

form

liquid

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_germany

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

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    Certificates of Analysis (COA)

    Lot/Batch Number
    MKCN2330
    SHBK3135
    SHBH2200V
    SHBG5906V
    SHBG3497V

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    B W Day et al.
    Chemical research in toxicology, 9(3), 568-573 (1996-04-01)
    Guinea pig hemoglobin (Hb) adducts of 2,4- and 2,6-toluene diisocyanate (2,4- and 2,6-TDI) were individually prepared, each at a Hb tetramer to diisocyanate ratio of 1:1, and compared with adducts of Hb from animals exposed to 1 ppm 2,4-TDI vapor.
    S Mattoli et al.
    The American journal of physiology, 259(4 Pt 1), L320-L327 (1990-10-01)
    Bronchial epithelial cells release chemotactic factors for lymphocytes and express HLA-DR antigens. Thus they may contribute to the T-cell-mediated inflammatory responses involved in a number of pulmonary diseases such as asthma. In this study, the in vitro exposure of human
    P Maestrelli et al.
    Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology, 24(1), 29-34 (1994-01-01)
    To assess the nature and the time-course of the cellular component of airway inflammation induced by isocyanates, we examined nine subjects with occupational asthma induced by toluene- or methylene diphenyl-diisocyanate (TDI, MDI) and four control subjects never exposed to isocyanates.
    Sébastien Gagné et al.
    The Analyst, 128(12), 1447-1451 (2004-01-23)
    Isocyanates can cause occupational asthma. By using available HPLC-UVF methods, isocyanates can be quantified only at levels above 1% of the Permissible Exposure Limits (PEL). Once sensitized, workers can react to concentrations below these limits of detection (LOD) making these
    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
    View All Related Papers

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