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Merck

1.04184

Cresyl violet (acetate)

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About This Item

Empirical Formula (Hill Notation):
C18H15N3O3
CAS Number:
10510-54-0
Molecular Weight:
321.33
UNSPSC Code:
41116130
NACRES:
NA.21
MDL number:
MFCD00013151

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SMILES string

Nc1c2c(c3nc4c([o+]c3c1)cc(cc4)N)cccc2.[O-]C(=O)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

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

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

2-30°C

Quality Level

200

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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.

Application

for microscopy Certistain®

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 (λmax; 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

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

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