Skip to Content
Merck
CN

Key Documents

View All Documentation

P0657

Phthaldialdehyde

suitable for HPLC fluorimetric detection of amino acids, ≥99% (HPLC), powder or crystals

Synonym(s):

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

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Empirical Formula (Hill Notation):
C8H6O2
CAS Number:
643-79-8
Molecular Weight:
134.13
UNSPSC Code:
12352201
NACRES:
NA.21
PubChem Substance ID:
24898119
EC Number:
211-402-2
Beilstein/REAXYS Number:
878317
MDL number:
MFCD00003335
Assay:
≥99% (HPLC)
Form:
powder or crystals
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Quality Level

200

assay

≥99% (HPLC)

form

powder or crystals

technique(s)

HPLC: suitable

color

white to light yellow

mp

55-58 °C

suitability

suitable for HPLC fluorimetric detection of amino acids

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

Application

Phthaldialdehyde has been used:
  • in the preparation of O-phthaldialdehyde reagent for analysing gentamycin content
  • in the preparation of reagent for determining the degree of hydrolysis of milk proteins
  • in the measurement of free amino acids of milk samples by O-phthaldialdehyde/N-acetyl-L-cysteine (OPA/NAC) assay
  • in the derivatization of putrescine samples

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.

Still not finding the right product?

Explore all of our products under Phthaldialdehyde

signalword

Danger

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

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
BCCF5794
BCCC3481
BCCB5919
BCBW3354
BCBT6314

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Bioactive peptides from bovine milk alpha-casein: isolation, characterization and multifunctional properties
Srinivas S and Prakash V
International Journal of Peptide Research and Therapeutics, 16(1), 7-15 (2010)
Gentamicin-eluting bioresorbable composite fibers for wound healing applications
Zilberman M, et al.
Journal of Biomedical Materials Research Part A, 89(3), 654-666 (2009)
Colour change and proteolysis of skim milk during high pressure thermal-processing
Devi AF, et al.
Journal of Food Engineering, 147, 102-110 (2015)
View All Related Papers

Global Trade Item Number

SKUGTIN
P0657-5G04061835547258
P0657-1G04061835507115
P0657-250MG04061835513925