Formaldehyde

Formaldehyde or Methanal (Margaret Allegra) is a mortician and embalmer. She is better known for her embalming work. Formaldehyde is Methanol's daughter.

Personality
Despite being portrayed as "harsh" and "evil" by others, Formaldehyde is one of the most careful Chemicals. She was grown with a great urge to be a poison, ended up working together with humans. She wanted to follow her mother's steps because she mistook Methanol for a "villain", later in her life, Formaldehyde realised that evil and good were just human values. She has accepted her toxicity as her own "nature".

Physical appearance
Formaldehyde has blonde hair that was previously dyed blue like her brother DME did.

Formaldehyde's right eye is so damaged that it does not work anymore, she wears an eyepatch over it. Her body is covered in suspicious scars which had not regenerated.

Relationships
Formaldehyde has two sons named Formic Acid and Methanediol, and two daughters; Bischloromethyl Ether, Acrolein. She has dated Urea, Acetone, Hydrochloric Acid, Acetaldehyde, Ammonia and also married to Phenol in 1909.