Thermo Scientific Chemicals Methyl Red, pure, indicator

Product Code	Brand	Quantity	Packaging
10247690	Thermo Scientific Chemicals 264440250	25 g	Glass bottle
10115210	Thermo Scientific Chemicals 264441000	100 g	Glass bottle
11925651	Thermo Scientific Chemicals 264445000	500 g	Glass Bottle

Description

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

Indicator

Chemical Identifiers

• CAS: 493-52-7
• Molecular Weight (g/mol): 269.304
• Synonym: Acid Red 2, 2-[4-(Dimethylamino)phenylazo]benzoic acid, C.I. 13020
• IUPAC Name: 2-[[4-(dimethylamino)phenyl]diazenyl]benzoic acid

• Molecular Formula: C15H15N3O2
• InChI Key: CEQFOVLGLXCDCX-UHFFFAOYSA-N
• PubChem CID: 10303
• SMILES: CN(C)C1=CC=C(C=C1)N=NC2=CC=CC=C2C(=O)O

Specifications

• Melting Point: 178.0°C to 182.0°C
• Molecular Formula: C15H15N3O2
• Synonym: Acid Red 2, 2-[4-(Dimethylamino)phenylazo]benzoic acid, C.I. 13020
• InChI Key: CEQFOVLGLXCDCX-UHFFFAOYSA-N
• SMILES: CN(C)C1=CC=C(C=C1)N=NC2=CC=CC=C2C(=O)O
• Molecular Weight (g/mol): 269.304
• Formula Weight: 269.3
• Specific Extinction: 650 min. (430nm, in buffer)
• Color: Red
• Chemical Name or Material: Methyl Red

• CAS: 493-52-7
• Linear Formula: (CH₃)₂NC₆H₄N=NC₆H₄CO₂H
• Solubility Information: Solubility in water: almost insoluble. Other solubilities: soluble in ethanol, acetic acid
• Infrared Spectrum: Authentic
• IUPAC Name: 2-[[4-(dimethylamino)phenyl]diazenyl]benzoic acid
• PubChem CID: 10303
• Grade: Pure
• Visual Transition Interval: from pH 4.2 (red) to pH 6.2 (yellow)
• Physical Form: Powder

Safety and Handling

GHS H Statement:
Harmful if swallowed.

GHS P Statement:
IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell.

WARNING: The information provided on this web site was developed in compliance with European Union (EU) regulations and is correct to the best of our knowledge, information and belief at the date of its publication. The information given is designed only as a guide for safe handling and use. It is not to be considered as either a warranty or quality specification.

Warning

Product Identifier

• Methyl Red

RUO – Research Use Only