B9750

Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride

98%

• 동의어(들): 4,4′-Carbonyldiphthalic anhydride
• 실험식(Hill 표기법): C₁₇H₆O₇
• CAS Number: 2421-28-5
• Molecular Weight: 322.23
• Beilstein: 761777
• EC Number: 219-348-1
• MDL number: MFCD00005923
• UNSPSC 코드: 12162002
• PubChem Substance ID: 24892154
• NACRES: NA.23

속성

• vapor density: 1.4 (vs air)
• vapor pressure: <0.1 mmHg ( 0 °C)
• 분석: 98%
• 형태: powder
• autoignition temp.: 975 °F
• expl. lim.: 16 %
• mp: 218-222 °C (lit.)
• SMILES string: O=C1OC(=O)c2cc(ccc12)C(=O)c3ccc4C(=O)OC(=O)c4c3
• InChI: 1S/C17H6O7/c18-13(7-1-3-9-11(5-7)16(21)23-14(9)19)8-2-4-10-12(6-8)17(22)24-15(10)20/h1-6H
• InChI key: VQVIHDPBMFABCQ-UHFFFAOYSA-N

설명

일반 설명

Benzophenone-3,3′,4,4′-tetracarboxylic acid is formed by hydrolysis, it can be converted to the dianhydride by treating with Ac₂O (molar ratio 4 to 1 of acid).The dianhydride is used to synthesize polyimides, which are highly flexible in nature due to the presence of keto and carbonyl groups in the dianhydride molecule. The keto and carbonyl groups subsequently increase the spacing between the imide rings enhancing the solubility and processibility.

애플리케이션

Used in the synthesis of polyimides.

안전성 정보

• 픽토그램: GHS07
• 신호어: Warning
• 유해 및 위험 성명서: H319,H335
• 예방조치 성명서: P261 - P264 - P271 - P280 - P304 + P340 + P312 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - STOT SE 3
• 표적 기관: Respiratory system
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• 개인 보호 장비: dust mask type N95 (US), Eyeshields, Gloves