3000. Diazolidinyl Urea

Nomenclature

CAS number: 78491-02-8
N-[1,3-Bis(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl]-N,N′-bis(hydroxymethyl)urea; N-(hydroxymethyl)-N-(1,3-dihydroxymethyl-2,5-dioxo-4-imidazolidinyl)-N′-(hydroxymethyl)urea; Germall II (Sutton).
C8H14N4O7; mol wt 278.22.
C 34.54%, H 5.07%, N 20.14%, O 40.25%.

Description and references

Member of a family of heterocyclic substituted urea compounds with formaldehyde releasing activity. Prepn: P. A. Berke, W. E. Rosen, WO 8100566; eidem, US 4271176 (both 1981 to Sutton). Chemistry, toxicity and antimicrobial activity: eidem, Cosmet. Toiletries 97, 49 (1982). Determn in cosmetic products: R. J. Geise et al., J. Soc. Cosmet. Chem. 45, 173 (1994). Review of use and safety assessment: J. Am. Coll. Toxicol. 9, 229-245 (1990).

Chemical structure

Properties

Fine, white, free-flowing powder. Sol in water as a 30% soln. Insol in fats. LD50 orally in rats: 2.57 g/kg; dermally in rabbits: >2.0 g/kg (Berke, Rosen).

Use

Antimicrobial preservative in cosmetics and toiletries.