79760

Sigma-Aldrich

Phthaldialdehyde

for fluorescence, ≥99.0% (HPLC)

Sinónimos:
o-Phthalic dicarboxaldehyde, OPA, Benzene-1,2-dicarboxaldehyde, o-Phthalaldehyde
Empirical Formula (Hill Notation):
C8H6O2
Número de CAS:
Peso molecular:
134.13
Beilstein/REAXYS Number:
878317
Número de EC:
Número MDL:
ID de la sustancia en PubChem:
NACRES:
NA.32

Nivel de calidad

100

grado

for fluorescence

ensayo

≥99.0% (HPLC)

impurezas

≤0.5% phthalic acid

mp

54-56 °C

fluorescencia

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

temp. de almacenamiento

2-8°C

SMILES string

O=Cc1ccccc1C=O

InChI

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

InChI key

ZWLUXSQADUDCSB-UHFFFAOYSA-N

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Aplicación

For precolumn derivatization of amino acids for HPLC separation. For flow cytometric measurements of protein thiol groups.

Palabra de señalización

Danger

hazcat

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

Órganos de actuación

Respiratory system

storage_class_code

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

WGK Alemania

WGK 3

Punto de inflamabilidad F

269.6 °F - closed cup

Punto de inflamabilidad C

132 °C - closed cup

Equipo de protección personal

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

Certificado de Análisis

Certificado de origen

I Molnár-Perl
Journal of chromatography. A, 913(1-2), 283-302 (2001-05-18)
An overview is presented of HPLC methods currently in use to determine amino acids as their o-phthaldialdyde derivatives in the presence of various SH-group-containing additives. Crucial points that proved to influence the stability of the amino acid OPA derivatives have...
Niklas Krause et al.
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)....
M Nurul Islam et al.
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...
Yi-Jhen Lai et al.
Talanta, 91, 103-109 (2012-03-01)
This study reports a selective and sensitive method for fluorescent detection of total, protein-bound, free, and free oxidized homocysteine (HCys) using tris(2-carboxyethyl)phosphine (TCEP) as a reducing agent, fluorosurfactant-capped gold nanoparticles (FSN-AuNP) as a preconcentrating probe, and o-phthaldialdehyde (OPA) as a...
Attila Sipos et al.
Bioorganic & medicinal chemistry letters, 22(23), 7092-7096 (2012-10-27)
The primary amino function of teicoplanin pseudoaglycon has been transformed into arylthioisoindole or benzoisoindole and glycosylthioisoindole derivatives, in a reaction with o-phthalaldehyde or naphtalene-2,3-dicarbaldehyde and various thiols. All of the obtained semisynthetic antibiotics exhibited potent antibacterial activities against Gram-positive bacteria...

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