Product Information
ApplicationCertistain® dry dye used as an overview stain and as a counterstain
Biological Information
Physicochemical Information
Melting Point180 °C (decomposition)
pH value3 (10 g/l, H₂O, 20 °C)
Bulk density400 - 600 kg/m3
Solubility50 g/l
Materials Information
Toxicological Information
LD 50 oralLD50 Rat 1180 mg/kg
Safety Information according to GHS
Hazard Pictogram(s) Hazard Pictogram(s)
Hazard Statement(s)H302: Harmful if swallowed.
Signal WordWarning
Storage class10 - 13 Other liquids and solids
WGKWGK 2 obviously hazardous to water
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
Safety Information
Hazard Symbols Hazard SymbolsHarmful
Categories of dangerharmful
R PhraseR 22
Harmful if swallowed.
Product Usage Statements
Storage and Shipping Information
StorageStore at +5°C to +30°C.
Packaging Information
Transport Information
Supplemental Information
Dye content (spectrophotometrically)≥ 82 %
- Chloride

passes test
- UV/VIS-Spectrumpasses test
Absorption maximum λ max (ethanol 50 %)660 - 665 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.003 g/l; ethanol 50 %)2250 - 2750
TLC-Testpasses test
Loss on drying (110 °C)10 - 15 %
Suitability for microscopypasses test


Methylene blue (C.I.52015) SDS


Safety Data Sheet (SDS) 

Methylene blue (C.I.52015) Certificates of Analysis

Product Number PackagingSpecificationLot Number
1159430025 Glass bottlePDF Specification Document
1159430100 Glass bottlePDF Specification Document
1159431000 Metal canPDF Specification Document

Instructions for Use

115943 Methylene blue (C.I. 52015) for microscopy Certistain®

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Reagents, Chemicals and Labware > Inorganic Reagents > Safety Products and General Applications > Indicators > Redox Indicators
IVD/OEM Materials & Reagents > Microscopy > Dyes for Microscopy > Certistain® Dyes