Description Uses Physical properties Health Hazard Environmental effects
ChemicalBook > CAS DataBase List > 3,3',4,4'-Benzophenonetetracarboxylic dianhydride

3,3',4,4'-Benzophenonetetracarboxylic dianhydride

Description Uses Physical properties Health Hazard Environmental effects
Product Name
3,3',4,4'-Benzophenonetetracarboxylic dianhydride
CAS No.
2421-28-5
Chemical Name
3,3',4,4'-Benzophenonetetracarboxylic dianhydride
Synonyms
BTDA;NOTAVAILABLE;5,5'-Carbonylbis(isobenzofuran-1,3-dione);5,5'-Carbonylbis;LABOTEST-BB LT02097910;4,4'-Diphthalic anhydride ketone;4,4'-CARBONYLDIPHTHALIC ANHYDRIDE;Bis-(3-phthalyl anhydride) ketone;3,3',4,4'-BenzophenonetetracarboxyL;4,4'-Carbonylbis[phthalic anhydride]
CBNumber
CB5164853
Molecular Formula
C17H6O7
Formula Weight
322.23
MOL File
2421-28-5.mol
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3,3',4,4'-Benzophenonetetracarboxylic dianhydride Property

Melting point:
218-222 °C (lit.)
Boiling point:
320°C 5mm
Density 
1,57 g/cm3
vapor density 
1.4 (vs air)
vapor pressure 
<0.1 mm Hg ( 0 °C)
refractive index 
1.6380 (estimate)
Flash point:
324 °C
storage temp. 
Inert atmosphere,Room Temperature
solubility 
DMF: 0.1 g/mL, clear
form 
Needles or Crystalline Powder
color 
Off-white to brown
explosive limit
16%
Water Solubility 
REACTS
Sensitive 
Moisture Sensitive
λmax
580nm(CH3CN)(lit.)
Sublimation 
220-230 ºC
BRN 
761777
Stability:
Hygroscopic
InChIKey
VQVIHDPBMFABCQ-UHFFFAOYSA-N
LogP
3.3 at 25℃
NIST Chemistry Reference
Bis-(3-phthalyl anhydride) ketone(2421-28-5)
EPA Substance Registry System
Benzophenonetetracarboxylic dianhydride (2421-28-5)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37
Safety Statements 
25
WGK Germany 
1
F 
21
Autoignition Temperature
975 °F
TSCA 
Yes
HS Code 
29183000
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
262463
Product name
Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride
Purity
purified by sublimation, 96%
Packaging
25g
Price
$277
Updated
2023/06/20
TCI Chemical
Product number
B0948
Product name
3,3',4,4'-Benzophenonetetracarboxylic Dianhydride
Purity
>96.0%(T)
Packaging
25g
Price
$53
Updated
2024/03/01
TCI Chemical
Product number
B0948
Product name
3,3',4,4'-Benzophenonetetracarboxylic Dianhydride
Purity
>96.0%(T)
Packaging
100g
Price
$135
Updated
2024/03/01
Alfa Aesar
Product number
A16529
Product name
3,3',4,4'-Benzophenonetetracarboxylic dianhydride, 97+%
Packaging
100g
Price
$38.4
Updated
2024/03/01
Alfa Aesar
Product number
A16529
Product name
3,3',4,4'-Benzophenonetetracarboxylic dianhydride, 97+%
Packaging
2.5kg
Price
$363
Updated
2024/03/01
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3,3',4,4'-Benzophenonetetracarboxylic dianhydride Chemical Properties,Usage,Production

Description

Benzophenone-3,3',4, 4'-tetracarboxylic dianhydride (BTDA) is used as intermediate and in polycondensation (fiber and powder production) to manufacture plastic products or fine chemicals in the industrial sector. Consumer risk is very unlikely as BTDA is manufactured and handled under closed conditions in industrial settings only. The environmental effects, ecotoxicology and toxicology information available for BTDA is provided based on studies and/or a reliable evaluation of its hazardous properties.

Uses

BTDA is used as intermediate in the manufacture of plastic products or fine chemicals in the industrial sector. 

Physical properties

BTDA is a tan-colored crystalline powder. The substance has a melting point of 218.67 °C and shows decomposition at 360 °C. The auto-ignition temperature is very high and no flammability is observed. The substance has a density of 1.5452 g/ml and a vapor pressure of 6.53E-011 Pa. The substance is slightly water soluble and has a log Pow of 3.3.

