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79765

Phthaldialdehyde

Name: Phthaldialdehyde
Brand: SIAL

suitable for fluorescence, ≥97.0% (HPLC)

Synonym(s):

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

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About This Item

Empirical Formula (Hill Notation):

C₈H₆O₂

CAS Number:

643-79-8

Molecular Weight:

134.13

EC Number:

211-402-2

UNSPSC Code:

12352200

MDL number:

MFCD00003335

Beilstein/REAXYS Number:

878317

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assay

≥97.0% (HPLC)

mp

53-56 °C

suitability

suitable for fluorescence

storage temp.

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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Biochem/physiol Actions

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.

pictograms

GHS06,GHS05,GHS09

signalword

Danger

hcodes

H301,H314,H317,H335,H410

pcodes

P260 - P273 - P280 - P301 + P310 + P330 - P303 + P361 + P353 - P305 + P351 + P338 + P310

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

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

wgk

WGK 3

flash_point_f

269.6 °F - closed cup

flash_point_c

132 °C - closed cup

ppe

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

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Selective extraction of thiol-containing peptides in seawater using Tween 20-capped gold nanoparticles followed by capillary electrophoresis with laser-induced fluorescence.

Chien-Chih Shen et al.

Journal of chromatography. A, 1220, 162-168 (2011-12-22)

This study combines Tween 20-capped gold nanoparticles (Tween 20-AuNPs) with capillary electrophoresis (CE) for ultrasensitive detection of thiol-containing peptides, including glutathione (GSH), γ-glutamylcysteine (γ-GCS), and phytochelatin analogs. By forming AuS bonds, Tween 20-AuNPs can selectively extract and enrich these thiols

Derivatization and chromatographic behavior of the o-phthaldialdehyde amino acid derivatives obtained with various SH-group-containing additives.

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

Fluorometric amino-acid analysis with o-phthaldialdehyde (OPA).

K S Lee et al.

The International journal of biochemistry, 9(7), 457-467 (1978-01-01)

Gold nanoparticle extraction followed by o-phthaldialdehyde derivatization for fluorescence sensing of different forms of homocysteine in plasma.

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

2-Formylcinnamaldehyde formation yield from the OH radical-initiated reaction of naphthalene: effect of NO(2) concentration.

Noriko Nishino et al.

Environmental science & technology, 46(15), 8198-8204 (2012-07-20)

Naphthalene, typically the most abundant polycyclic aromatic hydrocarbon in the atmosphere, reacts with OH radicals by addition to form OH-naphthalene adducts. These OH-naphthalene adducts react with O(2) and NO(2), with the two reactions being of equal importance in air at

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Global Trade Item Number

SKU	GTIN
CDS002953-250MG	04061828965342

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