229253

Carminic acid

≥90% (HPLC)

• 別名: ナチュラルレッド4
• 実験式（ヒル表記法）: C₂₂H₂₀O₁₃
• CAS番号: 1260-17-9
• 分子量: 492.39
• カラーインデックス番号: 75470
• Beilstein: 71651
• EC Number: 215-023-3
• MDL番号: MFCD00167028
• UNSPSCコード: 12171500
• PubChem Substance ID: 24853740
• NACRES: NA.47

特性

• 品質水準: 100
• アッセイ: ≥90% (HPLC)
• フォーム: powder
• 光学活性: [α]20/D +3.1°, c = 1 in H₂O
• 色: purple to red-purple; red to very dark red
• mp: 136 °C
• 溶解性: 1 N acetic acid: 1%, clear to hazy, red
• λmax: 495 nm
• &ε; （減衰係数）: ≥13000 at 222-228 nm in ethanol at 0.03 g/L; ≥18000 at 275-281 nm in ethanol at 0.03 g/L
• アプリケーション: diagnostic assay manufacturing; hematology; histology
• 保管温度: room temp
• SMILES記法: Cc1c(C(O)=O)c(O)cc2C(=O)c3c(O)c(O)c([C@@H]4O[C@H](CO)[C@@H](O)[C@H](O)[C@H]4O)c(O)c3C(=O)c12
• InChI: 1S/C22H20O13/c1-4-8-5(2-6(24)9(4)22(33)34)13(25)10-11(15(8)27)16(28)12(18(30)17(10)29)21-20(32)19(31)14(26)7(3-23)35-21/h2,7,14,19-21,23-24,26,28-32H,3H2,1H3,(H,33,34)/t7-,14-,19+,20-,21+/m1/s1
• InChI Key: DGQLVPJVXFOQEV-JNVSTXMASA-N

詳細

詳細

Carmine is a cochineal product usually furnished as an aluminum and calcium salt of carminic acid. Carminic acid is used for human-medical cell diagnosis and serves the purpose of the histological investigation of sample material of human origin. It is suitable for staining nuclei in histological sections. It is utilized in various staining methods including the procedure for detection of glycogen and mucous substances (Best′s carmine), for nuclear staining, or vital staining.

アプリケーション

Carminic acid (CI 75470) is used in Orth′s lithium carmine technique for nuclear staining, Best′s stain for glycogen, and Southgates′s mucicarmine method.

安全性情報

• 保管分類コード: 11 - Combustible Solids
• WGK: WGK 2
• 個人用保護具 (PPE): Eyeshields, Gloves, type N95 (US)