Skip to Content
MilliporeSigma

Skip To

B9750

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

98%

Synonym(s):

4,4′-Carbonyldiphthalic anhydride

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View
Size/SKUAvailabilityPrice
100 g

Available to ship TODAY

$59.40
500 g

Available to ship TODAY

$155.00
$116.25
5 kg

Available to ship TODAYfromMILWAUKEE

$776.00

About This Item

Empirical Formula (Hill Notation):
C17H6O7
CAS Number:
Molecular Weight:
322.23
UNSPSC Code:
12162002
NACRES:
NA.23
PubChem Substance ID:
EC Number:
219-348-1
Beilstein/REAXYS Number:
761777
MDL number:

$59.40


Available to ship TODAYDetails


​
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist


vapor density

1.4 (vs air)

Quality Segment

vapor pressure

<0.1 mmHg ( 0 °C)

assay

98%

form

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

General description

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.

Application

Used in the synthesis of polyimides.

Compare Similar Items

View Full Comparison

Show Differences

1 of 1

This Item
463310524492178586
description

98%

description

97%

description

97%

description

99%

assay

98%

assay

97%

assay

97%

assay

99%

mp

218-222 °C (lit.)

mp

299-305 °C (lit.)

mp

225-229 °C (lit.)

mp

>300 °C (lit.)

form

powder

form

-

form

-

form

liquid

vapor density

1.4 (vs air)

vapor density

-

vapor density

-

vapor density

-

expl. lim.

16 %

expl. lim.

-

expl. lim.

-

expl. lim.

-

Quality Level

200

Quality Level

100

Quality Level

100

Quality Level

100


Pictograms

Exclamation mark

Signal Word

Warning

Hazard Codes

Hazard Classifications

Eye Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class

11 - Combustible Solids

WGK

WGK 1

PPE (personal protective equipment)

dust mask type N95 (US), Eyeshields, Gloves



Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library



Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

Reviews

No rating value

Active Filters