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R222.00 Ex VAT
- Formula: C16H18ClN3S Molar mass: 319,85 g/mol Density: 1.0 g/mL at 20 ��C Methylene Blue (Zinc Free) is a laboratory-grade dye that serves as both a biological stain and a redox indicator. Its zinc-free formulation ensures greater purity, making it suitable for sensitive applications such as staining cells and tissues in microbiology and histology, as well as for use in redox…
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R169.00 Ex VAT
- Formula: C20H12N3O7SNa Molar mass: 461,381 g/mol Appearance: dark red/brown powder Acidity (pKa): 6.2, 11.55 UN number: 2923 Eriochrome Black T is a complexometric indicator commonly employed in tests for water hardness, particularly during EDTA titrations. It transitions from wine-red to blue as it binds and subsequently releases metal ions such as calcium and magnesium, facilitating the determination of their concentration…
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R127.00 Ex VAT
- Appearance: White powder Density: 1,3 g/cm�� Solubility in other solvents: Insoluble in benzene and hexane; very soluble in ethanol & ether; slightly soluble in DMSO Solubility in water: 400 mg/l Molar mass: 318,31 g/mol Melting point: 260 ��C Phenolphthalein is a commonly used pH indicator in acid-base titrations. It remains colorless in acidic solutions and changes to pink in basic…
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R126.00 Ex VAT
- Molar mass: 647.89 g/mol Formula: C20H6Br4Na2O5 Density: 1.018 g��cm���3 Boiling point: 682,3 ��C Melting point: 295,5 ��C Eosin Yellow is a vivid red or pink fluorescent dye widely used in biological staining. It binds to cytoplasmic elements and extracellular matrix proteins, making it effective for highlighting cellular structures in tissue samples. It is particularly useful when paired with hematoxylin in…
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R92.00 Ex VAT
- Formula: C15H15N3O2 Molar mass: 269,3 g/mol Solubility: soluble in ethanol Density: 791 kg/m�� Melting point: 179���182 ��C Methyl Red is a pH indicator dye that shifts color according to acidity levels. It appears red in acidic solutions (pH below 4.4) and yellow in basic solutions (pH above 6.2), featuring an orange transition in between. This dye is widely used in…
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