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Trimellitic Anhydride C9H4O5 552-30-7

Name: Trimellitic Anhydride C9H4O5 552-30-7
Brand: Orient
SKU: pr2511241196
Price: 2 USD
Availability: InStock

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CAS No.:

552-30-7

Grade:

Industrial Grade

Content:

97%

Port:

shanghai

Brand:

Orient

Packaging:

25kg/bag,500kg/bag, customized

Price valid (until):

2025-12-24

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Qingdao Orient Chemical Co.,LTD

Company Type:

Trader

Location:

China

Qualification:

Main Products:

pharmaceutical intermediates,peptides,electronic chemicals

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Product Description
Seller Information
Inquiry History

Description

Trimellitic Anhydride Basic information

Product Name:	Trimellitic Anhydride
Synonyms:	1,2,4-Benzenetricarboxylic acid anhydride;1,2,4-Benzenetricarboxylic acid anhydride-1,2;1,2,4-Benzenetricarboxylic acid, cyclic 1,2-anhydride;1,2,4-benzenetricarboxylicacid,cyclic1,2-anhydride;1,2,4-benzenetricarboxylicacidanhydride;1,3-dihydro-1,3-dixoxo-5-isobenzofurancarboxylic acid;benzene-1,2,4-tricarboxylic acid 1,2-anhydride trimellitic anhydride;BENZENE-1,3,4-TRICARBOXYLICANHYDRIDE
CAS:	552-30-7
MF:	C9H4O5
MW:	192.13
EINECS:	209-008-0
Product Categories:	fine chemicals;pharmaceutical raw material;Pyridines;Fluorenes, etc. (reagent for high-performance polymer research);Functional Materials;Reagent for High-Performance Polymer Research;Industrial/Fine Chemicals;addictives;bc0001;552-30-7
Mol File:	552-30-7.mol

Trimellitic Anhydride Chemical Properties

Melting point	163-166 °C (lit.)
Boiling point	390 °C
density	1.54
vapor density	6.6 (vs air)
vapor pressure	<0.01 mm Hg ( 20 °C)
refractive index	1.4717 (estimate)
Fp	227 °C
storage temp.	Store below +30°C.
solubility	24.4g/l (decomposition)
pka	3.11±0.20(Predicted)
form	Flakes
color	White to off-white
PH	2 (21g/l, H2O, 20℃)
explosive limit	1-7%(V)
Water Solubility	DECOMPOSES
Sensitive	Moisture Sensitive
Merck	14,9703
BRN	9394
Exposure limits	ACGIH: TWA 0.0005 mg/m3; STEL 0.002 mg/m3 (Skin) NIOSH: TWA 0.005 ppm(0.04 mg/m3)
Stability:	Stable. Moisture sensitive.
InChIKey	SRPWOOOHEPICQU-UHFFFAOYSA-N
LogP	0.06-0.54 at 20℃
CAS DataBase Reference	552-30-7(CAS DataBase Reference)
NIST Chemistry Reference	Trimellitic anhydride(552-30-7)
EPA Substance Registry System	Trimellitic anhydride (552-30-7)

Safety Information

Hazard Codes	Xn
Risk Statements	37-41-42/43
Safety Statements	22-26-36/37/39
OEB	D
OEL	TWA: 0.005 ppm (0.04 mg/m3) Should be handled in the workplace as an extremely toxic substance.
WGK Germany	1
RTECS	DC2050000
F	10-21
TSCA	Yes
HS Code	29173980
Hazardous Substances Data	552-30-7(Hazardous Substances Data)
Toxicity	LD50 orally in Rabbit: > 2730 mg/kg LD50 dermal Rabbit 23000 mg/kg

