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H5126

Sigma-Aldrich

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
Beilstein:
1842696
EC Number:
216-655-2
MDL number:
MFCD00002428
UNSPSC Code:
12352100
PubChem Substance ID:
57654257
NACRES:
NA.22
Pricing and availability is not currently available.

Quality Level

200

Assay

≥90% (HPLC)

mp

204-208 °C (lit.)

solubility

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

SMILES string

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

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+

InChI key

DWQOTEPNRWVUDA-CCEZHUSRSA-N

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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[1]
  • 2,2′-((((4,5-dicyano-1,2-phenylene)bis(oxy))bis(4,1-phenylene))bis(diazene-2,1-diyl)) dibenzoic acid[1]
  • a multifunctional benzoxazine monomer[2]

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

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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