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Substance
ID:365814
Structure
Similarity
Functional Group
Text
ID:5513
2-(4-Hydroxyphenylazo)benzoic acid
Sigma Aldrich
ID: 54793
Names and Identifiers
IUPAC Traditional name
2-[2-(4-hydroxyphenyl)diazen-1-yl]benzoic acid
IUPAC name
2-[2-(4-hydroxyphenyl)diazen-1-yl]benzoic acid
Synonyms
2-(4-羟基苯唑)苯甲酸
4′-羟基偶氮苯-2-羧酸
2-(4′-Hydroxybenzeneazo)benzoic acid
2-(4-Hydroxyphenylazo)benzoic acid
2-(4′-羟基苯偶氮)苯甲酸
HABA
HBABA
4′-Hydroxyazobenzene-2-carboxylic acid
Registration numbers
CAS Number
1634-82-8
Beilstein Number
1842696
EC Number
216-655-2
MDL Number
MFCD00002428
PubChem SID
24878994
Properties
Product Information
Cation Traces
Cd: ≤5 mg/kg
Na: ≤100 mg/kg
Co: ≤5 mg/kg
Zn: ≤5 mg/kg
Cu: ≤5 mg/kg
Mn: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Ca: ≤10 mg/kg
Cr: ≤5 mg/kg
K: ≤50 mg/kg
Fe: ≤50 mg/kg
Mg: ≤5 mg/kg
Linear Formula
HOC6H4N=NC6H4CO2H
abs.
absorption/337 nm ≥2000 (mol. absorption)
Analyte suitability
polymers
glycans
peptides
proteins
Purity
≥99.5% (HPLC)
≥99.5%
Grade
matrix substance for MALDI-MS
Safety Information
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
GHS Precautionary statements
P261
-
P305+P351+P338
Safety Statements
26
-
36
GHS Pictograms
Acute toxicity (oral, dermal, inhalation), category 4
Skin irritation, category 2
Eye irritation, category 2
Skin sensitisation, category 1
Specific Target Organ Toxicity – Single exposure, category 3
GHS Hazard statements
H315
-
H319
-
H335
European Hazard Symbols
Irritant (Xi)
GHS Signal Word
Warning
German water hazard class
3
MSDS Link
Download link
Risk Statements
36/37/38
Physical Property
Melting Point
204-208 °C(lit.)
204-208 °C
Solubility
ethanol: soluble20 mg/mL, clear
Molecule Details
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Molecular Spectra
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References
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Registration numbers
Properties
Molecule Details
Molecular Spectra
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