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Merck
CN

H5126

2-(4-Hydroxyphenylazo)benzoic acid

≥90% (HPLC)

Synonym(s):

2-(4′-Hydroxybenzeneazo)benzoic acid, 4′-Hydroxyazobenzene-2-carboxylic acid, HABA, HBABA

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About This Item

Linear Formula:
HOC6H4N=NC6H4CO2H
CAS Number:
1634-82-8
Molecular Weight:
242.23
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
57654257
EC Number:
216-655-2
Beilstein/REAXYS Number:
1842696
MDL number:
MFCD00002428

Key Documents

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Product Name

2-(4-Hydroxyphenylazo)benzoic acid, ≥90% (HPLC)

InChI

1S/C13H10N2O3/c16-10-7-5-9(6-8-10)14-15-12-4-2-1-3-11(12)13(17)18/h1-8,16H,(H,17,18)/b15-14+

SMILES string

Oc1ccc(cc1)\N=N\c2ccccc2C(O)=O

InChI key

DWQOTEPNRWVUDA-CCEZHUSRSA-N

assay

≥90% (HPLC)

mp

204-208 °C (lit.)

solubility

ethanol: 20 mg/mL, clear to hazy, orange to very deep orange

Quality Level

200

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Application

2-(4-Hydroxyphenylazo)benzoic acid may be used in the preparation of:
  • 2-((4-(3,4-dicyanophenoxy)phenyl)diazenyl)benzoic acid
  • 2,2′-((((4,5-dicyano-1,2-phenylene)bis(oxy))bis(4,1-phenylene))bis(diazene-2,1-diyl)) dibenzoic acid
  • a multifunctional benzoxazine monomer

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
BCCJ7710
BCCF0684
BCCD4366
BCCD3746
BCBV7265

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New water soluble phenoxy phenyl diazenyl benzoic acid substituted phthalocyanine derivatives: Synthesis, antioxidant activities, atypical aggregation behavior and electronic properties.
Agirtas MS, et al.
Dyes and Pigments, 99(2), 423-431 (2013)
Multifunctional polybenzoxazine nanocomposites containing photoresponsive azobenzene units, catalytic carboxylic acid groups, and pyrene units capable of dispersing carbon nanotubes.
Mohamed MG, et al.
Royal Society of Chemistry Advances, 5(56), 45201-45212 (2015)
M A Domin et al.
Rapid communications in mass spectrometry : RCM, 13(4), 222-226 (1999-03-31)
The ability to rapidly identify the taxonomic class of the wide variety of microorganisms involved in human and animal disease is becoming increasingly important, especially with the increasing development of resistance to the antibiotics which form the main defence against
Juha A E Määttä et al.
Chembiochem : a European journal of chemical biology, 9(7), 1124-1135 (2008-04-03)
Chicken avidin is a key component used in a wide variety of biotechnological applications. Here we present a circularly permuted avidin (cpAvd4-->3) that lacks the loop between beta-strands 3 and 4. Importantly, the deletion of the loop has a positive
Kai Qi et al.
Journal of the American Chemical Society, 126(21), 6599-6607 (2004-05-27)
Shell cross-linked nanoparticles (SCKs) presenting surface- and bioavailable biotin functional groups were synthesized via a mixed micelle methodology, whereby co-micellization of chain terminal biotinylated poly(acrylic acid)-b-poly(methyl acrylate) (PAA-b-PMA) and nonbiotinylated PAA-b-PMA were cross-linked in an intramicellar fashion within the shell
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