イミド尿素

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Warning

• 危険有害性情報

  H317：アレルギー性皮膚反応を起こすおそれ

• 注意書き

  P280：保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。

イミド尿素 価格

MSDS Information

• N,N-methylenebis N'-1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl urea

イミド尿素 化学特性,用途語,生産方法

• 外観

  白色～ほとんど白色粉末～結晶

• 定義

  本品は、次の化学式で表される複素環置換尿素である。

• 化粧品の成分用途

  防腐剤

• 効能

  抗菌薬

• 化学的特性

  Imidazolidinyl urea is a stable white, free-flowing odorless powder with a mild odour. It does not absorb ultraviolet light, and decomposes at temperatures above 160°C (Sheppard and Wilson, 1974). In aqueous solution the pH is close to neutrality. It is mainly contained in cosmetics and liquid soaps.

• 定義

  ChEBI: Imidazolidinyl urea is a member of ureas. It has a role as an antimicrobial agent. It is an antimicrobial preservative used in cosmetics. It acts as a formaldehyde releaser.

• 調製方法

  Imidurea is produced by the condensation of allantoin with formaldehyde.

• 一般的な説明

  Imidazolidinyl Urea is a non-aromatic, polar, hydrophilic antimicrobial compound. It is used as a preservative in a variety of applications, most notably in personal care products and cosmetics. It is effective against a broad spectrum of bacteria, fungi and yeast. It is used as a preservative in cosmetics, shampoos, deodorants, body lotions, and in some therapeutic topical ointments and creams.

• 応用例（製薬）

  N,N-methylenebis N'-1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl urea is a broad-spectrum antimicrobial preservative used in cosmetics and topical pharmaceutical formulations; typical concentrations used are 0.03–0.5% w/w. It is effective between pH 3–9 and is reported to have synergistic effects when used with parabens.

• 接触アレルゲン

  Imidazolidinyl urea, a formaldehyde releaser related to diazolidinyl urea (see above), is used as an antimicrobial agent very active against Gram-positive and Gram-negative bacteria, used as a synergist in combination with para- bens. It is used as a preservative in aqueous products, mainly in cosmetics, toiletries, and liquid soaps.

• 安全性

  Imidurea is widely used in cosmetics and topical pharmaceutical formulations, and is generally regarded as a nontoxic and nonirritant material. However, there have been some reports of contact dermatitis associated with imidurea, although these are relatively few considering its widespread use in cosmetics. Although imidurea releases formaldehyde, it does not appear to be associated with cross-sensitization with formaldehyde or other formaldehyde-releasing compounds.
  LD50 (mouse, oral): 7.2 g/kg
  LD50 (rabbit, skin): > 8 g/kg
  LD50 (rat, oral): 11.3 g/kg

• 貯蔵

  Imidurea is hygroscopic and should be stored in a well-closed container in a cool, dry place.

• 不和合性

  N,N-methylenebis N'-1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl urea is incompatible with strong oxidants. It is compatible with other preservatives including sorbic acid and quaternary ammonium compounds. It is also compatible with other pharmaceutical and cosmetic excipients including proteins, nonionic surfactants, and lecithin.

• 規制状況(Regulatory Status)

  Included in the FDA Inactive Ingredients Database (topical preparations). Accepted for use in cosmetics in Europe and the USA. Included in the Canadian List of Acceptable Non-medicinal Ingredients.

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