1.04207
Neutral red (C.I. 50040)
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About This Item
Empirical Formula (Hill Notation):
C15H17ClN4
CAS Number:
Molecular Weight:
288.78
NACRES:
NA.21
UNSPSC Code:
41116130
MDL number:
form
solid
Quality Level
composition
Dye, ≥90% spectrophotometric assay
pH
3.1 (20 °C, 10 g/L in H2O)
solubility
50 g/L
bulk density
350‑500 kg/m3
application(s)
diagnostic assay manufacturing
hematology
histology
storage temp.
2-30°C
InChI
1S/C15H16N4.ClH/c1-9-6-13-15(8-11(9)16)18-14-7-10(19(2)3)4-5-12(14)17-13;/h4-8H,16H2,1-3H3;1H
InChI key
PGSADBUBUOPOJS-UHFFFAOYSA-N
General description
Neutral red (C.I. 50040) - for microscopy Certistain®, is a dry staining dye that is used to prepare a staining solution, that makes target structures in hematological specimen materials evaluable for diagnostic purposes. Neutral red belongs to the group of azines. Neutral red can be used for several staining such as supravital staining of leukocytes .In histology for nuclear staining, fluorescence staining, polychrome staining or for counterstaining in Gram staining. As CERTISTAIN® dye it is chemically quality-certified according to highest standards and strict specifications.
Application
for microscopy Certistain®
Analysis Note
Dye content (spectrophotometrically): ≥ 90 %
Identity (UV/VIS-Spectrum): passes test
Absorption maximum λ max (ethanol 50 %): 540 - 543 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.005 g/l; ethanol 50 %): 1420 - 1610
TLC-Test: passes test
Loss on drying (110 °C): ≤ 12 %
Suitability for microscopy: passes test
Identity (UV/VIS-Spectrum): passes test
Absorption maximum λ max (ethanol 50 %): 540 - 543 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.005 g/l; ethanol 50 %): 1420 - 1610
TLC-Test: passes test
Loss on drying (110 °C): ≤ 12 %
Suitability for microscopy: passes test
Legal Information
CERTISTAIN is a registered trademark of Merck KGaA, Darmstadt, Germany
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Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Regulatory Information
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Certificates of Analysis (COA)
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