... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > one-carbon compound > carbonotriselenoic acid

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > chalcogen molecular entity > organochalcogen compound > chalcocarbonic acid > carbonotriselenoic acid

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > heteroorganic entity > organochalcogen compound > chalcocarbonic acid > carbonotriselenoic acid