45996
1,2,4-三甲基苯
analytical standard
别名:
偏三甲苯
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关于此项目
线性分子式:
C6H3(CH3)3
化学文摘社编号:
分子量:
120.19
NACRES:
NA.24
PubChem Substance ID:
eCl@ss:
39011403
UNSPSC Code:
41116107
EC Number:
202-436-9
MDL number:
Beilstein/REAXYS Number:
1903005
InChI key
GWHJZXXIDMPWGX-UHFFFAOYSA-N
InChI
1S/C9H12/c1-7-4-5-8(2)9(3)6-7/h4-6H,1-3H3
SMILES string
Cc1ccc(C)c(C)c1
grade
analytical standard
vapor density
4.1 (vs air)
vapor pressure
4.5 mmHg ( 37.7 °C)
autoignition temp.
959 °F
shelf life
limited shelf life, expiry date on the label
expl. lim.
6.4 %
technique(s)
HPLC: suitable, gas chromatography (GC): suitable
refractive index
n20/D 1.504 (lit.)
bp
168 °C (lit.)
mp
−44 °C (lit.)
density
0.876 g/mL at 20 °C (lit.)
application(s)
environmental
format
neat
Quality Level
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Application
1,2,4-Trimethylbenzene may be used as an analytical reference standard for the quantification of the analyte in environmental samples using gas chromatography coupled to mass spectrometry (GC-MS).
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.
Other Notes
Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.
signalword
Danger
Hazard Classifications
Acute Tox. 4 Inhalation - Aquatic Chronic 2 - Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
存储类别
3 - Flammable liquids
wgk
WGK 2
flash_point_f
118.4 °F - closed cup
flash_point_c
48.0 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
法规信息
危险化学品
此项目有
Solid-phase microextraction (SPME) for rapid field sampling and analysis by gas chromatography-mass spectrometry (GC-MS)
Hook.LG, et al.
TrAC, Trends in Analytical Chemistry, 21(8), 534-543 (2002)
Fei Li et al.
Indian journal of dermatology, 65(2), 92-96 (2020-03-18)
Common indoor pollutants, as fine particulate matter (PM2.5), can damage people's health and cause skin allergies. However, it remains unknown which common pollutants can lead to allergy, such as, in children atopic dermatitis, and what is the key molecule. This
Birger Bohn et al.
Physical chemistry chemical physics : PCCP, 14(40), 13933-13948 (2012-09-13)
The reversible gas-phase addition of OH radicals to the trimethylbenzenes was investigated in pulsed experiments utilizing VUV flash-photolysis resonance-fluorescence of H(2)O in the temperature range of 275-340 K. Triexponential OH decays were observed in the presence of the trimethylbenzenes, indicating
Bruno Bühler et al.
Biotechnology and bioengineering, 81(6), 683-694 (2003-01-17)
The two-liquid phase concept was used to develop a whole cell biocatalytic system for the efficient multistep oxidation of pseudocumene to 3,4-dimethylbenzaldehyde. Recombinant Escherichia coli cells were employed to express the Pseudomonas putida genes encoding xylene monooxygenase, which catalyzes the
G Korinth et al.
International archives of occupational and environmental health, 76(5), 382-386 (2003-05-10)
The aim of the experiments was to evaluate the efficacy of skin barrier creams (SBCs) and protective gloves and its potential for reduction of percutaneous absorption of industrial solvents. We assessed percutaneous absorption of ethylene glycol (EG), isopropyl alcohol (IA)
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