What is it?
Methenamine is usually used in the manufacture of formaldehyde resins, rubber and the explosive, cyclonite. It is also used as a urinary antibacterial and antiseptic.

How do I avoid it?
You should avoid any contact with this substance. Avoidance requires reading labels, package inserts, Material Safety Data Sheets and, on occasion, direct communication with the manufacturer.

  • Antibiotics
  • Antiseptic agent (urinary)
  • Coatings and sealing compounds
  • Corrosion inhibitor for steel
  • Deodorant
  • Dye fixative
  • Epoxy curing agent
  • Explosive manufacturing
  • Fireproof materials
  • Food additive, preservative in cheese
  • Formaldehyde liberator
  • Fuel tablets for camping stoves
  • Hair shampoo and conditioner
  • In China it is used as a deodorant
  • Lubricating and insulating oils 
  • Paint & lacquers
  • Photography
  • Production of Phenol-formaldehyde resins
  • Preservative in cheeses
  • Preservative in cosmetics
  • Preservative in hides
  • Rubber accelerator, to treat hyperhidrosis when applied topically
  • Rubber/textile adhesives
  • Urinary antiseptic, often combined with mandelic acid

Other names for Methenamine:
  • 1,3,5,7-tetraazaadamantane
  • 1,3,5,7-Tetraazatricyclo [,7]-decane
  • Aminoform
  • Ammoform
  • Ammoformaldehyde
  • Cystamin
  • Cystogen
  • Formin
  • Hexamethylenamine
  • Hexamethylenetetramine
  • Hexamine
  • HMT
  • HMTA
  • Uritone
  • Urotropin

Potential cross-reacting/co-reacting substances:
  • Formaldehyde

  • Liberates formaldehyde in the presence of acids
  • May cause airborne contact dermatitis

How safe is it?

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