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| | 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;MHHPA;3-Isobenzofurandione,hexahydro-5-methyl-1;4-methylcyclohexyl-1,6-dicarboxylicacidanhydride | | 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 | | InChI | 1S/C9H12O3/c1-5-2-3-6-7(4-5)9(11)12-8(6)10/h5-7H,2-4H2,1H3 | | InChIKey | FKBMTBAXDISZGN-UHFFFAOYSA-N | | SMILES | CC1CCC2C(C1)C(=O)OC2=O | | 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 | TSCA listed | | HS Code | 29172090 | | Storage Class | 10 - Combustible liquids | | Hazard Classifications | Eye Dam. 1
Resp. Sens. 1
Skin Sens. 1 |
| | 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 ofcisandtrans 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 | Non flammable | | 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. | | Synthesis | 5-methyl-3a,4,7,7a-tetrahydroisobenzofuran-1,3-dione could used as a starting material to synthesize Hexahydro-4-methylphthalic anhydride. The byproducts include 5-methylisobenzofuran-1,3-dione, 5-methyl-4,5,6,7-tetrahydroisobenzofuran-1,3-dione, and 6-methyl-3a,4,5,7a-tetrahydroisobenzofuran-1,3-dione.
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| | Hexahydro-4-methylphthalic anhydride Preparation Products And Raw materials |
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