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Merck

79760

Sigma-Aldrich

Phthaldialdehyde

for fluorescence, ≥99.0% (HPLC)

Synonim(y):

Benzene-1,2-dicarboxaldehyde, OPA, o-Phthalaldehyde, o-Phthalic dicarboxaldehyde, o-Phthalaldehyde, o-Phthalic dicarboxaldehyde

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About This Item

Wzór empiryczny (zapis Hilla):
C8H6O2
Numer CAS:
Masa cząsteczkowa:
134.13
Beilstein:
878317
Numer WE:
Numer MDL:
Kod UNSPSC:
12352201
Identyfikator substancji w PubChem:
NACRES:
NA.32

klasa czystości

for fluorescence

Próba

≥99.0% (HPLC)

Formularz

solid

zanieczyszczenia

≤0.5% phthalic acid

mp

54-56 °C

fluorescencja

λex 334 nm; λem 455 nm (Thiol Adduct)
λex 340 nm; λem 450 nm in reaction buffer (with glycine)

przydatność

suitable for fluorescence

temp. przechowywania

2-8°C

ciąg SMILES

O=Cc1ccccc1C=O

InChI

1S/C8H6O2/c9-5-7-3-1-2-4-8(7)6-10/h1-6H

Klucz InChI

ZWLUXSQADUDCSB-UHFFFAOYSA-N

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Opis ogólny

Phthaldialdehyde, also known as o-Phthalaldehyde or OPA, is a pre-column (HPLC) derivatization reagent. OPA reacts with primary amino acids (AA) except cystine to form highly fluorescent adducts. The fluorescence of the derivatives is monitored at excitation and emission wavelengths of 345nm and 455nm, respectively. The HPLC technique efficiently separates the OPA-AA derivatives.

Zastosowanie

Phthaldialdehyde or OPA determines amino acids in proteins from animal tissue and food samples. Quantification of amino acids adducts of tyramine and phenylethylamine produced by lactic acid bacteria used OPA as the pre-column derivative reagent for HPLC. Intracellular forms of glutathione (GSH/GSSG) are investigated using o-Phthalaldehyde as the pre-column fluorescent agent.

Działania biochem./fizjol.

Phthaldialdehyde can be used for the pre-column derivatization of amino acids for high-performance liquid chromatography (HPLC) separation. It may also be used for flow cytometric measurements of protein thiol groups.
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Hasło ostrzegawcze

Danger

Zwroty wskazujące rodzaj zagrożenia

Klasyfikacja zagrożeń

Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT SE 3

Organy docelowe

Respiratory system

Kod klasy składowania

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

Klasa zagrożenia wodnego (WGK)

WGK 3

Temperatura zapłonu (°F)

269.6 °F - closed cup

Temperatura zapłonu (°C)

132 °C - closed cup

Środki ochrony indywidualnej

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter


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José María Landete et al.
International journal of food microbiology, 115(3), 364-368 (2007-02-20)
The ability of wine lactic acid bacteria to produce tyramine and phenylethylamine was investigated by biochemical and genetic methods. An easy and accurate plate medium was developed to detect tyramine-producer strains, and a specific PCR assay that detects the presence
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Sphingolipid ceramide N-deacylase (SCDase) catalyzes reversible reactions in which the amide linkage in glycosphingolipids is hydrolyzed or synthesized. While SCDases show great value for the enzymatic synthesis of glycosphingolipids, they are relatively poorly characterized enzymes. In this work, the enzymatic
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Scandinavian journal of work, environment & health, 41(2), 124-139 (2015-01-20)
This study aimed to assess the effects of physically demanding work - measured as energy expenditure (EE) during occupational physical activities (OPA) - on risk of acute myocardial infarction (AMI) among men with and without preexisting ischemic heart disease (IHD).
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The New phytologist, 193(1), 51-57 (2011-11-11)
• Sphingolipids are emerging as important mediators of cellular and developmental processes in plants, and advances in lipidomics have yielded a wealth of information on the composition of plant sphingolipidomes. Studies using Arabidopsis thaliana showed that the dihydroxy long-chain base

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