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주요 문서

COO/COA

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B9750

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

Name: Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride
Brand: ALDRICH

98%

동의어(들):

4,4′-Carbonyldiphthalic anhydride

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About This Item

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

추천 제품

Slide 1 of 10

1 of 10

Sigma-Aldrich

412287

Pyromellitic dianhydride

Sigma-Aldrich

524492

4,4′-Oxydiphthalic anhydride

Sigma-Aldrich

463310

3,3′,4,4′-Biphenyltetracarboxylic dianhydride

Sigma-Aldrich

386448

4,4′-(Hexafluoroisopropylidene)diphthalic anhydride

Sigma-Aldrich

478032

4,4′-(4,4′-Isopropylidenediphenoxy)bis(phthalic anhydride)

Sigma-Aldrich

516805

4,4′-Oxydianiline

Sigma-Aldrich

476323

4,4′-(1,3-Phenylenedioxy)dianiline

Sigma-Aldrich

B4007

1,2,4,5-Benzenetetracarboxylic acid

Sigma-Aldrich

N818

1,4,5,8-Naphthalenetetracarboxylic dianhydride

Sigma-Aldrich

161330

Cyclobutane-1,2,3,4-tetracarboxylic dianhydride

vapor density

1.4 (vs air)

Quality Level

200

vapor pressure

<0.1 mmHg ( 0 °C)

분석

98%

양식

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

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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.