|  | |  |  | Hexahydro-4-methylphthalic anhydride Basic information | 
 | Product Name: | Hexahydro-4-methylphthalic anhydride |  | Synonyms: | HEXAHYDRO-4-METHYLPHTHALIC ANHYDRIDE;HEXAHYDRO-3-METHYLPHTHALIC ANHYDRIDE;3-METHYL-1,2-CYCLOHEXANEDICARBOXYLIC ANHYDRIDE;4-METHYL-1,2-CYCLOHEXANEDICARBOXYLIC ANHYDRIDE;4-METHYLCYCLOHEXANE-1,2-DICARBOXYLIC ANHYDRIDE;3-Isobenzofurandione,hexahydro-5-methyl-1;4-methylcyclohexyl-1,6-dicarboxylicacidanhydride;5-Methylhexahydro-1,3-isobenzofurandione |  | CAS: | 19438-60-9 |  | MF: | C9H12O3 |  | MW: | 168.19 |  | EINECS: | 243-072-0 |  | Product Categories: | Organics |  | Mol File: | 19438-60-9.mol |  |  | 
|  |  | Hexahydro-4-methylphthalic anhydride Chemical Properties | 
 | Melting point | -29°C |  | Boiling point | 120°C (1 mmHg) |  | density | 1.162 g/mL at 25 °C(lit.) |  | vapor pressure | 0.23Pa at 25℃ |  | refractive index | n20/D 1.477(lit.) |  | Fp | >230 °F |  | storage temp. | Inert atmosphere,Room Temperature |  | solubility | Chloroform (Slightly), Ethyl Acetate (Slightly) |  | pka | 4.24[at 20 ℃] |  | form | Liquid |  | color | Clear |  | Water Solubility | REACTS |  | Sensitive | Moisture Sensitive |  | Stability: | Hygroscopic, Moisture Sensitive |  | InChIKey | FKBMTBAXDISZGN-UHFFFAOYSA-N |  | LogP | -3.95 at 20℃ |  | CAS DataBase Reference | 19438-60-9(CAS DataBase Reference) |  | EPA Substance Registry System | 1,3-Isobenzofurandione, hexahydro-5-methyl- (19438-60-9) | 
| Hazard Codes | Xn |  | Risk Statements | 41-42/43 |  | Safety Statements | 22-24-26-37/39 |  | WGK Germany | 1 |  | Hazard Note | Irritant |  | TSCA | Yes |  | HS Code | 29172090 | 
|  |  | Hexahydro-4-methylphthalic anhydride Usage And Synthesis | 
 | Description | Methylhexahydrophthalic anhydride (MHHP A) is an
epoxy hardener, irritant to skin and mucus membranes.
It is included in non-diglycidyl-ether-of-bisphenol-
A epoxy resins. It can induce both allergic
contact dermatitis and immunologic contact urticaria.
MHHP A is structurally close to methyltetrahydrophthalic
anhydride (MTHP A), which can also cause
sensitization. |  | Chemical Properties | Hexahydro-4-methylphthalic anhydride has a melting point of 29 °C, so it
 is a liquid at room temperature. It has a boiling point of 120 °C and 
at 25 °C its density is 1.162 g/mL. |  | Uses | Hexahydro-4-methylphthalic anhydride, mixture of?cis?and?trans may be used as an analytical standard for the determination of the analyte in human biological samples by gas chromatography-mass spectrometry (GC-MS). |  | General Description | Methylhexahydrophthalic anhydride, a congener of phthalic anhydride, is utilized in the production of plastics, paints, and electronic components. It can potentially result in allergenic effects on humans upon exposure and cause immunological reactions. |  | Flammability and Explosibility | Nonflammable |  | Contact allergens | Methylhexahydrophthalic anhydride is an epoxy hardener,
irritant to skin and mucous membranes. It is included in
nondiglycidyl-ether-of-bisphenol-A epoxy resins. It can
induce both allergic contact dermatitis and immunologic
contact urticaria. It is structurally close to methyltetrahydrophthalic
anhydride, which can also cause sensitization. | 
|  |  | Hexahydro-4-methylphthalic anhydride Preparation Products And Raw materials | 
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