CAS 131-22-6: A-naphthyl red hydrochloride

Description: A-naphthyl red hydrochloride, with the CAS number 131-22-6, is a synthetic organic compound primarily used as a pH indicator and dye. It exhibits a vibrant red color in acidic solutions and transitions to yellow in more alkaline environments, making it useful in various analytical applications. The compound is soluble in water and organic solvents, which enhances its versatility in laboratory settings. A-naphthyl red hydrochloride is often employed in biological and chemical assays, particularly in the determination of pH levels in different media. Its structural characteristics include a naphthalene ring system, which contributes to its chromophoric properties, allowing for colorimetric analysis. Additionally, it is important to handle this compound with care, as it may pose health risks if ingested or inhaled, and appropriate safety measures should be taken during its use. Overall, A-naphthyl red hydrochloride is a valuable tool in both educational and research laboratories for monitoring pH changes and as a staining agent.

Formula: C₁₆H₁₃N₃

InChI: InChI=1S/C16H13N3/c17-15-10-11-16(14-9-5-4-8-13(14)15)19-18-12-6-2-1-3-7-12/h1-11H,17H2

InChI key: InChIKey=IICHURGZQPGTRD-UHFFFAOYSA-N

SMILES: N(=NC1=CC=C(N)C=2C=CC=CC12)C=3C=CC=CC3

Synonyms:

• 1-Naphthalenamine, 4-(2-phenyldiazenyl)-
• 1-Naphthalenamine, 4-(phenylazo)-
• 1-Naphthylamine, 4-phenylazo-
• 4-(2-Phenyldiazenyl)-1-naphthalenamine
• 4-(Phenylazo)-α-naphthylamine
• 4-Benzeneazo-1-naphthylamine
• 4-Phenylazo-1-naphthylamine
• 4-Phenylazonaphthalen-1-Amine
• 4-[(E)-phenyldiazenyl]naphthalen-1-amine
• NSC 13974
• Naphthyl Red NR
• Nubian Yellow TB
• α-Naphthyl red

1-Naphthalenamine, 4-(2-phenyldiazenyl)-

CAS: 131-22-6

• Formula: C₁₆H₁₃N₃
• Purity: 97%
• Color and Shape: Solid
• Molecular weight: 247.2945

4-Phenylazo-1-naphthylamine

CAS: 131-22-6

• Formula: C₁₆H₁₃N₃
• Purity: >95.0%(T)
• Color and Shape: Red to Dark red to Brown powder to crystal
• Molecular weight: 247.30

a-Naphthyl red

CAS: 131-22-6

a-Naphthyl red is a hydroxyl group that can be used as a polymerization initiator for …

• Formula: C₁₆H₁₃N₃
• Purity: Min. 95%
• Molecular weight: 247.29 g/mol