The Phthalic Anhydride, with a weight of 2.5 kg, falls under the category of Aromatic Building Blocks. It is classified as a Carboxylic acid anhydride and has a molecular formula of C8H4O3, with a Molecular Weight of 148.12 g/mol. This substance requires caution due to its corrosive nature, and appropriate personal protective equipment such as safety goggles and gloves should be used. The Phthalic Anhydride carries the GHS signal word "Danger." It is essential to handle this compound with care, given its potential harm if ingested. For more detailed information, please refer to the relevant workplace labels and safety guidelines.

• CAS Number: 85-44-9
• Molecular Formula: C8H4O3
• Molecular Weight: 148.11
• Exact Mass: 148.016043985
• Boiling Point: 563 °F at 760 mmHg (sublimes) (NTP, 1992)
• Melting Point: 267.4 °F (NTP, 1992)
• Vapour Density: 5.1 (NTP, 1992) - Heavier than air; will sink (Relative to Air)
• GHS Signal Word: Danger
• Hazard Statements:
• H302: Harmful if swallowed [Warning Acute toxicity, oral]