1.15942
Malachite green oxalate (C.I. 42000)
for microscopy Certistain®
Synonym(s):
Malachite green oxalate (C.I. 42000)
About This Item
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Quality Level
form
solid
composition
Dye, ≥90% spectrophotometric assay
pH
2.4 (24 °C, 10 g/L in H2O)
mp
159 °C
solubility
110 g/L
bulk density
400‑500 kg/m3
εmax
1730-1960 at 616-620 nm in water at 0.003 g/L
application(s)
diagnostic assay manufacturing
hematology
histology
storage temp.
2-30°C
InChI
1S/2C23H25N2.3C2H2O4/c2*1-24(2)21-14-10-19(11-15-21)23(18-8-6-5-7-9-18)20-12-16-22(17-13-20)25(3)4;3*3-1(4)2(5)6/h2*5-17H,1-4H3;3*(H,3,4)(H,5,6)/q2*+1;;;/p-2
InChI key
CNYGFPPAGUCRIC-UHFFFAOYSA-L
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General description
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.
Analysis Note
Identity
- oxalate:
passes test
- UV/VIS-Spectrum: passes test
Absorption maximum λ max (water): 616 - 620 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.003 g/l; water): 1730 - 1960
TLC-Test: passes test
Loss on drying (50 °C / <1 hPa): ≤ 7%
Suitability for microscopy: passes test
Legal Information
signalword
Danger
Hazard Classifications
Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Repr. 2
Storage Class
6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
wgk_germany
WGK 3
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