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BTDA CAS 2421-28-5

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CAS No.:

2421-28-5

Port:

上海

Packaging:

100KG/bag

Price valid (until):

2025-06-06

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Shanghai Fanbiao Textile Technology Co., Ltd.

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Location:

China

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Chemical

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Product Description
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Inquiry History

Description

2421-28-5 – Names and Identifiers

Name	3,3′,4,4′-Benzophenonetetracarboxylic dianhydride
Synonyms	BTDA 4,4-Carbonyldiphthalic anhydride 4,4′-Diphthalic anhydride ketone 4,4′-Carbonylbis[phthalic anhydride] 5,5′-carbonylbis-3-isobenzofurandione 3-Isobenzofurandione,5,5′-carbonylbis-1 5,5′-carbonylbis(2-benzofuran-1,3-dione) 1,3-Isobenzofurandione, 5,5′-carbonylbis- 3,3′,4,4′-Tetracarboxybenzophenone dianhydride 3,3,4,4-Benzophenontetracarbonsaeuredianhydrid, Benzophenone-3,3?4,4?tetracarboxylic dianhydride 3,3′,4,4′-Benzophenonetetracarboxylicdianhydride 3,3′,4,4′-Benzophenonetetracarboxylic dianhydride 3,3′,4,4′-Benzophenone tetracarboxylic dianhydride 3,3′,4,4′-benzophenonetetracarboxylicaciddianhydride 3,3′,4,4′-Benzophenonetetracarboxylic acid dianhydride
CAS	2421-28-5
EINECS	219-348-1
InChI	InChI=1/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

2421-28-5 – Physico-chemical Properties

Molecular Formula	C17H6O7
Molar Mass	322.23
Density	1.662g/cm3
Melting Point	219-226℃
Boling Point	638.8°C at 760 mmHg
Flash Point	286.1°C
Water Solubility	REACTS
Vapor Presure	3.25E-16mmHg at 25°C
Appearance	Odor-free light yellow powder solid
Storage Condition	RT, argon filled storage
Sensitive	Humidity sensitivity
Refractive Index	1.699
MDL	MFCD00005923
Physical and Chemical Properties	BTDA is a tan crystalline powder. The substance has a melting point of 218.67°C and decomposes at 360°C. The autoignition temperature is very high and no flammability is observed. The density of the substance is 1.5452 g/ml and the vapor pressure is 6.53E-011 Pa. The substance is slightly soluble in water, log Pow is 3.3
Use	Benzophenone-3, 3 ‘,4,4’-tetracarboxylic dianhydride (BTDA) is used in the industrial field as an intermediate and in polycondensation (fiber and powder production) for the manufacture of plastic products or fine chemicals. Since BTDA is only manufactured and handled in the closed conditions of an industrial environment, the consumer risk is minimal. The environmental impact, Ecotoxicology and toxicology information available for BTDA is provided based on research and/or a reliable assessment of its hazard profile.

2421-28-5 – Risk and Safety

Hazard Symbols	Xi – Irritant
Risk Codes	R36/37 – Irritating to eyes and respiratory system.
Safety Description	S25 – Avoid contact with eyes.

2421-28-5 – Upstream Downstream Industry

Raw Materials	Acetone
Downstream Products	2-Hydroxyethyl methacrylate

2421-28-5 – Introduction

Reacts with water and dissolves in DMF(1G/10ML).

2421-28-5 – Nature

melting point	218-222°C (lit.)
boiling point	320°C 5mm
density	1,57 g/cm3
vapor density	1.4 (vs air)
Vapor pressure	<0.1mm Hg ( 0 °C)
refractive index	1.6380 (estimate)
flash point	324 °C
storage conditions	Inert atmosphere,Room Temperature
solubility	DMF: 0.1 g/mL, clear
morphology	Needles or Crystalline Powder
color	Off-white to brown
explosion limit value (explosive limit)	16%
water solubility	REACTS
maximum wavelength (& lambda;max)	580nm(CH3CN)(lit.)
sensitivity	Moisture Sensitive
sublimation point	220-230 °C
BRN	761777
InChIKey	VQVIHDPBMFABCQ-UHFFFAOYSA-N
NIST chemical information	Bis-(3-phthalyl anhydride) ketone(2421-28-5)
EPA chemical information	Benzophenonetetracarboxylic dianhydride (2421-28-5)

