Carminic Acid GR
Carminic acid (C.I. 75470) GR for analysis and for microscopy. CAS 1260-17-9, pH 1.6 (10 g/l, H₂O, 20 °C).
Manufacturer: Merck
Catalog ID: 100211.0005
Stock: In Stock
Description
| Catalogue Number | 100211 |
| Description | CARMINIC ACID (C.I. 75470) GR FOR ANALYS |
| Overview | The dye Carminic acid (C.I. 75470) is 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. CE-certified, IVD product. |
Product Information
| CAS number | 1260-17-9 |
| EC number | 215-023-3 |
| Hill Formula | C₂₂H₂₀O₁₃ |
| Molar Mass | 492.39 g/mol |
| HS Code | 3203 00 90 |
Applications
| Application | Carminic acid (C.I. 75470) GR for analysis and for microscopy. CAS 1260-17-9, pH 1.6 (10 g/l, H₂O, 20 °C). |
Physicochemical Information
| Melting Point | 136 °C (decomposition) |
| pH value | 1.6 (10 g/l, H₂O, 20 °C) |
| Bulk density | 490 kg/m3 |
| Solubility | 30 g/l |
Storage and Shipping Information
| Storage | Store at +5°C to +30°C. |
Specifications
| Assay (spectrophotometrically; calculated on dried substance) | ≥ 92 % |
| Identity (UV/VIS-Spectrum) | passes test |
| Absorption maximum λ max (Hydrochloric acid 0.06 mol/l) | 492 - 495 nm |
| Spec. Absorptivity A 1%/1cm (λmax; 0.014 g/l; Hydrochloric acid 0.06 mol/l; calc. on dried substance) | 160 - 187 |
| Loss on drying (110 °C) | ≤ 10 % |
| Suitability for microscopy | passes test |
