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Merck
CN

A8264

4-Aminophthalhydrazide

≥98% (HPLC), powder

Synonym(s):

6-Amino-2,3-dihydro-1,4-phthalazinedione, Isoluminol

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About This Item

Empirical Formula (Hill Notation):
C8H7N3O2
CAS Number:
3682-14-2
Molecular Weight:
177.16
NACRES:
NA.83
PubChem Substance ID:
24891326
UNSPSC Code:
12352204
MDL number:
MFCD00010560
Beilstein/REAXYS Number:
164804

Key Documents

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Product Name

4-Aminophthalhydrazide,

InChI

1S/C8H7N3O2/c9-4-1-2-5-6(3-4)8(13)11-10-7(5)12/h1-3H,9H2,(H,10,12)(H,11,13)

SMILES string

Nc1ccc2C(=O)NNC(=O)c2c1

InChI key

HUDPLKWXRLNSPC-UHFFFAOYSA-N

assay

≥98% (HPLC)

form

powder

mp

300 °C (lit.)

solubility

2 M NH4OH: 50 mg/mL, clear to slightly hazy

Quality Level

200

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Application

4-Aminophthalhydrazide has been used in:
  • chemiluminescence-based reactive oxygen species (ROS) assay in bone marrow (BM) neutrophils post-Yersinia pseudotuberculosis infection
  • neutrophil ROS assays post-K. pneumonia exposure
  • neutrophil ROS assays in response to formylated-methionine-leucine-proline

Biochem/physiol Actions

4-Aminophthalhydrazide or isoluminol is a chemiluminescent compound that comprises a phthalazine ring. It is more hydrophilic than luminol. Isoluminol is commercially used in a wide variety of in vitro immunoassays and is a chemiluminescence amplifier for studying reactive oxygen species. It is also useful as an electroluminescence (ECL) biosensor and as a probe for rapid microbial detection.

Features and Benefits

Produces chemiluminescence.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
WXBF6913V
BCCH9146
BCCF4876
BCCC2589
BCBV2176

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A new isoluminol reagent for chemiluminescence labeling of proteins
Palmioli A, et al.
Tetrahedron Letters, 54, 4446-4450 (2013)
Anna-Lena Stenfeldt et al.
Luminescence : the journal of biological and chemical luminescence, 22(5), 507-510 (2007-07-05)
A technique was designed for the determination of hydrogen peroxide release. We found, however, that the isoluminol-amplified chemiluminescence technique is a suitable tool for measuring secretion of superoxide but not hydrogen peroxide.
Chiedzo M Mpofu et al.
Gastroenterology, 133(5), 1487-1498 (2007-10-09)
Crohn's disease (CD) is mimicked by inherited phagocyte disorders and is associated with circulating antibodies against yeast mannan (anti-Saccharomyces cerevisiae antibody; ASCA). We speculated that mannans might impair phagocyte function. S cerevisiae mannan was assessed for its effects on human
Jenna Lorenzini et al.
Cellular microbiology, 19(9) (2017-03-28)
Blastomycosis elicits a pyogranulomatous inflammatory response that involves a prominent recruitment of neutrophils to the site of infection. Although neutrophils are efficiently recruited to the site of infection, this event is paradoxically coupled with the host's inability to control infection
Chien-Wen S Kuo et al.
Journal of immunology (Baltimore, Md. : 1950), 187(1), 361-371 (2011-06-08)
Infection of human cells by human T cell leukemia virus type 1 (HTLV-1) is mediated by the viral envelope glycoproteins. The gp46 surface glycoprotein binds to cell surface receptors, including heparan sulfate proteoglycans, neuropilin 1, and glucose transporter 1, allowing
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