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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Identification

Chemical structure
Display Name:
Methylcyclopentadiene
EC Number:
247-724-5
EC Name:
Methylcyclopentadiene
CAS Number:
26472-00-4
Molecular formula:
not applicable, UVCB substance
IUPAC Name:
3a,4,7,7a-tetrahydro-1H-4,7-methanoindene

Type of Substance

Composition:
UVCB
Origin:
organic

Substance Identifiers open all close all

MCPD
(Acronym)

Compositions

Boundary Composition(s) open all close all

State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
2,5-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
CAS Number:
7570-08-3
Molecular formula:
C12H16
IUPAC Name:
2,5-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Constituent 2
Chemical structure
Reference substance name:
3,5-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
CAS Number:
67003-10-5
Molecular formula:
C12H16
IUPAC Name:
3,5-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Constituent 3
Reference substance name:
Other dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindenes
Molecular formula:
C12H16
IUPAC Name:
Other dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindenes
Constituent 4
Reference substance name:
methyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindenes
Molecular formula:
C11H14
IUPAC Name:
methyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindenes
Constituent 5
Chemical structure
Reference substance name:
Benzene
EC Number:
200-753-7
EC Name:
Benzene
CAS Number:
71-43-2
Molecular formula:
C6H6
IUPAC Name:
benzene

Legal Entity Composition(s) open all close all

State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
5-methyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Molecular formula:
C11H14
IUPAC Name:
5-methyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Constituent 2
Chemical structure
Reference substance name:
2-methyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Molecular formula:
C11H14
IUPAC Name:
2-methyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Constituent 3
Chemical structure
Reference substance name:
3-methyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Molecular formula:
C11H14
IUPAC Name:
3-methyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Constituent 4
Chemical structure
Reference substance name:
2,7-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
CAS Number:
60729-31-9
Molecular formula:
C12H16
IUPAC Name:
2,7-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Constituent 5
Chemical structure
Reference substance name:
5,7a-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Molecular formula:
C12H16
IUPAC Name:
5,7a-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Constituent 6
Chemical structure
Reference substance name:
2,4-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
CAS Number:
60729-30-8
Molecular formula:
C12H16
IUPAC Name:
2,4-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Constituent 7
Chemical structure
Reference substance name:
3,7-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
CAS Number:
88033-46-9
Molecular formula:
C12H16
IUPAC Name:
3,7-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Constituent 8
Chemical structure
Reference substance name:
2,5-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
CAS Number:
7570-08-3
Molecular formula:
C12H16
IUPAC Name:
2,5-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Constituent 9
Chemical structure
Reference substance name:
3,4-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
CAS Number:
87385-99-7
Molecular formula:
C12H16
IUPAC Name:
3,4-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Constituent 10
Chemical structure
Reference substance name:
2,6-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
CAS Number:
10312-74-0
Molecular formula:
C12H16
IUPAC Name:
2,6-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Constituent 11
Chemical structure
Reference substance name:
3,6-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
CAS Number:
87386-00-3
Molecular formula:
C12H16
IUPAC Name:
3,6-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Constituent 12
Chemical structure
Reference substance name:
3,5-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
CAS Number:
67003-10-5
Molecular formula:
C12H16
IUPAC Name:
3,5-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Constituent 13
Chemical structure
Reference substance name:
Benzene
EC Number:
200-753-7
EC Name:
Benzene
CAS Number:
71-43-2
Molecular formula:
C6H6
IUPAC Name:
benzene
Constituent 14
Reference substance name:
Light unknown impurities
Molecular formula:
not applicable
IUPAC Name:
Light unknown impurities
Constituent 15
Reference substance name:
Heavy unknown impurities
Molecular formula:
not applicable
IUPAC Name:
Heavy unknown impurities
State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
3,5-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
CAS Number:
67003-10-5
Molecular formula:
C12 H16
IUPAC Name:
3,5-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Constituent 2
Chemical structure
Reference substance name:
2,5-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
CAS Number:
7570-08-3
Molecular formula:
C12 H16
IUPAC Name:
2,5-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Constituent 3
Chemical structure
Reference substance name:
rel-(3aR,4S,7R,7aS)-3,4-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
CAS Number:
124581-02-8
Molecular formula:
C12 H16
IUPAC Name:
rel-(3aR,4S,7R,7aS)-3,4-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Constituent 4
Chemical structure
Reference substance name:
rel-(3aR,4S,7R,7aS)-2,4-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
CAS Number:
124576-50-7
Molecular formula:
C12 H16
IUPAC Name:
rel-(3aR,4S,7R,7aS)-2,4-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Constituent 5
Chemical structure
Reference substance name:
rel-(3aR,4S,7R,7aR)-3,7-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
CAS Number:
124576-51-8
Molecular formula:
C12 H16
IUPAC Name:
rel-(3aR,4S,7R,7aR)-3,7-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Constituent 6
Reference substance name:
Unknown Compound B in Meth Cyclopentadiene Dimer
IUPAC Name:
Unknown Compound B in Meth Cyclopentadiene Dimer
Constituent 7
Chemical structure
Reference substance name:
rel-(3aR,4R,7S,7aR)-2,6-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
CAS Number:
124576-52-9
Molecular formula:
C12 H16
IUPAC Name:
rel-(3aR,4R,7S,7aR)-2,6-dimethyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene
Constituent 8
Reference substance name:
Unknown Compound A in Meth Cyclopentadiene Dimer
IUPAC Name:
Unknown Compound A in Meth Cyclopentadiene Dimer
Constituent 9
Reference substance name:
Unknown Compound C in Meth Cyclopentadiene Dimer
IUPAC Name:
Unknown Compound C in Meth Cyclopentadiene Dimer
Constituent 10
Reference substance name:
Unknown Compound D in Meth Cyclopentadiene Dimer
IUPAC Name:
Unknown Compound D in Meth Cyclopentadiene Dimer
Constituent 11
Chemical structure
Reference substance name:
Methylcyclopenta-1,3-diene
EC Number:
247-757-5
EC Name:
Methylcyclopenta-1,3-diene
CAS Number:
26519-91-5
Molecular formula:
C6H8
IUPAC Name:
1-methylcyclopenta-1,3-diene
Constituent 12
Reference substance name:
Unknown Constituents in Meth Cyclopentadiene Dimer
IUPAC Name:
Unknown Constituents in Meth Cyclopentadiene Dimer

Composition(s) generated upon use

Other types of composition(s)