Carbon pentamer
penta-1,2,3,4-tetraene
Also Known As: pentatetraene|Carbon|Carbon pentamer|Pentatetraen|Pentaatomic carbon|1,2,3,4-Pentatetraene|Carbon cluster C5|Carbon (C5)|Pentaatomic carbon cluster|Carbon pentaatomic molecule|penta-1,2,3,4-tetraene|1,2,3,4-Pentatetrene|CH2=C=C=C=CH2|CARBON, MOL. (C5)|1,2,3,4-Pentanetetraene|Penta-1,2,3,4-tetrene|Pentane-1,2,3,4-tetrene|1,2,3,4-Pentatetraene(9CI)|J1.057.667I|C5
CAS: 21986-03-8
| Molecular Formula | C5H4 |
|---|---|
| Molecular Weight | 64.0313 g/mol |
| Hydrogen Bond Donors | 0 |
| Hydrogen Bond Acceptors | 0 |
| Rotatable Bonds | 0 |
| Exact Mass | 64.0313 |
| Monoisotopic Mass | 64.0313 |
| Heavy Atoms | 5 |
| Complexity | 86.0 |
Chemical Identifiers
| CAS Number | 21986-03-8 |
|---|---|
| SMILES | C=C=C=C=C |
| InChIKey | UNSWNZFTRPSXHQ-UHFFFAOYSA-N |
Patent-Derived Application Labels
Derived from 6 IPC patent classification(s) across the SureChEMBL global patent database.
Agrochemicals (2 patents)
Catalysts (5 patents)
Heterocyclic Building Blocks (2 patents)
Organic Building Blocks (7 patents)
Organometallic Reagents (15 patents)
Polymer Intermediates (9 patents)
Product Overview
Carbon pentamer (CAS 21986-03-8), with molecular formula C5H4 and molecular weight 64.0313 g/mol. IUPAC: penta-1,2,3,4-tetraene.
Safety Data Sheet (MSDS / SDS)
View the Laboratory Chemical Safety Summary (LCSS) on PubChem — includes GHS classifications, hazard statements, first aid measures, and handling precautions.
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