<Tr> <Th_colspan="2"> Hazards </Th> </Tr> <Tr> <Td> Safety data sheet </Td> <Td> Pennakem </Td> </Tr> <Tr> <Td> R - phrases (outdated) </Td> <Td> R26 / 27 / 28, R45 </Td> </Tr> <Tr> <Td> S - phrases (outdated) </Td> <Td> S16, S37, S45, S28 </Td> </Tr>

Write a structure formula of the following furon