Tetrahydrophthalsureanhydrid Price — China Factory EXW 2026

Tetrahydrophthalsureanhydrid price Spec: China national standards

China EXW, VAT excluded

Newest China EXW USD 1,471.97 / MT · VAT excluded +746.3097 (103.00%) as of 20210323

Newest Price 1,471.97

Price Date 20210323

Day's Change +746.31

Day's Range 1,471.97 - 2,218.28

Month's Change +705.02

Month's Range 1,471.97 - 2,176.99

Year's Change +210.91

Year's Range 1,471.97 - 1,261.06

The electronics application is a bright spot, but don't overlook the impact of China's push for biodegradable plastics. THPA can be used as an intermediate in producing certain bio...

Also known as cis-1,2,3,6-Tetrahydrophthalic anhydride, 1,2,3,6-Tetrahydro phthalic anhydride (THPA), 1,2,3,6-tetrahydrophthalicanhydride[qr], 1,3-Isobenzofurandione, 3a,4,7,7a-tetrahydro-

Opinions

What are the key application trends for cis-1,2,3,6-tetrahydrophthalic anhydride?

The electronics application is a bright spot, but don't overlook the impact of China's push for biodegradable plastics. THPA can be used as an intermediate in producing certain biodegradable polyesters. If PBAT/PBS capacity ramps up as planned, it could create unexpected demand pull for maleic anhydride derivatives, indirectly supporting THPA prices.

Tetrahydrophthalsureanhydrid price context

What drives Tetrahydrophthalsureanhydrid prices

What are the key application trends for cis-1,2,3,6-tetrahydrophthalic anhydride?: The electronics application is a bright spot, but don't overlook the impact of China's push for biodegradable plastics. THPA can be used as an intermediate in p...

How we assess Tetrahydrophthalsureanhydrid price

China factory / mainstream market EXW quotes (VAT excluded where shown) - not a single global public index

Regional and specification detail so buyers can compare like-for-like grades

Landed cost figures from our calculator are planning estimates, not a customs ruling

Overview

cis-1,2,3,6-Tetrahydrophthalic anhydride (CAS 935-79-5) is a white crystalline solid with a melting point of 101–102°C and limited water solubility. It is a maleic anhydride derivative used primarily as an organic synthesis intermediate in resin and coating applications.

Industrial: a key intermediate in the production of alkyd and unsaturated polyester resins, as well as epoxy resin curing agents.
Coatings: used to modify resin properties in paint and surface-coating formulations.
Electrical & electronics: applied in insulating materials and electrical equipment components.
Chemical synthesis: serves as a building block for specialty chemicals and agrochemical intermediates.

China's production landscape is tied to the broader maleic anhydride derivative sector, which has seen capacity growth driven by downstream demand from coatings, wind power, and electronics. Domestic output is largely consumed locally, with trade flows influenced by regional supply hubs in East and South China.

Key domestic producers:
Wanhua Chemical – integrated maleic anhydride and downstream derivative operations.
Qixiang Tengda – major maleic anhydride producer with derivative capacity.
Hengli Petrochemical – operates large-scale maleic anhydride units for downstream materials.

Properties

Name

Tetrahydrophthalsureanhydrid

cis-1,2,3,6-Tetrahydrophthalic anhydride

1,2,3,6-Tetrahydro phthalic anhydride (THPA)

1,2,3,6-tetrahydrophthalicanhydride[qr]

1,3-Isobenzofurandione, 3a,4,7,7a-tetrahydro-

CAS Number

935-79-5

EINECS No.

201-605-4

Risk Codes

S26;S36/37/39

Safety Description

R41;R42/43;R52/53

HS Code

2917201000

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