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529-20-4 - o-Tolualdehyde, 98%, stab. with 0.1% hydroquinone - 2-Methylbenzaldehyde - A10172 - Alfa Aesar

A10172 o-Tolualdehyde, 98%, stab. with 0.1% hydroquinone

Codice CAS
529-20-4
Sinonimi
2-Methylbenzaldehyde

Dimensioni Prezzo ($) Quantità Disponibilità
25g 46,98
100g 118,11
500g 423,98
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o-Tolualdehyde, 98%, stab. with 0.1% hydroquinone

MDL
MFCD00003338
EINECS
208-452-2

Proprietà chimiche

Formula
C8H8O
Peso formula
120.15
Punto di fusione
-35°
Punto di ebollizione
199-200°
Punto di infiammabilità
67°(152°F)
Densità
1.037
Indice di rifrazione
1.5470
Sensibilità
Air Sensitive
Solubilità
Soluble in carbon tetrachloride, ethanol, ethyl ether, benzene. Not miscible in water.

Applicazioni

o-tolualdehyde was used in determination of alkenal-2,4-dinitrophenylhydrazones by HPLC by addition of phosphoric acid. It produces to give a single diastereomer of the tetrahydronaphthalene derivative under UV irradiation.

Note

Air Sensitive. Incompatible with air and oxidizing agents. Store under dry inert gas.

Letteratura

Shigehisa Uchiyama; Erika Matsushima; Shohei Aoyagi; Masanori Ando. Measurement of acid-catalyzed isomerization of unsaturated aldehyde-2,4-dinitrophenylhydrazone derivatives by high-performance liquid chromatography analysis. Analytica Chimica Acta. 2004, 523 157-163.

Grainne M Clifford; Aurélie Hadj-Aïssa; Robert M Healy; Abdelwahid Mellouki; Amalia Muñoz; Klaus Wirtz; Montserrat Martín Reviejo; Esther Borrás; John C Wenger. The atmospheric photolysis of o-tolualdehyde. Environmental Science & Technology. 2011, 45 (22), 9649-9657.

Under u.v. irradiation, o-tolualdehyde generates exclusively the (E)-dienol form which may be trapped by cycloaddition with the acrylate (or fumarate) ester of methyl lactate, to give a single diastereomer of the tetrahydronaphthalene derivative: Can. J. Chem., 67, 574 (1989):

The imine with t-butylamine undergoes lateral lithiation with LDA at the o-methyl group; see, e.g.: J. Org. Chem., 59, 2616 (1994).

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H301-H315-H319-H335-H227

Toxic if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Combustible liquid.

Dichiarazioni precauzionali: P210-P261-P280-P301+P310-P305+P351+P338-P304+P340-P362-P312-P405-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Call a POISON CENTER or doctor/physician if you feel unwell. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Merck
14,9527
Beilstein
605841
Codice tariffe armonizzato
2912.29
TSCA
No

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