Trimellitic Anhydride Usage And Synthesis

Chemical Properties	Trimellitic anhydride is a white powder or flakes. It is the anhydride of trimellitic acid (1,2,4-benzenetricarboxylic acid). It is soluble in water, ethanol, acetone and other general organic solvents.
Uses	Trimellitic Anhydride is mainly used as raw material for polyester resin,polyimide resin,plasticizer TOTM ,and also be used for producing heatproof & insulating,adhesive,surfactant, paint,synthesize dye materials etc. Trimellitic anhydride is used as an embossing agent for vinyl flooring and as a curing agent for epoxy resins. It is also used as an intermediate for the synthesis of surface coatings chemicals, adhesives, polymers, dyes printing inks, pharmaceuticals .
Uses	Trimellitic anhydride is mainly applied to produce good heat-proof, weather-proof and solvent-proof trimellitate plasticizers, among which the most popular product is tri(2-ethylhexyl)trimellitate. It is also used to synthesize polyester resins.TMA can also be applied to curing agent of epoxy resins.
Definition	ChEBI: Trimellitic anhydride is a 2-benzofuran compound having oxo groups at the 1- and 3-positions and a carboxy substituent at the 5-position; the cyclic anhydride formed from the carboxy groups at the 1- and 2-positions of trimellitic acid. It has a role as an epitope, an allergen and a hapten. It is a cyclic dicarboxylic anhydride, a dioxo monocarboxylic acid and a member of 2-benzofurans. It is functionally related to a phthalic anhydride and a trimellitic acid.
General Description	1,2,4-Benzenetricarboxylic anhydride(TA) is a hydrophilic monomer with multipurpose usage; as a curing agent for epoxy based resins and as a plasticizer for polyvinyl chloride(PVC).
Air & Water Reactions	Sensitive to moisture. Hydrolyzes slowly. Solutions in water or alcohol may be unstable. Insoluble in water.
Reactivity Profile	1,2,4-Benzenetricarboxylic anhydride reacts exothermically with water. This reaction is expected to be slow, but can become vigorous if local heating accelerates it. Reaction with water is accelerated by acids. Incompatible with acids, strong oxidizing agents, alcohols, amines, and bases. Incompatible with strong oxidizing agents, strong acids or strong bases. .

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—— Q&A ——

Q1:Do you provide sample?

A: Yes, we can provide free sample, you only need pay the shipping cost.

Q2: What is the lead time?

A: For stock goods, it usually take about 5-7 days by air, 15-30 days by sea,For customized products, the delivery time needs to be confirmed based on the actual situation.

Q3: How can I buy? What is the payment method?

A: You can contract us through Email or you can browse our website:orientchem.cc, we have bank transfer, cryptocurrency, etc.

Q4:What if there are quality issues？

A：We attach great importance to after-sales service of our products. If there are any quality issues, please contact us within 30 days of receiving the goods and we will handle returns and exchanges for you.

Certificates

Basic Info

Product Name:

Trimellitic anhydride

Other Name:

5-Isobenzofurancarboxylic acid,1,3-dihydro-1,3-dioxo-;1,2,4-Benzenetricarboxylic acid,cyclic 1,2-anhydride;Trimellitic acid anhydride;1,2,4-Benzenetricarboxylic acid,anhydride;1,3-Dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid;Anhydrotrimellitic acid;1,3-Dioxo-5-phthalancarboxylic acid;Trimellitic acid 1,2-anhydride;Trimellitic anhydride;1,2,4-Benzenetricarboxylic anhydride;Trimellitic acid cyclic 1,2-anhydride;4-Carboxyphthalic anhydride;Epon 9150;1,2,4-Benzenetricarboxylic acid 1,2-anhydride;NSC 60252;Benzene-1,3,4-tricarboxylic anhydride;TMA (anhydride);TMA;CE-X 23 Medium;Aradur 3380-1;1,3-Dioxo-1,3-dihydroisobenzofuran-5-carboxylic acid;1,3-Dioxo-1,3-dihydro-2-benzofuran-5-carboxylic acid;28605-64-3;68864-89-1;70425-46-6;928770-37-0;2088100-85-8

CAS No.:

552-30-7

Molecular Formula:

C9H4O5

InChIKeys:

InChIKey=SRPWOOOHEPICQU-UHFFFAOYSA-N

Molecular Weight:

192.12500

Exact Mass:

192.13

EC Number:

209-008-0

UNII:

80T61EUU7H

ICSC Number:

0345

NSC Number:

60252

DSSTox ID:

DTXSID7026235

Color/Form:

Crystals|Colorless solid

HScode:

29173980

Categories:

Film-Forming Material

Characteristics

PSA:

80.67000

XLogP3:

0.69540

Appearance:

Crystals or off-white flakes. (NTP, 1992)

Density:

1.54

Melting Point:

161-163.5 °C

Boiling Point:

390 °C

Flash Point:

227ºC

Refractive Index:

1.662

Water Solubility:

Decomposes in water

Storage Conditions:

Store in a cool, dry place. Store in a tightly closed container.

Vapor Pressure:

<0.01 mm Hg ( 20 °C)

Vapor Density:

6.6 (vs air)

Toxicity:

LD50 orally in Rabbit: > 2730 mg/kg LD50 dermal Rabbit 23000 mg/kg

Flammability characteristics:

Combustible Solid

Explosive limit:

Finely dispersed particles form explosive mixtures in air.

Experimental Properties:

Hydrolyzes in aqueous environment to trimellitic acid.|Hydrolysis rate constant of trimellitic anhydride at 25 °C using dimethylacetamide as a solvent: 1X10-4 L/mole-sec|Trimellitic anhydride reacts with acetic acid and water, and is hygroscopic.|Trimellitic anhydride reacts with atmospheric moisture, even at room temperature, to revert to the acid.|For more Other Experimental Properties (Complete) data for TRIMELLITIC ANHYDRIDE (7 total), please visit the HSDB record page.

