quaternium-15 surfactant and preservative molecule formaldehyde releaser. skeletal formula.

quaternium15 surfactant preservative molecule formaldehyde releaser skeletal formula quaternium hexamethylenetetramine chloroallyl chloride quaternary ammonium salt allergy allergen allergic contact skin sensitiser sensitizer sensitisation sensitization patch test dermatology dermatologist hydrogen carbon nitrogen chlorine atoms atomic molecular compound composition chemical chemistry structure line drawing flat icon