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Tetrahydrophthalic anhydride THPA CAS 85-43-8

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CAS No.:

85-43-8

Grade:

Industrial Grade

Content:

99.5%

Port:

Dalian

Packaging:

1000kgs, 5000kgs, 25kgs in PE bag

Price valid (until):

2025-08-15

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Hangzhou Zentra Bio-Chemical Co., Ltd.

Company Type:

Trader

Location:

China

Qualification:

Main Products:

pharmaceutical intermediates,excipients,plant extracts,food additives,CDMO,fine cheimcals

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Product Description
Seller Information
Inquiry History

Description

Product Detail

samples available

we are capable of:

1) quick quotation, normally within 1-2 days

2) full marketing research

3) price control and quality(regulatory) control

4) all stage support from sample, pilot, registration and commercial

5) sourcing for prodcut which is very new or hard to find

6) CMO/CDMO, from pilot-scale development to industrial-scale manufacturing

Why Us

Supplier, distributor & marketer of chemicals with >20 yrs of experience, with Integrated sourcing solutions

Wide product range, We can source any fine chemical you require, unlimited range, including intermediates and products for agrochemicals, cosmetics, APIs, nanotechnology, additives, flavors, fragrances, photography, plant extracts, electronics industries and more

We can solve your sourcing problems through our own or third party manufacturing in the most transparent way

Through selected pre-qualified partners under exclusive arrangements, we offer Contract manufacturing and custom synthesis, Kilo to Multi-ton scale production

Items	Specifications

Certificates

Basic Info

Product Name:

1,2,3,6-Tetrahydrophthalic anhydride

Other Name:

1,3-Isobenzofurandione,3a,4,7,7a-tetrahydro-;4-Cyclohexene-1,2-dicarboxylic anhydride;3a,4,7,7a-Tetrahydro-1,3-isobenzofurandione;Maleic anhydride-butadiene adduct;Δ4-Tetrahydrophthalic anhydride;1,2,3,6-Tetrahydrophthalic anhydride;Tetrahydrophthalic anhydride;Tetrahydrophthalic acid anhydride;4-Cyclohexene-1,2-dicarboxylic acid anhydride;1,2,3,6-Tetrahydrophthalic acid anhydride;Rikacid TH;Cyclohexene-4,5-dicarboxylic anhydride;Rikacid THPA;NSC 82642;KBH 1098;HK 019;B 570H;THPA;Epiclon B 570H;Tetrahydroisobenzofuran-1,3-dione;1,3,3a,4,7,7a-Hexahydro-2-benzofuran-1,3-dione;Anhydride 70;27936-16-9;57570-09-9;1312159-69-5;1431295-16-7;2377923-09-4

CAS No.:

85-43-8

UN No.:

2698

Molecular Formula:

C8H8O3

InChIKeys:

InChIKey=KMOUUZVZFBCRAM-UHFFFAOYSA-N

Molecular Weight:

152.147

Exact Mass:

152.15

EC Number:

201-605-4

ICSC Number:

1372

NSC Number:

292900|82642

UN Number:

1760|2698

DSSTox ID:

DTXSID3026516|DTXSID1058713

Color/Form:

White crystalline powder

Categories:

Characteristics

PSA:

43.37

XLogP3:

0.6522

Appearance:

White crystal powder

Density:

1.20 g/cm³ @ Temp: 105 °C

Melting Point:

102 °C

Boiling Point:

195 °C @ Press: 50 Torr

Flash Point:

157°C

Refractive Index:

1.529

Water Solubility:

Solubility in water: reaction

Storage Conditions:

Treasury ventilation low temperature drying, and oxidants, amine stored separately

Vapor Pressure:

Vapour pressure, Pa at 20°C: 1

Vapor Density:

Relative vapour density (air = 1): 5.3

Henrys Law Constant:

Henry's Law constant = 1.89X10-5 atm-cu m/mole at 25 °C (est)

Experimental Properties:

