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CoSept™ P

Product Code: 0338
CAS #: 94-13-3
EINECS: 224-208-8
Brand: CoSept™

CoSept™ P is an odorless, extra fine, white powder that is non-hygroscopic and generally recognized as safe (GRAS) for use as a preservative in foods. For over 50 years this neutral ester of para-hydroxybenzoic acid has functioned as an excellent fungistatic agent at low concentrations against a wide range of organisms. It is stable and active from pH 3 to 8, and is often used in conjunction with other additives (e.g., EDTA or its salts, Quaternium-15, Diazolidinyl Urea, Methylparaben) for synergistic effects. In personal care products, CoSept™ M and CoSept™ P have historicallybeen used in combination (0.2% Methylparaben and 0.1% Propylparaben, with levels adjusted to specific circumstances). CoSept™ P has very limited solubility in water, so presolubilization can reduce dissolution time and therefore batching time. The preference for parabens continues due to their 50+ years history of safety and reliability.

CoSept™ P complies with the following regulations for Propylparaben based on the ICH harmonization: USP/NF, FCC, BP, EP, and JP.

Features & Benefits:

  • Fungicidal Agent
  • Product Preservative
Appearance White crystalline powder
Assay / Active Content (%) 98.0 - 102.0
IR Identification Meets NF requirement
Melting Range (°C) 96 - 99
Color of Solution Meets NF requirement
Acidity Meets NF requirement
Residue on Ignition (%) 0.1 maximum
Residual Solvents 0.5% maximum as Loss on Drying
Related Substances Meets NF requirement
Insoluble In
  • Glycerin
  • Water
Soluble In
  • Acetone
  • Alcohol [Ethanol]
  • Ether
  • Propylene Glycol
Toxicology Profile
  • CIR Expert Panel: The CIR Expert Panel found Propylparaben to be safe at up to 25% in present practices of use. See J. Amer. Coll. Toxicol. (JACT) 3(5): 147-209 (1984) for more information.
  • Carton - 25kgs

Regional Approvals:

  • US


  • After Sun Skin Care
  • Bath Additives
  • Beach Wear Sun Care
  • Daily Wear Sun Care
  • Eye Area Color Cosmetics
  • Facial Cleansers
  • Facial Color Cosmetics
  • Facial Skin Care
  • Foot Care
  • Hair Colorants
  • Hair Conditioners
  • Hand & Body Care
  • Lip Care
  • Nail Care
  • Oral care preparations
  • Self-Tanners
  • Shaving Products
  • Styling Aids

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The information presented herein is believed to be accurate and reliable, but no warranty or guarantee, expressed or implied, is made regarding the information or the performance of any product. Further, nothing contained herein shall be taken as any inducement or recommendation to use, manufacture or sell that may infringe any patents or any other proprietary rights now or hereafter in existence, nor to imply compliance with any regulatory requirements

The Hallstar Company - 120 South Riverside Plaza Suite 1620 - Chicago, IL 60606-3911 USA