Aldehyde,

• [arugo] moonlight project 2nd section - 110-
  http://fly-up-fairy.cocolog-nifty.com/story/2011/09/-110--d568.html
  The flame of formaldehyde was visible

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  A flama do formaldehyde era visível
  
  
• From Showa high-molecular Showa Electric Co., a liberal translation
  http://blog.goo.ne.jp/kucctada/e/602cbd0d1264ed1e0903aba3684774ef
  The formaldehyde and formaldehyde aqueous solution which includes the formalin is appointed to the deleterious substance outside the medicine by the poison and deleterious substance control law

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  O formaldehyde e a solução aquosa do formaldehyde que inclui o formalin são apontados para a substância deletéria fora da medicina pelo veneno e pela lei de controle deletéria da substância
  
  
• Japanese talking
  http://blog.goo.ne.jp/genesislife/e/a91120fc09b3ea5f6ee49cb0ace37167
  In tabacco smoke in addition to nicotine naphthylamine, nitrosamine, benzene, ammonia, formaldehyde, benzopyrene, carbon monoxide, lead and polonium,…(Other approximately 4000 types) with many components being included, the substance where approximately 70 type among those has carcinogenesis

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  No fumo do tabacco além do que o naphthylamine da nicotina, a nitrosamina, o benzeno, a amônia, o formaldehyde, o benzopyrene, o monóxido de carbono, a ligação e o polónio,… (outros aproximadamente 4000 tipos) com muitos componentes que são incluídos, a substância onde o tipo aproximadamente 70 entre aqueles tem a carcinogénese