CAS 129-90-8

8-[(4-Methylphenyl)amino]-1-naphthalenesulfonic acid

Description:

8-[(4-Methylphenyl)amino]-1-naphthalenesulfonic acid, commonly referred to as "Methyl Red," is an organic compound characterized by its sulfonic acid functional group and an amino group attached to a naphthalene ring. This compound is typically a dark red to brown solid, soluble in water and various organic solvents, which makes it useful in various applications. It exhibits acidic properties due to the presence of the sulfonic acid group, allowing it to act as a pH indicator, particularly in the pH range of 4.4 to 6.2. The compound is known for its ability to change color in response to pH variations, transitioning from red in acidic solutions to yellow in more alkaline conditions. Additionally, it has applications in dyeing processes, as well as in biological and chemical research as a reagent. Safety considerations include handling it with care, as it may pose health risks upon exposure. Overall, its unique structural features and properties make it a valuable compound in both industrial and laboratory settings.

Formula: C₁₇H₁₅NO₃S

InChI: InChI=1S/C17H15NO3S/c1-12-8-10-14(11-9-12)18-15-6-2-4-13-5-3-7-16(17(13)15)22(19,20)21/h2-11,18H,1H3,(H,19,20,21)

InChI key: InChIKey=FDXOYIGOUGEQBC-UHFFFAOYSA-N

SMILES: N(C=1C2=C(C=CC=C2S(=O)(=O)O)C=CC1)C3=CC=C(C)C=C3

Synonyms:

• 1-Naphthalenesulfonic acid, 8-[(4-methylphenyl)amino]-
• 1-Naphthalenesulfonic acid, 8-p-toluidino-
• 8-p-Toluidino-1-naphthalenesulfonic acid
• 8-[(4-Methylphenyl)amino]-1-naphthalenesulfonic acid
• Tolyl Peri acid

1-Naphthalenesulfonic acid, 8-[(4-methylphenyl)amino]-

CAS: 129-90-8

Formula: C₁₇H₁₅NO₃S

Molecular weight: 313.3709

Ref: IN-DA000YR6