Grundinformationen
- CAS
11070-44-3- Standard-SMILES
CC12CCCC=C1C(=O)OC2=O- InChIKey
LOYDTBZMMPQJNI-UHFFFAOYSA-N- Summenformel
- C9H10O3
- Durchschnittliche Molmasse
- 166,17 g/mol
- Monoisotopische Masse
- 166,06299418
Namen und Bezeichner
- Bevorzugter Name
- Tetrahydromethylphthalic anhydride
- IUPAC
- 3a-methyl-5,6-dihydro-4H-2-benzofuran-1,3-dione
- Lokaler Name
- Tetrahydromethylphthalsäure-anhydrid
- Englischer Name
- Tetrahydromethyl-1,3-isobenzofurandione
- Summenformel
- C9H10O3
- Molmasse
- 166.17
Namen und Synonyme
Tetrahydromethyl-1,3-isobenzofurandione1,3-Isobenzofurandione, tetrahydromethyl-Tetrahydromethylphthalic anhydrideEINECS 234-290-7EC 234-290-7RefChem:897184Tetrahydromethyl1,3isobenzofuranedione1,3Isobenzofurandione, tetrahydromethyl234-290-73a-methyl-5,6-dihydro-4H-2-benzofuran-1,3-dione3a-methyl-5,6-dihydro-4H-isobenzofuran-1,3-dioneMETHYLCYCLOHEXENE-1,2-DICARBOXYLICANHYDRIDE
Weitere Namen anzeigen
MTHPA4-METHYL TETRAHYDROPHTHALIC ANHYDRIDEMTHPA-6003-METHYL-DELTA4-TETRAHYDROPHTHALIC ANHYDRIDE3-METHYL-4-CYCLOHEXENE-1,2-DICARBOXYLIC ANHYDRIDEMTHPA-EGAC-METHYL3a-methyl-51,3-Isobenzofurandione, 3a,4
75910-60-0Methyltetrahydrophthalic anhydride (MTHPA)DSSTox_CID_7729DSSTox_RID_78551DSSTox_GSID_27729SCHEMBL887873CHEMBL3183160DTXSID40860089
Eigenschaften
Berechnete Struktureigenschaften
- XLogP
- 1,4
- Polarare Oberfläche (TPSA)
- 43,4 Ų
- H-Brücken-Donoren
- 0
- H-Brücken-Akzeptoren
- 3
- Frei drehbare Bindungen
- 0
- Schwere Atome
- 12
- Formalladung
- 0
- Komplexität
- 290
Experimentelle und physikochemische Eigenschaften
PolymersPlastics & Rubber -> Acid Anhydrides, Cyclic
Vapor Pressure0.003 [mmHg]
Physical DescriptionLiquid
Physikochemische Eigenschaften
- Schmelzpunkt
- -100 °C · <-100.00°C
- Siedepunkt
- 120 °C/3 · 120 °C/3 mmHg
- Dichte
- 1 · 1,21 g/cm3
- Dampfdruck
- 0.373 Pa · 0.373Pa at 24.85℃
- Brechungsindex
- 1.497 to · 1.4970 to 1.5020
- Flammpunkt
- 157 °C · 157 °C
- storage temp.
- 2 · Storage temp. 2-8°C
- Wasserlöslichkeit
- Soluble in water
- Aggregatzustand
- clear liquid
- Farbe
- Colorless to Light yellow
Sicherheit und Regulatorisches
Sicherheitsangaben dienen nur zur Orientierung und ersetzen weder das Sicherheitsdatenblatt (SDB) des Lieferanten noch geltende Vorschriften oder eine fachliche Bewertung.
GHS-Klassifizierung
GHS Classification
Danger
H317: May cause an allergic skin reaction [Warning Sensitization, Skin]
P233, P260, P261, P264+P265, P271, P272, P280, P284, P302+P352, P304+P340, P305+P354+P338, P317, P321, P333+P317, P342+P316, P362+P364, P403, and P501 (click each P-code to see the statement)
Danger
H302 (20.2%): Harmful if swallowed [Warning Acute toxicity, oral]
P233, P260, P261, P264, P264+P265, P270, P271, P272, P280, P284, P301+P317, P302+P352, P304+P340, P305+P354+P338, P317, P321, P330, P333+P317, P342+P316, P362+P364, P403, and P501 (click each P-code to see the statement)
Gefahrenhinweise
Regulatory Information
Chemical: 1,3-Isobenzofurandione, tetrahydromethyl-
Hazard Traits - Respiratory Toxicity
1,3-Isobenzofurandione, tetrahydromethyl- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 1,3-Isobenzofurandione, tetrahydromethyl- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
REACH registered substance: Tetrahydromethylphthalic anhydride (EC: 234-290-7)
1,3-Isobenzofurandione, tetrahydromethyl-: Does not have an individual approval but may be used under an appropriate group standard
Other Safety InformationIMAP assessments - Tetrahydrophthalic anhydrides and analogues: Human health tier II assessment
Hazards Summary
Sensitizing substance; [MAK] Several occupational sensitization cases by inhalation at processing sites were reported. Respiratory sensitization by this substance mediated by IgE have been reported (Nielsen, J. et al.1992, Yokota, K. et al. 1998, Yokota, K. et al. 1999). [eChemPortal: SIDSUNEP] May cause skin and respiratory sensitization after prolonged contact; May cause serious damage to eyes; [eChemPortal: ESIS] Danger of sensitization of airways; [MAK] See ACID ANHYDRIDES.
Chemie und Industrie
Verwendung und Herstellung
Uses
Used mainly as a hardener for epoxy resins; [eChemPortal: SIDSUNEP]
Plastic Composites Manufacturing [Category: Industry]
U.S. Production2023: 700,000 - <850,000 lb
Consumer UsesSurfactant (surface active agent)
Industry UsesNot Known or Reasonably Ascertainable
General Manufacturing Information
Electrical Equipment, Appliance, and Component Manufacturing
1,3-Isobenzofurandione, tetrahydromethyl-: ACTIVE
Anwendungen
VerwendenMethyltetrahydrophthalic Anhydride (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.
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国药集团化学试剂有限公司86-21-63210123 · [email protected]
梯希爱(上海)化成工业发展有限公司021-67121386 · [email protected]
湖北永阔科技有限公司027-59223108 15972152991 · [email protected]
上海阿拉丁生化科技股份有限公司
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