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| Catalog Number | CI-GU-0022 |
| Product Name | Dedm Hydantoin |
| CAS | 26850-24-8 |
| Structure |  |
| Synonyms | 1,3-Bis(2-hydroxyethyl)-5,5-dimethylimidazolidine-2,4-dione |
| IUPAC Name | 1,3-bis(2-hydroxyethyl)-5,5-dimethylimidazolidine-2,4-dione |
| Molecular Weight | 216.23 g/mol |
| Molecular Formula | C9H16N2O4 |
| InChI | InChI=1S/C9H16N2O4/c1-9(2)7(14)10(3-5-12)8(15)11(9)4-6-13/h12-13H,3-6H2,1-2H3 |
| InChI Key | ATIAIEWDRRJGSL-UHFFFAOYSA-N |
| Boiling Point | 355.8±52.0 °C |
| Purity | 95% |
| Density | 1.254 g/mL |
| Appearance | Solid |
| Isomeric SMILES | CC1(C(=O)N(C(=O)N1CCO)CCO)C |
| pKa | 14.49±0.10 |
What is the primary function of Dedm Hydantoin in personal care products?
Dedm Hydantoin functions as an antimicrobial preservative in cosmetic and personal care products. It helps prevent the growth of harmful bacteria, yeast, and fungi, thereby slowing and preventing spoilage in items like shampoos, hair conditioners, and skincare products. By releasing small quantities of formaldehyde over time, it extends the shelf life and maintains the safety of these products.
How is Dedm Hydantoin produced?
Dedm Hydantoin is synthesized by reacting multiple moles of formaldehyde with dimethyl hydantoin. The process involves using a concentrated formaldehyde solution at specific temperatures and pH levels to produce the compound effectively.
Is Dedm Hydantoin safe to use in cosmetic products?
According to the Cosmetic Ingredient Review (CIR), Dedm Hydantoin is considered safe when used at current levels, which is around 0.074% in formulations. It is also approved by the European Union's Cosmetics Directive for use at concentrations up to 0.6%. However, due to the formaldehyde release, some individuals may experience skin sensitivity. Therefore, the CIR has restricted free formaldehyde concentration to 0.2% to ensure safety for most consumers.
Why is Dedm Hydantoin referred to as a "formaldehyde donor"?
Dedm Hydantoin is termed a "formaldehyde donor" because it gradually releases formaldehyde in small amounts over the product's shelf life. This release plays a crucial role in its function as a preservative and antimicrobial agent, ensuring the product remains safe and effective over time.
Can Dedm Hydantoin cause skin irritation?
While Dedm Hydantoin is generally safe for most consumers, there have been observations of skin irritation in some instances. This effect is likely related to the formaldehyde released from the compound. The CIR Expert Panel has evaluated formaldehyde's safety in personal care products, deeming it safe for the majority of users when restricted to appropriate concentrations.
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