Ph Eur is noted for its consistent composition and reliable behavior. It belongs to the class of Phenols, substituted and Sulphonates (ester), with a molecular formula of C19H14O5S and a molecular weight of 354.4. This compound serves as an indicator in acid-base titrations due to its distinctive color change. As a precaution, it carries a Warning signal word, indicating potential skin irritation.

• CAS Number: 143-74-8
• GHS Signal Word: Warning
• Exact Mass: 354.05619472
• Molecular Weight: 354.4
• Molecular Formula: C19H14O5S
• Hazard Statements:
• H315: Causes skin irritation [Warning Skin corrosion/irritation]