Nigrosin 25gm
Nigrosine (C.I. 50420) water-soluble for microscopy Certistain®. CAS 101357-32-8, pH 10 (10 g/l, H₂O, 20 °C).
Manufacturer: Merck
Catalog ID: 115924.0025
Stock: In Stock
Description
| Catalogue Number | 115924 |
| Description | NIGROSINE (C.I. 50420) WATER-SOLUBLE FOR |
| Overview | The CERTISTAIN® dry dye Nigrosin (C.I. 50420) (watersoluble) is used for the preparation of a staining solution for the visualization of capsule (negative capsule staining) in bacteriological material of human origin. As CERTISTAIN® dye it is chemically quality-certified according to highest standards and strict specifications. As an IVD product and CE registered, it can be used hassle-free in diagnostics and laboratory accreditations. |
Product Information
| CAS number | 101357-32-8 |
| EC number | 309-930-4 |
| HS Code | 3204 12 00 |
Applications
| Application | Nigrosine (C.I. 50420) water-soluble for microscopy Certistain®. CAS 101357-32-8, pH 10 (10 g/l, H₂O, 20 °C). |
Physicochemical Information
| pH value | 10 (10 g/l, H₂O, 20 °C) |
| Bulk density | 750 kg/m3 |
| Solubility | 10 g/l |
Storage and Shipping Information
| Storage | Store at +5°C to +30°C. |
Specifications
| Identity - sodium | passes test |
| - UV/VIS-Spectrum | passes test |
| Absorption maximum λ max (ethanol 50 %) | 570 - 580 nm |
| Spec. Absorptivity A 1%/1cm (λmax; 0.025 g/l; ethanol 50 %) | 200 - 300 |
| TLC-Test | passes test |
| Loss on drying (110 °C) | ≤ 15 % |
| Suitability for microscopy | passes test |
