1.04211

Carminic acid (C.I. 75470)

• 실험식(Hill 표기법): C₂₂H₂₀O₁₃
• CAS Number: 1260-17-9
• Molecular Weight: 492.39
• MDL number: MFCD00167028
• UNSPSC 코드: 12352106
• NACRES: NA.21

속성

• 분석: ≥92%
• Quality Level: 200
• 양식: solid
• pH: 1.6 (20 °C, 10 g/L in H₂O)
• mp: 136 °C (decomposition)
• solubility: 30 g/L
• 벌크 밀도: 490 kg/m³
• 응용 분야: diagnostic assay manufacturing; hematology; histology
• 저장 온도: 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

설명

일반 설명

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.

애플리케이션

GR for analysis and for microscopy

분석 메모

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

안전성 정보

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 2