Acid Yellow 49 CAS#12239-15-5

Acid Yellow 49, with a molecular formula of C₁₆H₁₃Cl₂N₅O₃S and a molecular weight of 426.277.
It is a yellow powder with a density of about 1.62g/cm³ (20℃). Its water solubility is 273.4μg/L (25℃), its vapor pressure is 0Pa (25℃), and its refractive index is 1.719.
Acid Yellow 49 is an acid dye that can be used for dyeing textiles, paper, adhesives, leather, etc.
When dyeing, it should be noted that the color may be slightly darker when it encounters copper and iron ions.
When using Acid Yellow 49 or products containing this substance, relevant safety operating procedures should be followed to avoid inhalation, ingestion or contact with eyes and skin, etc. It is recommended to wear appropriate personal protective equipment such as gloves, glasses and masks during operation.
Its synthesis usually involves the condensation reaction of tetraacetylaniline with sulfuric acid. By using appropriate conditions and catalysts, this saturated dye can be synthesized.