LEAVES; MP: 128 °C; DECOMP IN HOT WATER; VERY SOL IN ALC, BENZENE; SPECIFIC OPTICAL ROTATION: +6.6 DEG @ 25 °C/D (IN ALCOHOL) /TETRAHYDROPHTHALIC ANHYDRIDE (TRANS, D)/|CRYSTALS FROM BENZENE & CARBON TETRACHLORIDE; MP: 141 °C; DECOMP IN HOT WATER; SOL IN BENZENE, ALC, CHLOROFORM /TETRAHYDROPHTHALIC ANHYDRIDE (TRANS, DL)/|Solidification point: 99-101 °C|Hydroxyl radical reaction rate constant = 6X10-11 cu cm/molecule-sec at 25 °C (est)

Air and Water Reactions:

Reacts exothermically with water to form memtetrahydrophthalic acid.

Reactive Group:

Hydrocarbons, Aliphatic Unsaturated

Reactivity Alerts:

Water-Reactive

Reactivity Profile:

MEMTETRAHYDROPHTHALIC ANHYDRIDE is combustible. Reacts with oxidizers. Reacts exothermically with water. These reactions are usually slow, but can become violent when local heating accelerates their rate. Acids accelerate the reaction with water. Incompatible with acids, strong oxidizing agents, alcohols, amines, and bases.

Autoignition Temperature:

450 °C

See More 1,2,3,6-Tetrahydrophthalic anhydride Properties 

Hazard Identification

Classification of the substance or mixture

Serious eye damage, Category 1

Skin sensitization, Category 1

Respiratory sensitization, Category 1

Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 3

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 H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled H412 Harmful to aquatic life with long lasting effects
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. P284 [In case of inadequate ventilation] wear respiratory protection. P273 Avoid release to the environment.
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. P342+P316 If experiencing respiratory symptoms: Get emergency medical help immediately.
Storage	none
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. 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

Separated from food and feedstuffs. Dry. Well closed.Separated from food and feedstuffs. Dry. Well closed.

See More 1,2,3,6-Tetrahydrophthalic anhydride Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
pharmaceutical intermediates,excipients,plant extracts,food additives,CDMO,fine cheimcals

Location:
Rm 301, Bld 2, Taohuahu Neighborhood Center, Hangzhou, China

Payment Terms:
TT against copy of documents,D/P,L/C,D/A,100% TT in advance

Average lead Time:
14

Total Employees:
5-10

Year of Establishment:
2025

Zentra Chemical, headquartered in Hangzhou, China, is aiming to be a global leader in chemical trading and integrated solutions.

Specializing in Pharmaceutical intermediates, Agrochemical intermediates, Fine chemicals, and Cosmetic ingredients, we deliver end-to-end services spanning sourcing, supply chain optimization, customized synthesis, cost management, and quality assurance.

Our mission is to empower clients worldwide with agile, sustainable, and value-driven partnerships in the ever-evolving chemical industry.

Why us

Supplier, distributor & marketer of chemicals with >20 yrs of experience, with Integrated sourcing solutions.

Wide product range , We can source any fine chemical you require, unlimited range, including intermediates and products for agrochemicals, cosmetics, APIs, nanotechnology, additives, flavors, fragrances, photography, plant extracts, electronics industries and more.

We can solve your sourcing problems through our own or third party manufacturing in the most transparent way.

We supply all stage support from sample, pilot, registration and commercial.

Through selected pre-qualified partners under exclusive arrangements, we offer Contract manufacturing and custom synthesis , Kilo to Multi-ton scale production.

Capability

with hundreds of local manufacturers(pre-qualified), we are capable of:

1) quick quotation, normally within 1-2 days;

2) full marketing research;

3) price control and quality(regulatory) control;

4) all stage support from sample, pilot, registration and commercial;

5) sourcing for prodcut which is very new or hard to find;

6) CMO/CDMO, from pilot-scale development to industrial-scale manufacturing.

Inquiry History

2 Inquiries

Country	Product	Purchase Quantity	Date Posted
India	THPA	1 MT	Apr 22, 2024
India	1,2,3,6-Tetrahydrophthalic anhydride	500 KG	Jul 8, 2023

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Tetrahydrophthalic anhydride THPA CAS 85-43-8

Product Description

Seller Information