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Home ProductsMethyl Tetrahydrophthalic Anhydride

Acid Anhydride Epoxy And Hardener Mixture Of 3- And 4- Isomers CAS 26590 20 5

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Acid Anhydride Epoxy And Hardener Mixture Of 3- And 4- Isomers CAS 26590 20 5

China Acid Anhydride Epoxy And Hardener Mixture Of 3- And 4- Isomers CAS 26590 20 5 supplier

Large Image :  Acid Anhydride Epoxy And Hardener Mixture Of 3- And 4- Isomers CAS 26590 20 5

Product Details:

Payment & Shipping Terms:

Minimum Order Quantity: 1kg
Packaging Details: 220kg iron drum and 1150kg IBC or as per customer’s request.
Payment Terms: D/A, D/P, T/T, L/C
Supply Ability: 100 tons per day
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Detailed Product Description
SPECIFICATION: WNY1001 Molecular Weight: 166.17
Color (Pt-Co): 200# Max Density (g/cm3 , 20℃): 1.21±0.05
Viscosity (Pa.s, 25℃): 0.045 Max Anhydride Content: 41.5% Min

Methyl tetrahydrophthalic anhydride-MTHPA ACID ANHYDRIDE HARDENER Mixture of 3- and 4- Isomers CAS:26590-20-5



Chemical Name: Methyl tetrahydrophthalic anhydride(MTHPA)

Molecular formula: C9H10O3

Molecular weight: 166.17

CAS No.: 26590-20-5 11070-44-3









1. high purity and light Color
2. low viscosity
3. Stable property
4. low volatility
5. good solubility



Technical Data Sheet:


Item                   Model WNY1002 WNY1001 WNY1008
Appearance Slightly yellow transparent liquid, no impurity
Color (Pt-Co) 300# Max 200# Max
Density (g/cm3 , 20℃) 1.21±0.05
Freezing Point (℃)  -15 Max 0 Max
Viscosity (Pa.s, 25℃) 0.060 Max 0.045 Max 0.040 Max
Acid Value(mgKOH/g) 660-685
Anhydride content 41.5% Min
Volatile matter (120℃) 2.00% Max
Free acid 0.50% Max



























Above are standard grades, anhydride mixtures and different isomer structures can be offered(Mixture of 3- and 4- Isomers)

WNY-1001: suitable for white encapsulation.
WNY-1002: suitable for moulding, pultrusion, interwining.
WNY-1008: suitable for pipelining.




MTHPA, Methyl tetrahydrophthalic anhydride, is a curing agent for Epoxy resins; used in epoxy paints and adhesives; MTHPA is also used in reinforced plastic application, for filament wound products (glass fiber reinforced plastics, pipelines for oilfield, poles and sport goods), printed circuit boards, laminated boards, switchgears.


Storage, Packing & Transportation:


220kg iron drum or 1150kg IBC or as per customer’s request. 

This product shall be airtight, out of the sun, moisture-proof and away from het .The storage period commonly is one year.


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