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
• UNSPSC Code: 12162002
• EC Index Number: 201-898-9
• NACRES: NA.22
• MDL number: MFCD00005005

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
• SMILES string: [o]1[c](c2c([c]1=O)cc3c([c]([o][c]3=O)=O)c2)=O
• 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
• signalword: Danger
• hcodes: H317 - H318 - H334
• pcodes: P261 - P272 - P280 - P284 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Dam. 1 - Resp. Sens. 1 - Skin Sens. 1
• Storage Class: 11 - Combustible Solids
• wgk: WGK 1
• flash_point_f: 716.0 °F - closed cup
• flash_point_c: 380 °C - closed cup