Health Hazard

BTDA has no acute toxicity by oral and inhalative route or by dermal exposure. The substance is irritating to eyes and the respiratory tract. BTDA is sensitizing to skin. BTDA is not mutagenic.

Environmental effects

Based on available data for the substance, BTDA is harmful to aquatic organisms with long lasting effects. The substance is not readily biodegradable and is not considered to have potential to bioaccumulate.BTDA is industrially used as monomer to manufacture the rmoplastics or another substance. The manufacture and handling is a closed process, thus only very limited exposure to the environment is expected. Any exposure from manufacture or use will generally be below the level of concern.

Chemical Properties

white crystall powder

Uses

Used in the synthesis of polyimides.

Uses

BTDA polymer fine free-flowing powder suitable for general purposes. BTDA Microfine Micronized powder facilitates mixing in epoxy resins. BTDA ultrapure high-purity, high-assay powder for critical polyimide synthesis.

Uses

BTDA is important monomer of polyimide, and used for production of polyimide material.

Application

3,3',4,4'-Benzophenonetetracarboxylic dianhydride (BTDA) is used for:
(1) Synthesis of polyimides
(2) Preparation of cellulose acetate (AC) hydrogels
(3) Curing epoxy powder coatings
(4) Preparation of nanocomposite films
(5) BTDA-formed polyimide/copolymer as dielectric layer for high-performance OFET memory devices

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.

Flammability and Explosibility

Non flammable

Purification Methods

The main impurity is the free acid formed by hydrolysis (check for OH bands in the IR). This can be converted to the dianhydride by treating with Ac2O (molar ratio of 4 to 1 of acid), heating at 110-120o for 1.5 to 2hours, cooling to 0—5o and collecting the dianhydride. This is then dissolved in hot dioxane or Me2CO, filtered and cooled to 10—15o. The moisture sensitive solid is collected and dried at 120—130o in vacuo. It has been sublimed at high vacuum. [Faberov et al. J Org Chem USSR 4 153 (English translation) 1968.]

3,3',4,4'-Benzophenonetetracarboxylic dianhydride Preparation Products And Raw materials

Raw materials

Acetone

Preparation Products

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3,3',4,4'-Benzophenonetetracarboxylic dianhydride Suppliers

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View Lastest Price from 3,3',4,4'-Benzophenonetetracarboxylic dianhydride manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
BTDA 2421-28-5
Price
US $10.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20ton
Release date
2024-05-30
Wuhan Circle Star Chem-medical Technology Co.,Ltd
Product
3,3',4,4'-Benzophenonetetracarboxylic dianhydride 2421-28-5
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
98
Supply Ability
1000
Release date
2025-01-21
Hebei Mujin Biotechnology Co.,Ltd
Product
BTDA 2421-28-5
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
50000KG/month
Release date
2023-11-29

2421-28-5, 3,3',4,4'-Benzophenonetetracarboxylic dianhydrideRelated Search:

Benzoic anhydride Trifluoromethanesulfonic anhydride Benzophenone oxime Isatoic Anhydride Benzophenone Phthalic anhydride CIS-BUTENEDIOIC ANHYDRIDE Benzophenone hydrazone 4,4'-Oxydiphthalic anhydride Succinic anhydride Glutaric anhydride 4-Methylbenzophenone p-Toluic acid Methyl 3-formylbenzoate 3-ACETYLBENZOIC ACID 3-BENZOYLBENZOIC ACID 4-Ethylbenzoic acid Acetic anhydride

