Butter Yellow, scientifically known as Solvent Yellow 2 and identified by CAS 60-11-7, possesses a fascinating history within the chemical industry. Initially popular as a food coloring agent, its bright yellow hue made it a common additive for products like butter and margarine. However, scientific research later revealed its carcinogenic properties, leading to significant restrictions and a shift in its primary applications.

Today, the main utility of Solvent Yellow 2 lies in its effectiveness as a pH indicator. Its well-defined color change, from red to yellow within the 2.9-4.0 pH range, makes it indispensable for precise acid-base titrations and the qualitative determination of acidity. Laboratories and research institutions often seek to purchase Solvent Yellow 2 for these analytical purposes. NINGBO INNO PHARMCHEM CO.,LTD. is a key supplier, offering this compound to meet the demands of scientific research and industrial quality control.

The chemical synthesis of Solvent Yellow 2 involves the diazotization of aniline followed by coupling with N,N-dimethylaniline. This process, when executed with precision, yields the characteristic yellow powder. Understanding the price of Solvent Yellow 2 is crucial for budget planning in research projects. NINGBO INNO PHARMCHEM CO.,LTD. strives to provide competitive pricing for this essential chemical.

While its historical use as a food colorant is largely phased out due to safety concerns, the ongoing demand for Solvent Yellow 2 as a pH indicator underscores its continued importance in analytical chemistry. Researchers interested in its various applications, from gastric acid determination to general titrations, can rely on NINGBO INNO PHARMCHEM CO.,LTD. for their supply needs. Adhering to safety guidelines when handling this chemical is paramount, and comprehensive product information is readily available from suppliers.