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Merck
CN

00681

Sigma-Aldrich

Phthaldialdehyde

puriss. p.a., ≥98.5% (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
Beilstein:
878317
EC Number:
211-402-2
MDL number:
MFCD00003335
UNSPSC Code:
12352100
PubChem Substance ID:
24844938

Key Documents

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grade

puriss. p.a.

Assay

≥98.5% (HPLC)

impurities

≤0.5% phthalic acid

ign. residue

≤0.1% (as SO4)

mp

54-56 °C

cation traces

Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

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.

Signal Word

Danger

Hazard Statements

H301,H314,H317,H335,H410

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 Code

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Journal of food science, 77(8), M490-M498 (2012-07-20)
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