  • 1,3-Isobenzofurandione, 5,5'-carbonylbis-
  • 3,3',4,4'-Benzophenonetetracarboxylic acid dianhydride
  • 3,3',4,4'-Tetracarboxybenzophenone dianhydride
  • 3,3’,4,4’-benzophenonetetracarboxylicaciddianhydride
  • BENZOPHENONETETRACARBOXYLIC ACID DIANHYDRIDE
  • BENZOPHENONE-TETRACARBOXYLIC-DIANHYDRIDE
  • BTDA~4,4-Carbonyldiphthalic anhydride
  • 3,3',4,4'-BENZOPHENONETETRACARBOXYLIC DI ANHYDRIDE, SUBLIMED, 98%
  • 3,3',4,4'-BENZOPHENONETETRACARBOXYLIC DI
  • 3,3',4,4'-Benzophenonetetracarboxylic dianhydride, 97+%
  • BENZOPHENONE-3,3'',4,4''-TETRACARBOXYLIC DIANHYDRIDE (BTDA)
  • 3,3'',4,4''-BENZOPHENONETETRACARBOXYLIC DIANHYDRIDE 98%
  • 5,5-Carbonylbis(1,3-isobenzofurandione)
  • benzophenone-3,3',4,4'-tetracarboxylic dianhydride 4,4'-carbonyldi(phthalic anhydride)
  • 3,3',4,4'-Benzophenonetetracarboxylic dianhydride ,99.5%
  • 3,3',4,4'-Benzophenonetetracarboxylic dianhydride, 98+%
  • 5-(1,3-Dioxo2-benzofuran-5-carbonyl)-2-benzofuran-1,3-dione
  • 3,3',4,4'-Benzophenonetetracarboxylic dianhydride ,99%
  • 4,4'-Carbonylbis(benzene-1,2-dicarboxylic acid)1,2:1',2'-dianhydride
  • 5,5'-Carbonylbis(isobenzofuran-1,3-dione)
  • 3,3',4,4'-Benzophenonetetracarboxylic dianhydride,96%
  • 3,3',4,4'-Benzophenonetetracarboxylic dianhydride, reagent grade
  • 4,4'-Carbonyldiphthalic Anhydride (BTDA)
  • 3-Isobenzofurandione,5,5’-carbonylbis-1
  • 4,4'-Carbonylbis[phthalic anhydride]
  • 4,4'-Diphthalic anhydride ketone
  • 5,5’-carbonylbis-3-isobenzofurandione
  • 4,4'-CARBONYLDIPHTHALIC ANHYDRIDE
  • 3,3',4,4'-BENZOPHENONETETRACARBOXYLIC DIANHYDRIDE
  • Benzophenonetetracarboxylic acid anhydride
  • Benzophenonetetracarboxylic anhydride
  • NOTAVAILABLE
  • Phthalic anhydride, 4,4'-carbonyldi-
  • LABOTEST-BB LT02097910
  • BTDA
  • 3,3',4,4'- twophenyl ketonefourtwo acidanhydride
  • Benzophenone-3,3',4,4'-tetracarboxylic dianhydride 96%
  • 3,3',4,4'-Benzophenonetetracarboxylic Dianhydride (purified by sublimation)
  • 3,3'4,4'-Benzophenonetetracarboxylic dianhydride (BTDA)
  • 3,3',4,4'-Benzophenonetetracarboxylic Dianhydride &gt
  • 3,3',4,4'-Benzophenonetetracarboxylic Dianhydride (purified by sublimation)&gt
  • 3,3',4,4'-Benzophenonetetracarboxylic dianhydride, 99.5%, reagent grade
  • 3,3',4,4'-BenzophenonetetracarboxyL
  • 3,3',4,4'-BENZOPHENONETETRACARBOXYLIC DIANHYDRIDE 2421-28-5
  • 3,3',4,4'-Benzophenonetetracarboxylic dianhydride ISO 9001：2015 REACH
  • 3,3',4,4'-Benzophenonetetracraboxylic Dianhydride
  • Factory supply BTDA CAS 2421-28-5 with purity 99%
  • Benzophenon-3,3':4,4'-tetracarbonsaeuredianhydrid
  • 3,3'4,4' -benzophenone tetracarboxylic anhydride
  • Bis-(3-phthalyl anhydride) ketone
  • 3,3 ', 4,4' - Diphenylketone tetraacetic anhydride
  • 3,3',4,4' -diphenylketetracoic anhydride
  • 3,3',4,4'-Benzophenonetetracarboxylicdianhydride
  • 5,5'-Carbonylbis
  • 3,3',4,4'-Benzophenonetetracarboxylic dianhydride(BTDA)
  • Benzophenone-3,3',4,4'-tetracarboxylic dianhydride
  • 4,4'-CARBONYLBIS(PHTHALIC ANHYDRIDE)
  • 3,3'4,4'-Benzophenonetetracarboxylic dianhydride (s-BTDA)