The chemical substance with the title "4-Nitrophenol, 500 G" falls under the category of Aromatic Building Blocks. It is navigable through the pathway of Chemicals > Organic & Bioorganic Chemicals > Building Blocks for Synthesis > Aromatic Building Blocks. Its CAS Number is 100-02-7. This compound, known as 4-Nitrophenol, has a Molecular Weight of 139.11 g/mol and belongs to the substance groups Phenols, substituted and Nitro compounds, aromatic (nitro group on the ring). In the workplace, various precautions should be taken when handling this substance, including using safety goggles, wearing safety gloves, prohibiting smoking, no admittance for unauthorized persons, no eating and drinking, and warning signs indicating caution due to its toxic nature.

• CAS Number: 100-02-7
• Molecular Formula: C6H5NO3
• Molecular Weight: 139.11
• Exact Mass: 139.026943022
• Boiling Point: 534 °F at 760 mmHg (Decomposes) (NTP, 1992)
• Melting Point: 235 to 239 °F (Sublimes) (NTP, 1992)
• Vapour Density: 1.244 at 149 °F (NTP, 1992) - Heavier than air; will sink (Relative to Air)
• GHS Signal Word: Danger
• Hazard Statements:
• H302: Harmful if swallowed [Warning Acute toxicity, oral]
• H301 (77.6%): Toxic if swallowed [Danger Acute toxicity, oral]
• H401: Toxic to aquatic life [Hazardous to the aquatic environment, acute hazard]