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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Reference substances

Reference substances

Currently viewing:
IUPAC name:
5-methyl-1,3,3a,4,7,7a-hexahydro-2-benzofuran-1,3-dione

Inventory

EC number:
251-823-9
EC name:
Tetrahydro-4-methylphthalic anhydride
CAS number:
34090-76-1
CAS number:
34090-76-1
Synonyms
Names:
4-MTHPA
4-Methyltetrahydrophthalic acid anhydride
4-Methyltetrahydrophthalic anhydride
5-Methyltetrahydroisobenzofuran-1,3-dione
Cyclohexene-1,2-dicarboxylic anhydride, 4-methyl-
Identifier:
IUPAC name
6-methyl-3a,4,5,7a-tetrahydro-2-benzofuran-1,3-dione
Identifier:
other: SMILES notation
CC1=CC2C(CC1)C(=O)OC2=O
Identifier:
other: InChl
InChI=1/C9H10O3/c1-5-2-3-6-7(4-5)9(11)12-8(6)10/h4,6-7H,2-3H2,1H3
5-methyl-tetrahydro-2-benzofuran-1,3-dione

Molecular and structural information

Molecular formula:
C9H10O3
Molecular weight:
166.174
SMILES notation:
Not applicable (generic description of constitutional isomers).
InChl:
Not applicable (generic description of constitutional isomers).
Structural formula:
Chemical structure

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