8.07516

1,2,4,5-Benzenetetracarboxylic-1,2:4,5-dianhydride

for synthesis

• Synonym(s): 1,2,4,5-Benzenetetracarboxylic-1,2:4,5-dianhydride, Pyromellitic dianhydride
• CAS Number: 89-32-7
• Molecular Weight: 218.12
• MDL number: MFCD00005005
• UNSPSC Code: 12162002
• EC Index Number: 201-898-9
• NACRES: NA.22

Properties

• vapor pressure: <0.01 hPa ( 20 °C)
• Quality Level: 200
• form: powder
• autoignition temp.: 630 °C
• potency: 2250 mg/kg LD₅₀, oral (Rat)
• bp: 397-400 °C/1013 hPa
• mp: 284-287 °C
• transition temp: flash point 380 °C
• bulk density: 400‑600 kg/m³
• storage temp.: 2-30°C
• InChI: 1S/C10H2O6/c11-7-3-1-4-6(10(14)16-8(4)12)2-5(3)9(13)15-7/h1-2H
• InChI key: ANSXAPJVJOKRDJ-UHFFFAOYSA-N

Description

General description

for synthesis

Application

1,2,4,5-Benzenetetracarboxylic-1,2:4,5-dianhydride for synthesis. CAS 89-32-7, molar mass 218.12 g/mol.

Analysis Note

Assay (estericification)≥ 97.0 %Melting range (lower value)≥ 284 °CMelting range (upper value)≤ 288 °CIdentity (IR)passes test

Safety Information

• Pictograms: GHS05,GHS08
• Signal Word: Danger
• Hazard Statements: H317 - H318 - H334
• Precautionary Statements: P261 - P272 - P280 - P284 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Dam. 1 - Resp. Sens. 1 - Skin Sens. 1
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): 716.0 °F - closed cup
• Flash Point(C): 380 °C - closed cup