acid yellow 1

Acid yellow 1 is a dye for amino acid and peptide precipitations.

Acid Yellow 36 (Metanil Yellow) is an azo dye and pH indicator, changing color from red at pH 1.2 to yellow at pH 2.3.

Acid Yellow 9 monosodium salt (Hydrogen 4-aminoazobenzene-3,4'-disulphonate (sodium salt)) is an azo dye, degraded by Pseudomonas fluorescens as a sole source of nitrogen, carbon, and energy for the bacterium.

Metachrome yellow is a dye.

1-Pyrenebutyric acid is a useful organic compound for research related to life sciences. The catalog number is T64993 and the CAS number is 3443-45-6.

12-(1-Pyrenyl)dodecanoic acid, catalog number T67159, CAS number 69168-45-2, is a valuable organic compound for life sciences research.

α-Naphtholbenzein, also known as p-Naphtolbenzein, is a dye that serves as a pH indicator, exhibiting a color change from yellow at a pH of 0-8.2 to turquoise at a pH of 10. It is commonly employed in the sequential injection analysis technique for acid-base titrations [1].