Methyl hexahydrophthalic anhydride 
Brief intro. 
Methyl hexahydrophthalic anhydride is MeHHPA for short. CAS#: 25550-51-0; Molecular formula: C9H12O3; Molecular weight: 168.19; Specific weight: 1.152; Soluble in benzene, acetone etc., can absorb moisture. 

Technical specification 
Appearance: Colorless transparent liquid 
Color: ≤ 20# 
Iodine value: ≤ 1.0 
Acid value: ≥ 650 
Viscosity (25degree): 0.045-0.075Pa. S 
Specific weight(20degree): 1.18± 0.05 
Solidification point: <-20degree 
Free acid %: <1.0 

Use 
Used in epoxy resin solidifying agent, adhesive as well as insecticides, plasticizers and rust preventative etc... 

Storage, packing & transportation 
Packed in 25-kilogram plastic drums, 220-kilogram iron/plastic drums. During transportation, this product shall be kept from moisture, fire, water and it shall be stored in warehouses with good ventilation.