Benzoic acid
CAS 65-85-0
Recorded function: Organic-acid intermediate for preservative and resin development
Documented general function only; supplier-grade and application scope remain unchanged.
LEARN / MATERIAL FUNCTION
Preservative
Explore existing library materials with a source-linked preservative assignment.
These assignments describe a documented material function. The individual source may concern a particular supplier grade or application. Open a material’s evidence before using it in a formula.
Materials with this function
9 source-linked library assignments. Matching a function does not establish compatibility, safety or a greener replacement.
Methylparaben
CAS 99-76-3
Recorded function: Preservative ingredient for formulation development
Methylparaben is an antimicrobial preservative for formulated products. Clariant identifies activity against bacteria and fungi and applications in skin, hair, cleansing and color-cosmetic products.
Pentachlorophenol
CAS 87-86-5
Recorded function: Chemical reference for analytical and environmental research
Pentachlorophenol has been used as an industrial wood preservative, particularly for utility poles and cross-arms. Laboratory references support analytical and toxicology research. The US EPA phase-out permits wood-treatment facilities to use existing stocks only through February 28, 2027, following the February 29, 2024 production/sale/distribution cutoff.
Phenoxyethanol
CAS 122-99-6
Recorded function: Solvent and preservative ingredient for formulation development
Antimicrobial preservative and solvent. BASF describes phenoxyethanol in topical antiseptics/disinfectants and preservation of topical medical formulations; the GMP product has its own pharmaceutical quality package. These applications do not authorize the archived laboratory reagent for human use.
Potassium sorbate
CAS 24634-61-5
Recorded function: Sorbate salt for preservative formulation development
Documented general function only; supplier-grade and application scope remain unchanged.
Propylparaben
CAS 94-13-3
Recorded function: Preservative ingredient for formulation development
Preservative, particularly in cosmetic formulations. Propylparaben is the n-propyl ester of p-hydroxybenzoic acid; it is not isopropylparaben, a sodium salt or a mixture of parabens. The archived Wako material is a research reagent.
Sodium azide
CAS 26628-22-8
Recorded function: Inorganic azide reference for controlled laboratory research
Sodium azide is a laboratory reagent and preservative in hospital and research settings. CDC also describes its established use as an airbag gas-generating chemical; that is an application history, not a claim that every modern airbag contains it.
Sodium benzoate
CAS 532-32-1
Recorded function: Benzoate salt for preservative formulation development
Documented general function only; supplier-grade and application scope remain unchanged.
Sorbic acid
CAS 110-44-1
Recorded function: Organic-acid ingredient for preservative formulation development
Sorbic acid is a preservative used to inhibit molds and yeasts. The selected CAS is the acid, not potassium sorbate or a blended preservative.