Fluorescein (lactone form) is a xanthene dye that is highly fluorescent, detectable even when present in minute quantities.
定義
Fluorescein (lactone form) is a xanthene dye that is highly fluorescent, detectable even when present in minute quantities. Used forensically to detect traces of blood, in analytical chemistry as an indicator in silver nitrate titrations and in microscopy. It has a role as a radioopaque medium and a fluorescent dye. It is a polyphenol, a gamma-lactone, a xanthene dye, an oxaspiro compound, an organic heteropentacyclic compound and a member of 2-benzofurans. It is functionally related to a fluorescein (acid form).
出典: PubChem
米国FDA 物質登録 · UNII TPY09G7XIR · 登録名 Fluorescein · 単一の化学物質
Acid Yellow 73 is classed chemically as a fluoran colour. It conforms to the formula:
化粧品での役割
安全性・規制情報
- 禁止
- ASEAN · アルゼンチン · ブラジル · 欧州連合
- 制限・禁止
- 中国
出典: 韓国食薬処 化粧品規制情報
韓国の有害物質GHS分類なし · 既存化学物質
Restriction II/1332 (when used as a substance in hair dye products)
出典: EU CosIng 成分リスト
詳しい資料 — 表示名・識別番号・物性・試験記録・文献
別名・識別情報
- CAS No.化学物質登録番号
- 2321-07-5
- EC No.EU化学物質目録番号
- 219-031-8
- DTXSID米国EPA化学物質番号
- DTXSID0038887
- DTXCID米国EPA化合物番号
- DTXCID8018887
- IUPAC
- 3',6'-Dihydroxy-3H-spiro[[2]benzofuran-1,9'-xanthen]-3-one
- 分子式
- C20H12O5
- 分子量
- 332.311 g/mol
測定された物性
- 性状
- Fluorescein appears as yellow amorphous solid or orange-red crystals. Latter have greenish-yellow fluorescence by reflected light. Insoluble in water. Soluble in dilute aqueous bases. Very dilute alkaline solutions exhibit intense, greenish-yellow fluorescence by reflected light. Low toxicity. May be sensitive to prolonged exposure to light. · Yellowish-red to red solid, [Merck Index] Orange powder, [MSDSonline]
- 融点
- Decomposes at 554 °F. In sealed tube, melts at 597-601 °F with decomposition (NTP, 1992) · 315 dec °C
- 溶解性
- Insoluble (NTP, 1992) · 600 mg/mL (sodium salt)
- 分子量
- 332.34
物質そのものを測定した値です。安全保健公団（KOSHA）の資料はSDS作成・確認の参考用で、原料商品の規格ではありません。
出典: PubChem · 韓国安全保健公団 SDS