Related Clues:

• Gas used as preservative
• Black-tie event for writer retiring to secure accommodation ¿ it's said it¿s good for one's preservation
• Creatures preserved here in accordance with rules of a French park
• Preservative, stiff and dry, repelling rat
• Preservative for biological specimens
• Colourless poisonous gas used in the manufacture of synthetic resins
• Ham freely contaminated with odd chemical
• Means of preserving freedom -- hardly, with no right to be flexible
• It preserves official of Parisian park
• Starchy doctor’s alter ego with notes on pungent gas
• Chemical used in building materials
• Preservative gas
• Colourless poison gas — do half remedy (anag)
• Preservative starchy and dry that drives out vermin
• Methanal