34096
" Ethylene " ( IUPAC name : " ethene " ) is a hydrocarbon which has the formula or HC = CH. It is a colorless flammable gas with a faint " sweet and musky " odour when pure .
 IUPAC
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 IUPAC