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等级
analytical standard
质量水平
方案
≥97.0% (GC)
保质期
limited shelf life, expiry date on the label
技术
HPLC: suitable
gas chromatography (GC): suitable
杂质
≤0.5% o-tolualdehyde (GC)
≤0.50% m-tolualdehyde (GC)
≤1.0% water
≤3.0% free carboxylic acid (T)
折射率
n20/D 1.544-1.548
n20/D 1.545 (lit.)
沸点
204-205 °C (lit.)
82-85 °C/11 mmHg (lit.)
密度
1.019 g/mL at 25 °C (lit.)
应用
cleaning products
cosmetics
flavors and fragrances
food and beverages
personal care
包装形式
neat
SMILES字符串
[H]C(=O)c1ccc(C)cc1
InChI
1S/C8H8O/c1-7-2-4-8(6-9)5-3-7/h2-6H,1H3
InChI key
FXLOVSHXALFLKQ-UHFFFAOYSA-N
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一般描述
p-Tolualdehyde (4-Methylbenzaldehyde) is a methylated benzene that belongs to the class of aromatic aldehydes. It is identified as a flavor/aroma component in Greek cotton honey, Brazilian wines, tobacco, etc. 4-Methylbenzaldehyde is also reported to be produced by the members of the genus, Phellinus.
应用
p-Tolualdehyde may be used as an analytical reference standard for the quantification of the analyte in the following:
- Air samples using high-performance liquid chromatography with UV detection (HPLC-UV).
- Mango cultivars using gas chromatography (GC) and gas chromatography-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.
警示用语：
Warning
危险声明
危险分类
Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2
储存分类代码
10 - Combustible liquids
WGK
WGK 1
闪点(°F)
161.6 °F - closed cup
闪点(°C)
72 °C - closed cup
Gas-phase absorption cross sections of 24 monocyclic aromatic hydrocarbons in the UV and IR spectral ranges
Etzkorn T, et al.
Atmospheric Environment, 33(4), 525-540 (1999)
Basidiomycetes as new biotechnological tools to generate natural aromatic flavours for the food industry
Lomascolo A, et al.
Trends in Biotechnology, 17(7), 282-289 (1999)
Characterization of the aroma profile of novel Brazilian wines by solid-phase microextraction using polymeric ionic liquid sorbent coatings
Crucello J, et al.
Analytical and Bioanalytical Chemistry, 410(19), 4749-4762 (2018)
Investigation of carbonyl compounds in air from various industrial emission sources
Kim H-K, et al.
Chemosphere, 70(5), 807-820 (2008)
Kinetics of gas phase reactions of OH and Cl with aromatic aldehydes
Thiault G, et al.
Physical Chemistry Chemical Physics, 4(11), 2194-2199 (2002)
实验方案
-Tolualdehyde; Valeraldehyde; Isovaleraldehyde
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