Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Identification

Chemical structure
Display Name:
Tetrahydrophthalic anhydride
EC Number:
247-570-9
EC Name:
Tetrahydrophthalic anhydride
CAS Number:
26266-63-7
Molecular formula:
C8H8O3
IUPAC Name:
tetrahydro-2-benzofuran-1,3-dione

Type of Substance

Composition:
UVCB
Origin:
organic

Substance Identifiers open all close all

THPA
(acronym)

Compositions

Boundary Composition(s) open all close all

State Form:
other: solid: amorphous


Constituent 1
Chemical structure
Reference substance name:
3a,4,5,7a-tetrahydro-2-benzofuran-1,3-dione
CAS Number:
4717-58-2
Molecular formula:
C8H8O3
IUPAC Name:
3a,4,5,7a-tetrahydro-2-benzofuran-1,3-dione
Constituent 2
Chemical structure
Reference substance name:
1,2,3,6-tetrahydrophthalic anhydride
EC Number:
201-605-4
EC Name:
1,2,3,6-tetrahydrophthalic anhydride
CAS Number:
85-43-8
Molecular formula:
C8H8O3
IUPAC Name:
3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione
Constituent 3
Chemical structure
Reference substance name:
3a,4,5,6-tetrahydro-2-benzofuran-1,3-dione
CAS Number:
4717-57-1
Molecular formula:
C8H8O3
IUPAC Name:
3a,4,5,6-tetrahydro-2-benzofuran-1,3-dione
Constituent 4
Chemical structure
Reference substance name:
3,4,5,6-tetrahydrophthalic anhydride
EC Number:
219-374-3
EC Name:
3,4,5,6-tetrahydrophthalic anhydride
CAS Number:
2426-02-0
Molecular formula:
C8H8O3
IUPAC Name:
4,5,6,7-tetrahydro-2-benzofuran-1,3-dione
Constituent 5
Reference substance name:
undefined impurity
Molecular formula:
not applicable
IUPAC Name:
undefined impurity

Legal Entity Composition(s) open all close all

State Form:
other: solid: amorphous


Constituent 1
Chemical structure
Reference substance name:
3a,4,5,7a-tetrahydro-2-benzofuran-1,3-dione
CAS Number:
4717-58-2
Molecular formula:
C8H8O3
IUPAC Name:
3a,4,5,7a-tetrahydro-2-benzofuran-1,3-dione
Constituent 2
Chemical structure
Reference substance name:
1,2,3,6-tetrahydrophthalic anhydride
EC Number:
201-605-4
EC Name:
1,2,3,6-tetrahydrophthalic anhydride
CAS Number:
85-43-8
Molecular formula:
C8H8O3
IUPAC Name:
3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione
Constituent 3
Chemical structure
Reference substance name:
3a,4,5,6-tetrahydro-2-benzofuran-1,3-dione
CAS Number:
4717-57-1
Molecular formula:
C8H8O3
IUPAC Name:
3a,4,5,6-tetrahydro-2-benzofuran-1,3-dione
Constituent 4
Chemical structure
Reference substance name:
3,4,5,6-tetrahydrophthalic anhydride
EC Number:
219-374-3
EC Name:
3,4,5,6-tetrahydrophthalic anhydride
CAS Number:
2426-02-0
Molecular formula:
C8H8O3
IUPAC Name:
4,5,6,7-tetrahydro-2-benzofuran-1,3-dione
Constituent 5
Reference substance name:
undefined impurity
Molecular formula:
not applicable
IUPAC Name:
undefined impurity

Composition(s) generated upon use

Other types of composition(s)