1.05235

Cresyl violet (acetate)

for microscopy Certistain^®

• Synonym(s): Cresyl violet (acetate)
• Empirical Formula (Hill Notation): C₁₈H₁₅N₃O₃
• CAS Number: 10510-54-0
• Molecular Weight: 321.33
• MDL number: MFCD00013151
• UNSPSC Code: 41116130
• EC Index Number: 234-043-3

Properties

• Quality Level: 400
• form: solid
• composition: Dye, ≥70% spectrophotometric assay
• pH: 3 (20 °C, 10 g/L in H₂O)
• mp: 140-143 °C
• solubility: 70 g/L
• bulk density: 460 kg/m³
• εmax: 980-1400 at 596-599 nm in 50% ethanol at 0.005 g/L
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: 2-30°C
• InChI: 1S/C16H12N3O.C2H4O2/c17-9-5-6-13-14(7-9)20-15-8-12(18)10-3-1-2-4-11(10)16(15)19-13;1-2(3)4/h1-8H,17-18H2;1H3,(H,3,4)/q+1;/p-1
• InChI key: XKOCOMKJPWEOHX-UHFFFAOYSA-M

Description

General description

The dry dye Cresyl violet (acetate) for microscopy Certistain^®, is used for the preparation of a staining solution that can be used for the staining of nuclei and Nissl bodies. Cresyl violet (acetate) belongs to the group of oxazine dyes. As a 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. For more details, please see instructions for use (IFU). The IFU can be downloaded from this webpage.

Analysis Note

Dye content (spectrophotometrically): ≥ 70%
Identity
- acetate:
passes test
- UV/VIS-Spectrum: passes test
Absorption maximum λ max (ethanol 50%): 596 - 599 nm
Spec. Absorptivity A 1%/1cm (λ_max; 0.005 g/l; ethanol 50%): 980 - 1400
TLC-Test: passes test
Loss on drying (50 °C / <1 hPa): ≤ 25%
Suitability for microscopy: passes test

Legal Information

CERTISTAIN is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(C): Not applicable