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4-(4-Nitrophenylazo)resorcinol, 90+%

Catalog No. p-7082002
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AAA1223214 25 g
AAA1223222 100 g
AAA1223236 500 g
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Catalog No. AAA1223214 Supplier Thermo Scientific Chemicals Supplier No. A1223214
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CAS: 74-39-5 | C12H9N3O4 | 259.22 g/mol

It is a derivitized resorcinol dye compound with an absorption maximum of 432 nm. Used as a pH indicator.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
It is a derivitized resorcinol dye compound with an absorption maximum of 432 nm. Used as a pH indicator.

Solubility
Soluble in dilute sodium hydroxide. Insoluble in water.

Notes
Store in cool, dry place in a tightly sealed container. Store away from oxidizing agent.

Chemical Identifiers

CAS 74-39-5
Molecular Formula C12H9N3O4
Molecular Weight (g/mol) 259.22
MDL Number MFCD00007310
InChI Key BIFFKKLAAIGZBV-UHFFFAOYSA-N
Synonym p-nitrophenylazoresorcinol, p-diazoviolet, p-nitrobenzeneazoresorcinol, magneson i, magnezon i, 4-p-nitrophenylazo resorcinol, p-diazviolet, 2,4-dihydroxy-4'-nitroazobenzene, magneson, 4-4-nitrophenylazo resorcinol
PubChem CID 5717413
IUPAC Name (4E)-3-hydroxy-4-[(4-nitrophenyl)hydrazinylidene]cyclohexa-2,5-dien-1-one
SMILES OC1=CC(=O)C=CC1=NNC1=CC=C(C=C1)[N+]([O-])=O

Specifications

Melting Point ∼185°C (decomposition)
Quantity 25 g
Beilstein 674709
Merck Index 14,5695
Formula Weight 259.22
Percent Purity 95%
Chemical Name or Material 4- (4-Nitrophenylazo)resorcinol
Hazard Category Warning
Hazard Statement GHS H Statement
H315-H319-H335
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.
Precautionary Statement GHS P Statement
P261-P280-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapors/spray.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do.
Continue rinsing.
IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.
RTECSNumber VH2810000
TSCA TSCA

RUO – Research Use Only