Preservatives

Bronopol (INN) is an organic compound that is used as an antimicrobial.

Natamycin (INN), also known as pimaricin and sometimes sold as Natacyn, is a naturally occurring antifungal agent produced during fermentation by the bacterium Streptomyces natalensis, commonly found in soil.

Sodium nitrate is the chemical compound with the formula NaNO3.

Chlorhexidine is an antibacterial used as an antiseptic and for other applications.

Lactic acid is an organic compound with the formula CH3CH(OH)CO2H.

Potassium nitrate is a chemical compound with the chemical formula KNO3.

Methylchloroisothiazolinone (5-chloro-2-methyl-4-isothiazolin-3-one), also referred to as MCI, is a preservative with antibacterial and antifungal effects within the group of isothiazolinones.

Methylparaben, also methyl paraben, one of the parabens, is a preservative with the chemical formula CH3(C6H4(OH)COO).

Sorbic acid, or 2,4-hexadienoic acid, is a natural organic compound used as a food preservative.

Sodium bisulfite (sodium hydrogen sulfite) is a chemical compound with the chemical formula NaHSO3.

Ethylenediaminetetraacetic acid (EDTA), also known by , is an aminopolycarboxylic acid and a colourless, water-soluble solid.

Benzalkonium chloride, also known as BZK, BKC, BAC, alkyldimethylbenzylammonium chloride and ADBAC, is a type of cationic surfactant.

Butylated hydroxyanisole (BHA) is an antioxidant consisting of a mixture of two isomeric organic compounds, 2-tert-butyl-4-hydroxyanisole and 3-tert-butyl-4-hydroxyanisole.

Glycolic acid (hydroacetic acid or hydroxyacetic acid); chemical formula C2H4O3 (also written as HOCH2CO2H), is the smallest α-hydroxy acid (AHA).

Potassium nitrite (distinct from potassium nitrate) is the inorganic compound with the chemical formula KNO2.

Phytic acid (known as inositol hexakisphosphate (IP6), inositol polyphosphate, or phytate when in salt form), discovered in 1903, a saturated cyclic acid, is the principal storage form of phosphorus in many plant tissues, especially bran and seeds.

Potassium sorbate is the potassium salt of sorbic acid, chemical formula CH3CH=CH−CH=CH−CO2K.

Potassium benzoate (E212), the potassium salt of benzoic acid, is a food preservative that inhibits the growth of mold, yeast and some bacteria.

Calcium benzoate refers to the calcium salt of benzoic acid.

Calcium tartrate is a byproduct of the wine industry, prepared from wine fermentation dregs.

Ammonium benzoate, a white solid, is the ammonium salt of benzoic acid.

Hexamethylenetetramine or methenamine is a heterocyclic organic compound with the formula (CH2)6N4.

Sodium nitrite is the inorganic compound with the chemical formula NaNO2.

Sodium benzoate is a substance which has the chemical formula NaC7H5O2.

Tiabendazole (INN, BAN), thiabendazole (AAN, USAN), TBZ (and the trade names Mintezol, Tresaderm, and Arbotect) is a fungicide and parasiticide.

Propylparaben, the n-propyl ester of p-hydroxybenzoic acid, occurs as a natural substance found in many plants and some insects, although it is manufactured synthetically for use in cosmetics, pharmaceuticals and foods.

Sulfur dioxide (also sulphur dioxide) is the chemical compound with the formula SO2.

Benzyl alcohol is an aromatic alcohol with the formula C6H5CH2OH.

Polyaminopropyl biguanide (PAPB) is a disinfectant and a preservative used for disinfection on skin and in cleaning solutions for contact lenses.

Chloroacetamide (2-chloroacetamide) is a chlorinated organic compound with the molecular formula C2H4ClNO used as a herbicide and preservative.

Imidazolidinyl urea is an antimicrobial preservative used in cosmetics.

Methyldibromo glutaronitrile (MDBGN) is a widely used preservative.

Ethylparaben (ethyl para-hydroxybenzoate) is the ethyl ester of p-hydroxybenzoic acid.

Isothiazolinone is a heterocyclic chemical compound.

Nisin is a polycyclic antibacterial peptide produced by the bacterium Lactococcus lactis that is used as a food preservative.

Dimethyl dicarbonate (DMDC) is an organic compound which is a colorless liquid with a sharp odor at room temperature.

Cetylpyridinium chloride (CPC) is a cationic quaternary ammonium compound used in some types of mouthwashes, toothpastes, lozenges, throat sprays, breath sprays, and nasal sprays.

DMDM hydantoin is an antimicrobial formaldehyde releaser preservative with the trade name Glydant.

Propyl benzoate is an organic chemical compound used as a food additive.

Quaternium-15 (systematic name: hexamethylenetetramine chloroallyl chloride) is a quaternary ammonium salt used as a surfactant and preservative in many cosmetics and industrial substances.

Isopropylparaben is a paraben.

2-Phenylphenol, or o-phenylphenol, is an organic compound that consists of two linked benzene rings and a phenolic hydroxyl group.

Heptylparaben (heptyl p-hydroxybenzoate) is a compound with formula C7H15(C6H4OHCOO).

Iodopropynyl Butyl Carbamate (IPBC) is a water-soluble preservative used globally in the paints & coatings, wood preservatives, personal care, and cosmetics industries.

Methylisothiazolinone, MIT, or MI, (sometimes erroneously called methylisothiazoline), is a powerful synthetic biocide and preservative within the group of isothiazolinones, which is used in numerous personal care products and a wide range of industrial applications.

Benzethonium chloride, also known as hyamine is a synthetic quaternary ammonium salt.

Diazolidinyl urea is an antimicrobial preservative used in cosmetics.

tert-Butylhydroquinone (TBHQ, tertiary butylhydroquinone) is an aromatic organic compound which is a type of phenol.