Name: Factory Hot Selling High Quality Best Price Tetrahydromethyl-1,3-Isobenzofurandione CAS 11070-44-3 with good service
Brand: Wuhan Fortuna Chemical Co., Ltd.

Detailed Description

Specifications of Tetrahydromethyl-1,3-Isobenzofurandione CAS 11070-44-3

Items	Specifications	Results
Appearance(25℃)	Light yellow transparent liquid	Light yellow transparent liquid
Color(Platinum-cobalt)	≤80#	35.63#
Crystallizing point(℃)	≤-15	＜-15
Acid value(mgKOH/g)	660.0-685.0	670
Contents of anhydride-group	≥41.00	42.44
Viscosity(25℃)mpa.s	≤50	35.4
Density(20℃)g/cm³	1.210±0.05	1.199
Free Acid%	≤0.50	0.06
Conclusion	The product conforms to the above specifications.

Parameters of Tetrahydromethyl-1,3-Isobenzofurandione CAS 11070-44-3

Product parameters
Cas number:	11070-44-3
Appearance:	Colorless or light yellow transparent liquid
Purity:	Anhydride:41%min
Package details:	25kg/drum;220kg/drum
Brand:	Fortunachem

Uses:

Tetrahydromethyl-1,3-isobenzofurandione (CAS No.: 11070-44-3), commonly abbreviated as MTHPA (Methyltetrahydrophthalic anhydride), is a cyclic dicarboxylic anhydride. At room temperature, it typically appears as a colorless to light yellow transparent liquid with a molecular formula of C₉H₁₀O₃.

Primary Uses

MTHPA is a versatile chemical intermediate with applications across several high-performance industries:

Epoxy Resin Curing Agent: It is widely used as a hardener/curing agent for epoxy resins. It is particularly valued in the electronics and electrical industries for impregnation, casting, and winding applications in motors, dry-type transformers, appliance capacitors, power capacitors, and integrated circuits.
Polymer Synthesis: It serves as a monomer or cross-linking agent in advanced polymer synthesis, helping to create high-performance coatings, adhesives, electrical insulation, and composite materials.
Flame Retardant & Additive: It acts as a low-cost, high-performance flame retardant for thermoplastic and thermosetting polymers (like PE, PP, PS, ABS, PVC, PA, PET). It is also used as an additive in paints, coatings, inks, and adhesives to provide protection against fire, smoke, heat, light, and weathering.
Solvent & Industrial Applications: It functions as an excellent organic solvent and is utilized in various sectors including medicine, dyes, fragrances, cosmetics, and electroplating.

Key Selling Points

For manufacturers, formulators, and R&D scientists, MTHPA offers several distinct commercial and performance advantages:

Enhanced Material Properties: Incorporating MTHPA into polymer matrices significantly improves thermal stability (higher decomposition temperatures), mechanical strength (tensile strength and durability), and resistance to various solvents and corrosive chemicals.
Superior Processing & Storage: When used as an epoxy curing agent, it offers excellent long-term storage stability at room temperature, a low freezing point, and low volatility, making it highly convenient for industrial processing.
Cost-Effectiveness: It is recognized as a low-cost yet highly effective flame retardant and additive, offering an economical way to upgrade product fire safety standards and extend material lifespan.
Safety & Handling: Compared to some alternatives, it is noted for being relatively easy to handle, possessing low toxicity, and having a low odor, alongside a long shelf life.

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Also, if you have any other questions, you can contact us
FAQ From Wuhan Fortuna Chemical Co.,Ltd

Q1: Can I get a sample for free ?
A: For small QTY and low value product, we can provide sample for free exclude shipping cost. For high value sample, we will charge the basic sample cost, but we can refund all the cost if customers place order after sample test.
Q2: How to confirm the product quality before placing orders ?
A: Most of our products confirm to international standards like USP/EP/BP/JP/CP. We will provide COA/TDS/MSDS for customers to confirm the specification before placing order.
Q3: What is the payment you accept?
A: For small and low value order, we accept CreditCard, MaterCard,VISA,Western Union and T/T.For large order, we can do T/T and L/C. Any pay on delivery or pay-after are not available for us.
Q4: What is your shipment way ?
A: For less than 100kg gross weight order will ship with courier like FedEx or UPS, we support customers to place courier orders remotely by their account, we will package the goods well and wait for pick up.For more than 100kg goods, we will transport by Air or Sea according to customers' requirement.
Q5: How long is your after-sales service?
A: We accept customer’s quality complaint in three month after customer received the goods. We provide tech.support for all-life if customer place order from our company.

Q6: How do you treat quality complaint ?

A: We support customer to provide our products to any rightful third party testing organization to test our products according to the COA specification, if the test result is confirm with COA, we will take all the loss for customers.

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Company Information

Name:Wuhan Fortuna Chemical Co.,Ltd

Category:Others

Trade Category: Trading Company

Employees: 11 - 50 People

Address: Room 2015, No.2 Building, Kaixin Mansion No.107

Company Information: Wuhan Fortuna Chemical Co.,Ltd established in 2006, is a big integrative chemical enterprise being engaged in Pharmaceutical and Intermediates, Food and Feed additives, Fine chemicals,Biochemical and Reagent, which is the members of Hubei E-commerce Chamber.

Our company has professional persons who major in chemical R&D and sicentific management, supply fine chemical products with high quality and close service, also supply custom-tailored products according to our clients' requirement.

We have a positive and self-motivated management work team with a common philosophy, caring and commitment through teamwork, our team strive to achieve success in delighting our clients and ourselves.

Since Wuhan Fortuna Chemical Co., Ltd founded, we continuously innovate our products and improve our service, sales network. Hence, we initiate the first sale mode on net in China, which is the retail trade of small package bring along wholesale of diversified management modes. Our products are exported widely to South Korea, Vietnam, Australia, Europe and South America, highly recommended by our clients.We insist on the management creed “Market is our compass, Quality is our life, Credit is our soul”. Clients’ trust is our forward power, their satisfaction is our struggling goal.

Wuhan Fortuna Chemical Co.,Ltd is a professional manufacturer which provide Tetrahydromethyl-1,3-isobenzofurandione with good quality and best price, welcome to contact us to get COA/TDS/MSDS of Tetrahydromethyl-1,3-isobenzofurandione.

Our Advantages:

1. Guaranteed purity;

2. Large quantity in stock;

3. Largest manufacturer;

4. Best service after shipment with email;

5. High quality & competitive price;