Yes, for product 8.08264, the CAS Number 26471-62-5 refers to Toluene Diisocyanate (TDI), which is a mixture of 70-90% Tolylene-2,4-diisocyanate and 10-30% Tolylene-2,6-diisocyanat. The exact concentration of each is listed on the lot-specific Certificate of Analysis:
https://www.sigmaaldrich.com/product/mm/808264#product-documentation
8.08264
Toluylene diisocyanate
(mixture of isomeres) for synthesis
Synonym(s):
Toluylene diisocyanate, 4-Methyl-m-phenylene diisocyanate, TDI
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100 mL | Check Cart for Availability | $45.00 |
500 mL | Check Cart for Availability | $109.00 $81.75 |
About This Item
Linear Formula:
(NCO)2C6H3CH3
CAS Number:
Molecular Weight:
174.16
MDL number:
UNSPSC Code:
12352118
EC Index Number:
247-722-4
NACRES:
NA.22
Form:
liquid
vapor pressure
0.03 hPa ( 20 °C)
Quality Segment
form
liquid
autoignition temp.
620 °C
potency
4130 mg/kg LD50, oral (Rat), >12200 mg/kg LD50, skin (Rabbit)
expl. lim.
0.9-9.5 % (v/v)
bp
247 °C/1013 hPa
mp
12-14 °C
transition temp
flash point 132 °C
density
1.22 g/cm3 at 20 °C
storage temp.
2-30°C
SMILES string
N(=C=O)c1c(ccc(c1)N=C=O)C
InChI
1S/C9H6N2O2/c1-7-2-3-8(10-5-12)4-9(7)11-6-13/h2-4H,1H3
InChI key
DVKJHBMWWAPEIU-UHFFFAOYSA-N
Application
- Preparation and properties of toluene-diisocyanate-trimer-modified epoxy resin: Discusses the enhancement of epoxy resin properties through the self-polymerization of TDI, aiming to improve performance in industrial applications (X Zhang, L Qiao, X Lu, L Jiang, T Cao, 2019).
- A simple method for the quantification of free isocyanates on the surface of cellulose nanocrystals: This research focuses on the carbamation of cellulose using TDI, which is critical for the modification and enhancement of nanocellulose surfaces for various applications (H Abushammala, 2019).
- Fluorescent linear polyurea based on toluene diisocyanate: Reports the preparation of a TDI-based polyurea that exhibits broad emission spectra, suggesting potential uses in sensor applications and material science (H Cao, B Li, X Jiang, X Zhu, XZ Kong, 2020).
Analysis Note
Assay isomers (GC, area%): ≥ 98.0 % (a/a)
Assay Toluylene-2,6-diisocyanate (NMR): 10.0 - 30.0 % (a/a)
Assay Toluylene-2,4-diisocyanate (NMR): 70.0 - 90.0 % (a/a)
Density (d 20 °C/ 4 °C): 1.218 - 1.222
Identity (IR): passes test
Due to its specific melting range the product may be solid, liquid, a solidified melt or a supercooled melt.
Assay Toluylene-2,6-diisocyanate (NMR): 10.0 - 30.0 % (a/a)
Assay Toluylene-2,4-diisocyanate (NMR): 70.0 - 90.0 % (a/a)
Density (d 20 °C/ 4 °C): 1.218 - 1.222
Identity (IR): passes test
Due to its specific melting range the product may be solid, liquid, a solidified melt or a supercooled melt.
signalword
Danger
target_organs
Respiratory system
wgk
WGK 2
flash_point_f
269.6 °F - closed cup
flash_point_c
132 °C - closed cup
Hazard Classifications
Acute Tox. 1 Inhalation - Aquatic Chronic 3 - Carc. 2 - Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3
Storage Class
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
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"CAS Number: 26471-62-5" Is this mixture of Tolylene-2,4-diisocyanate (80%) and Tolylene-2,6-diisocyanate (20%)?
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