1,4-Diphenyl-2-butyne-1,4-dione
[CAS 1087-09-8]

Identification

• Name: 1,4-Diphenyl-2-butyne-1,4-dione
• Synonyms: 1,2-Dibenzoylacetylene; Dibenzoylacetylene; NSC 20233
• Molecular Formula: C₁₆H₁₀O₂
• Molecular Weight: 234.25
• CAS Registry Number: 1087-09-8
• EC Number: 682-944-9

Properties

• Solubility: Practically insoluble (0.011 g/L) (25 °C), Calc.^*
• Density: 1.190±0.06 g/cm³ (20 °C 760 Torr), Calc.^*
• Melting point: 152-153 °C (ethanol )^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2016 ACD/Labs)

^** Tikhonova, L. G.

Safety Data

• Hazard Symbols: N
• Risk Statements: R50/53
• Safety Statements: S60;S61

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410
Chronic hazardous to the aquatic environment	Aquatic Chronic	4	H413

• Transport Information: UN 3077 9 / PGIII