Date of deprecation: 10:59, Apr 9, 2014
Reason for deprecation: Deprecate record: Carbon-8 has a half life of 2.0(4) × 10^-21 s... highly unlikely it would form methane in that time frame.
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Common reasons for deprecation are:
- Chemically impossible structures (eg. incorrect valence atoms)
- Lack of any linking data sources
- Poor depiction of a structure that is already in ChemSpider