Air and Water Reactions:

Sensitive to moisture. Hydrolyzes slowly. Solutions in water or alcohol may be unstable. Insoluble in water.

Reactive Group:

Acids, Carboxylic

Reactivity Profile:

TRIMELLITIC ANHYDRIDE reacts exothermically with water. This reaction is expected to be slow, but can become vigorous if local heating accelerates it. Reaction with water is accelerated by acids. Incompatible with acids, strong oxidizing agents, alcohols, amines, and bases. Incompatible with strong oxidizing agents, strong acids or strong bases. (NTP, 1992).

Flammable Limits:

Combustible Solid

Physical Dangers:

Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc.

Heat of Vaporization:

106.2 kJ/mol at 200 °C; 100.4 kJ/mol at 300 °C

Critical Temperature & Pressure:

569 °C at 2968 kPa

See More Trimellitic anhydride Properties 

Hazard Identification

Classification of the substance or mixture

Serious eye damage, Category 1

Skin sensitization, Category 1

Specific target organ toxicity â single exposure, Category 3

Respiratory sensitization, Category 1

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Danger
Hazard statement(s)	H318 Causes serious eye damage H317 May cause an allergic skin reaction H335 May cause respiratory irritation H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
Prevention	P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P272 Contaminated work clothing should not be allowed out of the workplace. P271 Use only outdoors or in a well-ventilated area. P284 [In case of inadequate ventilation] wear respiratory protection.
Response	P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P317 Get medical help. P302+P352 IF ON SKIN: Wash with plenty of water/... P333+P317 If skin irritation or rash occurs: Get medical help. P321 Specific treatment (see ... on this label). P362+P364 Take off contaminated clothing and wash it before reuse. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P319 Get medical help if you feel unwell. P342+P316 If experiencing respiratory symptoms: Get emergency medical help immediately.
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

NO open flames. Prevent build-up of electrostatic charges (e.g., by grounding). Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust. 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

Dry. Separated from bases and strong oxidants. Ventilation along the floor.Dry. Separated from bases and strong oxidants. Ventilation along the floor.

See More Trimellitic anhydride Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
pharmaceutical intermediates,peptides,electronic chemicals

Location:
Room 102, 1st Floor, East Office Building, No. 45 Pengwan Road, Qianwan Bonded Port Area, Qingdao Zone, China (Shandong) Pilot Free Trade Zone

Payment Terms:
100% TT in advance

Average lead Time:
10

Total Annual Revenue:
$10 million-$25 million

Total Employees:
51-100

Year of Establishment:
2024

A reliable supplier is like insurance.

We are mainly specilized in supply of pharmaceutical intermediates, electronic chemicals，food additives, and other fine chemical products.
Integrity is the foundation, quality is life. We would like to work together with you to build a greener and brighter future.

Website: orientchem.cc
Email: scarlett@orientchem.cc
WhatsApp: +86 17753254221

Inquiry History

21 Inquiries

Country	Product	Purchase Quantity	Date Posted
India	Trimellitic Anhydride	1 KG	Nov 30, 2023
Turkey	Trimellitic Anhydride	300 MT	Aug 7, 2023
Mexico	Trimellitic Anhydride (TMA)	100 TON	May 13, 2025
India	trimellitic anhydride	1.00 TON	Jan 21, 2025
India	Trimellitic anhydride	25 KG	Dec 11, 2024
Brazil	Trimellitic Anhydride	20 TON	Oct 28, 2024
India	Trimellitic Anhydide	1 MT	Oct 25, 2024
India	TRI MALETIC ANHYDRIDE	1000 KG	Jul 22, 2024
India	Trimellitic Anhydride	1 MT	Nov 30, 2023
India	Tri Mellitic Anhydride	300 MT	Jun 30, 2025
Poland	Trimellitic anhydride	40 MT	Apr 18, 2025
India	Trimellitic anhydride	100 KG	Dec 17, 2024
India	TRIMELLITIC ANHYDRIDE	1 MT	Oct 16, 2024
South Korea	trimellitic anhydride	3 MT	Oct 11, 2024
South Korea	Trimellitic anhydride	1 20' Fcl	Jul 9, 2024
Slovakia	Trimellitic Anhydride	23 MT	Jul 9, 2024
South Korea	Trimellitic Anhydride	20 MT	May 28, 2024
India	Trimelletic Anhydride	1 20' Fcl	Apr 14, 2026
India	Trimellitic anhydride	1000 KG	Jul 22, 2024
South Korea	TMA (Trimellitic anhydride)	1 20' Fcl	Jul 9, 2024

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Trimellitic Anhydride C9H4O5 552-30-7

Product Description

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