CAS 76058-33-8

Ethyl Red

Description:

Ethyl Red, with the CAS number 76058-33-8, is an organic compound commonly used as a pH indicator in various applications. It is characterized by its ability to change color in response to pH variations, typically transitioning from red in acidic conditions to yellow in neutral to alkaline environments. Ethyl Red is a weak acid, and its color change occurs around a pH range of approximately 4.0 to 6.0. This compound is often utilized in laboratory settings, particularly in titrations and as a dye in biological staining. Ethyl Red is soluble in alcohol and slightly soluble in water, making it suitable for various solvent systems. Additionally, it is important to handle Ethyl Red with care, as it may pose health risks if ingested or inhaled, and appropriate safety measures should be taken during its use. Overall, Ethyl Red serves as a valuable tool in both educational and research contexts for monitoring pH levels.

Formula: C₁₇H₁₉N₃O₂

InChI: InChI=1/C17H19N3O2/c1-3-20(4-2)14-11-9-13(10-12-14)18-19-16-8-6-5-7-15(16)17(21)22/h5-12H,3-4H2,1-2H3,(H,21,22)/p-1/b19-18+

InChI key: HBRCDTRQDHMTDA-UHFFFAOYSA-N

SMILES: CCN(CC)C1=CC=C(C=C1)N=NC2=CC=CC=C2C(=O)O

Synonyms:

• 2-[4-(Diethylamino)phenylazo]benzoic acid
• 2-(4-Diethylaminophenylazo)benzoic acid
• Diethyl red
• 2-{(E)-[4-(diethylamino)phenyl]diazenyl}benzoate
• 4-(DIETHYLAMINO)AZOBENZENE-2'-CARBOXYLIC ACID
• ETHYL RED
• Ethyl Red, pure
• o-(p-Diethylaminophenylazo)benzoic acid
• Ethyl Red Indicator
• Ethyl Red [not Cyanin dyes]
• LABOTEST-BB LT00452774

Ethyl Red [not Cyanin dyes]

CAS: 76058-33-8

Formula: C₁₇H₁₉N₃O₂

Purity: >97.0%(T)

Color and Shape: Orange to Brown to Dark purple powder to crystal

Molecular weight: 297.36

Ref: 3B-D0524

Ethyl Red

CAS: 76058-33-8

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 Sci

Formula: C₁₇H₁₈N₃O₂

Color and Shape: Dark red to dark purple powder, Powder

Molecular weight: 296.35

Ref: 02-A18367

Ethyl Red [Not Cyanin Dyes]

CAS: 76058-33-8

Ethyl Red [Not Cyanin Dyes]

Formula: C₁₇H₁₉N₃O₂

Purity: >98%

Molecular weight: 297.36

Ref: 54-OR1027062

Ethyl red

CAS: 76058-33-8

Ethyl red is an azo pH indicator dye that undergoes a color transition from red to yellow as pH increases. The dye molecule contains an azo (-N=N-) chromophore conjugated with aromatic rings and a carboxylic ester group. Ethyl red exhibits its color transition in the approximately pH 4–6 range, making it suitable for weakly acidic to neutral pH titration applications. Ethyl red is commonly used as an indicator in analytical chemistry for acid-base titrations, particularly in the determination of weak bases. Ethyl red is soluble in organic solvents and provides sharp endpoint detection.

Formula: C₁₇H₁₉N₃O₂

Molecular weight: 297.3517

Ref: TM-T88894

Ethyl Red

CAS: 76058-33-8

Formula: C₁₇H₁₉N₃O₂

Purity: 94%

Color and Shape: Solid

Molecular weight: 297.3517

Ref: IN-DA003QGW