CAS: 4249-10-9 Molecular Formula: C9H14 Molecular Weight (g/mol): 122.21 InChI Key: VNPQQEYMXYCAEZ-UHFFFAOYSA-N Synonym: 1,2,3,4-tetramethylcyclopentadiene,tetramethylcyclopentadiene,1,2,3,4-tetramethyl-1,3-cyclopentadiene,tetramethyl cyclopentadiene,tetramethylcyclopentadiene, mixed isomers,pubchem15072,acmc-1an6q,1,3-cyclopentadiene, tetramethyl,2,3,4,5-tetramethylcyclopenta-2,4-diene PubChem CID: 138163 IUPAC Name: 1,2,3,4-tetramethylcyclopenta-1,3-diene SMILES: CC1=C(C(=C(C1)C)C)C