Mthpa Methyltetrahydrophthalicanhydride CAS 11070-44-3

• CAS No.: 11070-44-3
• Formula: C9h10o3
• EINECS: 234-290-7
• Type: Pharmaceutical Intermediates
• Appearance: Liquid
• Quality: Industrial
• Model NO.: 99%
• Colour: Colorless
• Certificate: ISO901
• Delivery: Prompt
• Density, g/cm3, 20ºC: 1.21±0.05
• Colour (PT-Co): 200
• Viscosity, MPa.S (25ºC): 30-60
• Transport Package: Drum
• Specification: 99% min
• Trademark: SWC
• Origin: China
• Production Capacity: 20mts/Month

Product Description

Product Description

Product Name MethyltetrahydrophthalicAnhydride

Identification
Synonyms MTHPA; Tetrahydromethyl-1,3-isobenzofurandione; 4-Methyl tetrahydro phthalicanhydride
CAS Number 11070-44-3
EINECS 234-290-7
Structure

Properties
Appearance Colorless or light yellow liquid
Stability Stable under ordinary conditions

Specification

Test Items	Specifications
Appearance	Colorless or light yellow liquid
Density, g/cm3, 20ºC	1.21±0.05
Colour (Pt-Co)	200
Viscosity, MPA.S (25ºC)	30-60
Anhydrid content, %	41.0 min
Freezing point, ºC	-15 max
Volatile content, %	1.0 max
Free acid, %	1.0 max
Acidity (mgKOH/g)	660-685
Density, g/cm3, 20ºC	1.21±0.05
Colour (Pt-Co)	200

Application
MethyltetrahydrophthalicAnhydride (abbreviation:MTHPA) has been used in the curing agents for epoxy resins, solvent-free paints,laminated boards, epoxy adhesives and so on. When used in the curing agent for epoxy resins, there are many excellent performances such as the long-term storage at room temperature, low freezing point, low volatility and low toxicity. Also widely used in motors, dry-type transformers, appliances capacitors, power capacitors, integrated circuits impregnation, casting and winding.

Packing and Storage
Packing In 220kgs or 250kgs net iron drum.
Storage Keep tightly closed. Keep in a cool dry place. Keep container tightly closed in a dry and well-ventilated place away from heat or direct sunlight.

Safety Information
Non-hazardous for air, sea and road freight.
Detailed safety information is contained in each Material Safety Data Sheet, which can be obtained from our company.

Frequently Asked Questions

Q1: May I get one sample before placing order?
Re: Yes, Sample are available. For normal products, samples are for free and you just need to bear the freight; 

For those high value products, you just need to freight and certain product cost. When we both cooperate for 

some times or when you are our VIP customer, free sample will be offered when you need.

Q2: Which payment is available for your company?
Re: T/T, L/C. You can choose the one which is convenient for you. 

Q3: How and when can I get my goods after payment?
Re: For small quantity products, they will be delivered to you by international courier(DHL, FedEx, TNT etc.) 

or by air. Usually it will cost 3-5days that you can get the goods after delivery.For large quantity products,

shipping by see is worthwhile.It will cost days to weeks to come to your destination port, which depends on 

where the port is.

Q4: Is there any possible to use my appointed label or package?
Re: Yes. If needed, we'd like to use label or package according to your requirement. 

Q5: How can you guarantee the goods you offer is qualified? 
Re: We always believe honesty and responsibility are basis of one company, so whatever products we provide 

for you all are qualified. We will have goods tested and provide COA before delivery for sure.