| Identification | More | [Name]
2-(4-Hydroxyphenylazo)benzoic acid | [CAS]
1634-82-8 | [Synonyms]
2-(4'-HYDROXYAZOBENZENE) BENZOIC ACID
2-(4-HYDROXYBENZENEAZO)BENZOIC ACID
2-[4'-HYDROXY-BENZENEAZO]BENZOIC ACID
2'-(4-HYDROXYPHENYLAZO)BENZOIC ACID
2-(4'-HYDROXYPHENYLAZO)BENZOIC ACID
2-(4-HYDROXYPHENYLAZO)BENZOIC ACID
2-(P-HYDROXYPHENYLAZO)BENZOIC ACID
4-Amino-2-hydroxybutanoic acid
4'-HYDROXYAZOBENZENE-2-CARBOXYLIC ACID
4-HYDROXYAZOBENZENE-2'-CARBOXYLIC ACID
4-HYDROXYAZOBENZENE-2-CARBOXYLIC ACID
4'-HYDROXYPHENYLAZO-2-BENZOIC ACID
HABA
HABA DYE
HBABA
LABOTEST-BB LT00453526
O-(P-HYDROXYPHENYLAZO)BENZOIC ACID
2-[(4-hydroxyphenyl)azo]-benzoicaci
p-Hydroxybenzeneazo-o-benzoi
2-(4-Hydroxyazobenzene)benzoic acid HABA | [EINECS(EC#)]
216-655-2 | [Molecular Formula]
C13H10N2O3 | [MDL Number]
MFCD00002428 | [Molecular Weight]
242.23 | [MOL File]
1634-82-8.mol |
| Chemical Properties | Back Directory | [Appearance]
light yellow to orange powder | [Melting point ]
204-208 °C(lit.) | [Boiling point ]
385.05°C (rough estimate) | [density ]
1.2480 (rough estimate) | [refractive index ]
1.5300 (estimate) | [storage temp. ]
Store below +30°C. | [solubility ]
ethanol: 20 mg/mL, clear
| [form ]
powder to crystal | [pka]
3.40±0.36(Predicted) | [color ]
Light yellow to Brown | [Stability:]
Stable. Incompatible with strong oxidizing agents. | [BRN ]
1842696 | [CAS DataBase Reference]
1634-82-8(CAS DataBase Reference) | [EPA Substance Registry System]
Benzoic acid, 2-[(4-hydroxyphenyl)azo]- (1634-82-8) | [Absorption]
≥2000 at 337nm (mol. absorption) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing . | [WGK Germany ]
3
| [Hazard Note ]
Irritant | [TSCA ]
Yes | [HS Code ]
29270000 |
| Hazard Information | Back Directory | [Chemical Properties]
light yellow to orange powder | [Uses]
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
| [Definition]
ChEBI: An azo compound that is azobenzene in which one phenyl group is substituted at position 4 by a hydroxy group, while the other phenyl group is substituted at position 2 by a carboxy group. It is used as a matrix in matrix-assisted laser desorption/ionizatio
(MALDI) mass spectrometry. | [General Description]
2-(4-Hydroxyphenylazo)benzoic acid) (HABA), can be used for desorption of proteins, peptides and glycoproteins, thereby making it very advantageous for matrix-assisted laser desorption ionization mass spectrometry. |
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