FTP, name this compound with chemical formula HOCH, also used as an enbalming agent, which is the simplest of the aldehydes.
When this chemical reacts with acetaldehyde and calcium hydroxide, it forms pentaerythritol, a relative of the explosive PETN, while reaction with ammonia yields methenamine, used as a urinary antiseptic.  Produced principally by the vapor-phase oxidation of methanol, in its pure form it is a colorless, flammable gas which irritates the mucus membranes, and it is used widely in the tanning industry and as a disinfectant.  FTP, name this compound with chemical formula HOCH, also used as an enbalming agent, which is the simplest of the aldehydes.
When this chemical reacts with acetaldehyde and calcium hydroxide, it forms pentaerythritol, a relative of the explosive PETN, while reaction with ammonia yields methenamine, used as a urinary antiseptic.  
Formaldehyde (accept methanal (not "methanol"))