Diazolidinylurea (Germall 11) home ICD10: L23.9


Formula CAS
C6H14N4O7 78491-02-8



Background
Diazolidinylurea (Germall 11) is broad-spectrum preservative used in cosmetics and pharmaceutical preparations. It is especially active against gram-negative bacteria and is often combined with parabens. Diazolidinylurea is the newest and most active member of the imidazolidinyl urea group. It has been used since 1982. Diazolidinylurea may be a stronger sensitizer than imidazolidinyl urea.

Synonyms
2,5-Diazolidinylurea
Diazolidinyl Urea
Germaben II
Germall II
N,N'-Bis (hydroxymethyl) urea
N-(hydroxymethyl)-N-(1,3-dihydroxymethyl-2,5-dioxo-4-imidazolidinyl)-N'- (hydroxymethyl) urea

Uses
Preservative used in cosmetics, creams and lotions

Cross-Reactions
Imidazolidinylurea
Formaldehyde

Unusual Reactions

Back to list of contact allergens


Referenties
1. Kantor, G.R., et al., Acute allergic contact dermatitis from diazolidinyl urea (Germall II) in a hair gel. Journal of the American Academy of Dermatology, 1985. 13(1): p. 116-9.
2. Stephens, T.J., K.D. Drake, and R.B. Drotman, Experimental delayed contact sensitization to diazolidinyl urea (Germall II) in guinea pigs. Contact Dermatitis, 1987. 16(3): p. 164-8.
3. Zaugg, T. and T. Hunziker, Germall II and triclosan [letter]. Contact Dermatitis, 1987. 17(4): p. 262.
4. de Groot, A.C., et al., Contact allergy to diazolidinyl urea (Germall II). Contact Dermatitis, 1988. 18(4): p. 202-5.
5. Nethercott, J.R., G. Nield, and D.L. Holness, A review of 79 cases of eyelid dermatitis. Journal of the American Academy of Dermatology, 1989. 21(2 Pt 1): p. 223-30.
6. Tosti, A., S. Restani, and M. Lanzarini, Contact sensitization to diazolidinyl urea: report of 3 cases. Contact Dermatitis, 1990. 22(2): p. 127-8.
7. Hectorne, K.J. and A.F. Fransway, Diazolidinyl urea: incidence of sensitivity, patterns of cross-reactivity and clinical relevance. Contact Dermatitis, 1994. 30(1): p. 16-9.


Author(s):
Allergology: background information on allergens.

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