1.04211

Carminic acid (C.I. 75470)

• 実験式（ヒル表記法）: C₂₂H₂₀O₁₃
• CAS番号: 1260-17-9
• 分子量: 492.39
• MDL番号: MFCD00167028
• UNSPSCコード: 12352106
• NACRES: NA.21

特性

• アッセイ: ≥92%
• 品質水準: 200
• フォーム: solid
• pH: 1.6 (20 °C, 10 g/L in H₂O)
• mp: 136 °C (decomposition)
• 溶解性: 30 g/L
• かさ密度: 490 kg/m³
• アプリケーション: diagnostic assay manufacturing; hematology; histology
• 保管温度: 2-30°C
• 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-NGOCYOHBSA-N

詳細

詳細

The dye Carminic acid (C.I. 75470) GR for analysis and for microscopy, is a dry dye used to prepare dye-solutions. Together with a mordant solution of lithium, aluminium or boron it is used as a lake for staining. Carminic acid is applied for various stainings, e.g. for the detection of glycogen and mucous substances (Best′s carmine), for nucelar staining or for vital staining. The dye has a constant dye content and a reliable high quality, which is one of the major precondition for a reproducible diagnostic staining.

アプリケーション

GR for analysis and for microscopy

アナリシスノート

Assay (spectrophotometrically; calculated on dried substance)≥ 92 %Identity (UV/VIS-Spectrum)passes testAbsorption maximum λ max (Hydrochloric acid 0.06 mol/l)492 - 495 nmSpec. Absorptivity A 1%/1cm (λ_max; 0.014 g/l; Hydrochloric acid 0.06 mol/l; calc. on dried substance)160 - 187Loss on drying (110 °C)≤ 10 %Suitability for microscopypasses test

安全性情報

• 保管分類コード: 11 - Combustible Solids
• WGK: WGK 2