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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2-methylbuta-1,3-diene

Inventory

EC number:
201-143-3
EC name:
Isoprene
CAS number:
78-79-5
CAS number:
78-79-5
Synonyms
Names:
1,3-Butadiene, 2-methyl-
2-Methyl-1,3-butadiene
2-Methylbuta-1,3-diene
2-Methylbutadiene
Isopren
Identifier:
IUPAC name
2-Methyl-1,3-butadiene
Identifier:
IUPAC name
2-methylbuta-1,3-diene
Identifier:
IUPAC name
Isoprene
Identifier:
IUPAC name
isoprene
Identifier:
ChemSpider ID
CSID:6309
Identifier:
common name
2-methylbutadiene
Identifier:
common name
Isopentadiene
Identifier:
PubChem
CID 6557
Identifier:
other: InChl
1S/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3
Identifier:
other: InChl
1S/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3
Identifier:
other: SMILES notation
C(C=C)(C)=C
Identifier:
other: InChl
InChI=1S/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3
Identifier:
other: InChl
InChI=1S/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3 AuxInfo=1/0/N:3,5,4,2,1/rA:5CCCCC/rB:s1;d2;s1;d1;/rC:1.3326,-1.5407,0;2.6654,-2.3111,0;2.6654,-3.8517,0;1.3326,0,0;0,-2.3072,0;
Identifier:
other: EPA Substance Registry Services (SRS)
Internal Tracking Number: 7328
2-methylbuta-1,3-diene

Molecular and structural information

Molecular formula:
C5H8
Molecular weight:
68.117
SMILES notation:
CC(=C)C=C
InChl:
InChI=1/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3
Structural formula:
Chemical structure

Related substances

Identifier:
CAS number
Identity:
78006-92-5, 823271-95-0