Imidazolidinyl urea USP32

Imidazolidinyl urea USP32 Incl adopted name: Imidazolidinyl urea

USP/NF Designation:Imidurea,NF

CAS NO: 39236-46-9

Molecular formula: C11H16N8O8

Molecular weight: 388.2935

EINECS:254-372-6

Physical Characteristics

(Not Necessarily Specifications)

Color: White

Odor: None or characteristically mild

Appearance: Fine, free flowing powder

Nitrogen: 26.0-28.0%

pH:6.0-7.5(1% aqueous solution)

Loss on drying: 3.0% maximum

Residue on Ignition: 3.0% maximum

Heavy Metals:10 ppm maximum

Imidazolidinyl urea is a white, free-flowing hygroscopic powder that is very soluble in water. It is compatible with essentially all cosmetic ingredients, including surfactants, proteins, and other special ingredients.

Imidazolidinyl urea is very effective against Gram-negative bacteria, including Pseudomonas aeruginosa.

Imidazolidinyl urea acts synergistically with other preservatives. With the parabens it provides a broad spectrum of activity against bacteria, yeast and mold. This synergistic activity has made the IMIDAZOLIDINYL UREA paraben combination one of the most widely used cosmetic preservative systems in the world.