4-(4-Nitrophenylazo)resorcinol, 90+%, Thermo Scientific Chemicals

Description

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.

Specifications

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

• 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

Safety and Handling

Product Identifier

• 4-(4-Nitrophenylazo)resorcinol

Signal Word

• Warning

Hazard Category

• Serious eye damage/eye irritation Category 2
• Skin corrosion/irritation Category 2
• Specific target organ toxicity Category 3

Hazard Statement

• H315-Causes skin irritation.
• H319-Causes serious eye irritation.
• H335-May cause respiratory irritation.

Precautionary Statement

• P280-Wear protective gloves/protective clothing/eye protection/face protection.
• P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Supplemental information

• MIXTURE LIST-Contains : 4-(4-Nitrophenylazo)resorcinol

RUO – Research Use Only