Methylhexahydrophthalic Anhydride

Product details

Meythylhexahydrophthalic Anhydride (MHHPA) is produced by hydrogenation from Methyltetrahydrophthalic Anhydride (MTHPA).

CAS-No. 25550-51-0
EINECS-No. 247-094-1

Synonym: Hexahydromethylphthalic Anhydride
Uses/applications: Hardener for Epoxy Resins, raw material for adhesion resins


Product CodeQualityPacking UnitSpec SheetInquiry
12090 min. 97.5% 220 kg drums PDF: min. 97.5% - 220 kgs drums Contact
12091 min. 97.5% 1.100 kgs IBC PDF: min. 97.5% - 1.100 kgs IBC Contact

MSDS according 91/155 EEC (2001/58 EC)


More information

Information pertaining to particular dangers for man and environment for Meythylhexahydrophthalic Anhydride (MHHPA):
R 41 Risk of serious damage to eyes.
R 42/43 May cause sensitisation by inhalation and skin contact.

Classification system for Methylhexahydrophthalic Anhydride:

The classification was made according to the latest editions of the EU-lists, and expanded using company data and specialized literature.
Chemical characterization for Meythylhexahydrophthalic Anhydride (MHHPA), Hexahydromethylphthalic Anhydride:
CAS No. Description:
26590-20-5 1,2,3,6-tetrahydromethylphthalic anhydride

Identification number(s):

EINECS Number: 247-830-1
EU Number: 607-240-00-0
General Information for
Meythylhexahydrophthalic Anhydride (MHHPA), Hexahydromethylphthalic Anhydride
Form: Fluid
Colour: slightly yellowish
Odour: Pungent

Change in condition:
Melting point/Melting range: undetermined
Boiling point/Boiling range: 196.1°C
Flash point: 100°C (closed cup)
Ignition temperature: 475°C
Danger of explosion: Product does not present an explosion hazard.
Density at 20°C: 1.195 g/cm³

Solubility in / Miscibility with
Slightly soluble
Land transport ADR/RID (cross-border) for Meythylhexahydrophthalic Anhydride (MHHPA):
ADR/RID class: No hazardous good according to the regulation.

Maritime transport IMDG:

IMDG Class: No hazardous good according to the regulation.

Air transport ICAO-TI and IATA-DGR:

ICAO/IATA Class: No hazardous good according to the regulation.
Markings according to EC guidelines for Methylhexahydrophthalic Anhydride (MHHPA):
The product has been classified and marked in accordance with EU Directives / Ordinance on Hazardous Materials

Risk phrases:

41 Risk of serious damage to eyes.
42/43 May cause sensitisation by inhalation and skin contact.

Safety phrases:

22 Do not breathe dust.
24 Avoid contact with skin.
26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
37/39 Wear suitable gloves and eye/face protection.

National regulations

Information about limitation of use:
Restrictions on juvenile employment must be observed.
Employment restrictions concerning pregnant and lactating women must be observed.

Technical guidance (air):

Class         Share in %
  I                100.0

Water hazard class:
Water hazard class 2 (Self-assessment): hazardous for water.

Hazard description

GHS hazard labels

Hazardous material sign

Xn Harmful