2421-28-5 – MSDS

ACROS	English
SigmaAldrich	English
ALFA	Chinese
ALFA	English

2421-28-5 – Uses and synthesis methods

Introduction	Benzophenone-3, 3 ‘,4,4’-tetracarboxylic dianhydride (BTDA) is used as an intermediate and polycondensation (fiber and powder production) in the industrial field to make plastic products or fine chemicals. Since BTDA is only manufactured and handled under closed conditions in an industrial environment, the consumer risk is minimal. The environmental impact, ecotoxicology and toxicology information available to BTDA is provided based on research and/or reliable assessment of its hazard characteristics.
physical and chemical properties	BTDA is a brown crystalline powder. The substance has a melting point of 218.67°C and decomposes at 360°C. The autoignition temperature is very high and no flammability is observed. The density of the substance is 1.5452 g/ml and the vapor pressure is 6.53E-011 Pa. The substance is slightly soluble in water, log Pow is 3.3.
application	BTDA is used in the industrial sector as an intermediate in the manufacture of plastic products or fine chemicals.
health hazards	BTDA has no acute toxicity through oral and inhalation routes or skin contact. The substance irritates the eyes and respiratory tract. BTDA is sensitive to skin. BTDA is not mutagenic. BTDA is used as an intermediate and polycondensed with BTDA (fiber and powder production) to manufacture plastic products or fine chemicals in the industrial field. The use of BTDA includes the use in closed systems and mixing and mixing in batch processes, as well as the transfer or transfer of substances from containers or large and small containers to containers or large containers.
use	Polymerized monomer, used to synthesize polymeric monomer of high temperature resistant polymer materials.

2421-28-5 – Security information

dangerous goods mark	Xi
hazard category code	36/37
safety instructions	25
WGK Germany	1
F	21
auto-ignition temperature	975 °F
TSCA	Yes
customs code	29183000

Basic Info

Product Name:

Benzophenonetetracarboxylic dianhydride

Other Name:

1,3-Isobenzofurandione,5,5′-carbonylbis-;Phthalic anhydride,4,4′-carbonyldi-;5,5′-Carbonylbis[1,3-isobenzofurandione];Benzophenonetetracarboxylic acid dianhydride;3,4,3′,4′-Benzophenonetetracarboxylic acid anhydride;3,3′,4,4′-Tetracarboxybenzophenone dianhydride;Benzophenonetetracarboxylic dianhydride;4,4′-Carbonylbis(phthalic anhydride);3,4,3′,4′-Benzophenonetetracarboxylic dianhydride;4,4′-Carbonyldiphthalic anhydride;4,4′-Diphthalic anhydride ketone;3,3′,4,4′-Benzophenonetetracarboxylic acid dianhydride;BTDA;3,3′,4,4′-Benzophenonetetracarboxylic dianhydride;Benzophenone-3,3′,4,4′-tetracarboxylic acid anhydride;NSC 78480;3,3′,4,4′-Benzophenonetetracarboxylic anhydride;BTDA-PF;BTDA-UP;101505-15-1;55206-66-1;64308-15-2;65929-27-3;68593-66-8;86442-22-0;160903-84-4;163915-23-9;174612-63-6;1156492-00-0;1189096-76-1

CAS No.:

2421-28-5

Molecular Formula:

C17H6O7

InChIKeys:

InChIKey=VQVIHDPBMFABCQ-UHFFFAOYSA-N

Molecular Weight:

322.23

Exact Mass:

322.23

BRN:

761777

EC Number:

219-348-1

UNII:

Y61GVA8097

NSC Number:

78480

DSSTox ID:

DTXSID3029233

HScode:

29183000

Categories:

Characteristics

PSA:

104

XLogP3:

Appearance:

Off-white to brown Needles or Crystalline Powder

Density:

1.7±0.1 g/cm3

Melting Point:

225-226.5 °C

Boiling Point:

320°C5mm

Flash Point:

324 °C

Refractive Index:

1.700

Water Solubility:

Solubility in water: reaction.DMF: 0.1 g/mL, clear

Storage Conditions:

Store in a tightly closed container. Store protected from moisture. Store under nitrogen. Store in a cool, dry area away from incompatible substances.

Vapor Pressure:

<0.1 mm Hg ( 0 °C)

Vapor Density:

1.4 (vs air)

Explosive limit:

16%

See More Benzophenonetetracarboxylic dianhydride Properties 

Hazard Identification

Classification of the substance or mixture

Eye irritation, Category 2

Specific target organ toxicity â single exposure, Category 3

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Warning
Hazard statement(s)	H319 Causes serious eye irritation H335 May cause respiratory irritation
Prevention	P264 Wash ... thoroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area.
Response	P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P319 Get medical help if you feel unwell.
Storage	P403+P233 Store in a well-ventilated place. Keep container tightly closed. P405 Store locked up.
Disposal	P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

See More Benzophenonetetracarboxylic dianhydride Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
Chemical

Location:
Room 1833, Building D, No. 4299, Jindu Road, Minhang District, Shanghai

Year of Establishment:
2006

Inquiry History

3 Inquiries

Country	Product	Purchase Quantity	Date Posted
Russia	Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride	4.40 KG	Sep 28, 2023
United States	3,3’4,4’-Benzophenonetetracarboxylic dianhydride	5000 KG	Nov 22, 2023
Russia	5-Norbornene-2,3-dicarboxylic Anhydride	2.30 KG	Sep 28, 2023

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