Eosin Y alcohol soluble 25g

Eriochrome Black T, 25g Sodium 1-[1-Hydroxynaphthylazo]-6-nitro-2-naphthol-4-sulfonate, Sodium 4-[2-(1-hydroxynaphthalen-2-yl)hydrazin-1-ylidene]-7-nitro-3-oxo-3,4-dihydronaphthalene-1-sulfonate C₂₀H₁₂N₃O₇SNa M.W: 461.381 g/mol Cas Number: 1787-61-7 https://pubchem.ncbi.nlm.nih.gov/compound/Eriochrome-black-t

m-cresol purple 5gr Metacresol purple,m-cresolsulfonphthalein C₂₁H₁₈O₅S M.W: 382.43 g·mol⁻¹ Cas Number: 2303-01-7 https://pubchem.ncbi.nlm.nih.gov/compound/m-Cresol-purple  

Ηλιανθίνη 100 ml 0,04% πορτοκαλί του μεθυλίου, 4-διμεθυλ-αμινο-αζω-βενζενο-4'-σουλφανιλικό νάτριο, methyl orange, Sodium 4-{[4-(dimethylamino)phenyl]diazenyl}benzene-1-sulfonate C₁₄H₁₄N₃NaO₃S M.W: 327.33 g·mol⁻¹ Cas Number: 547-58-0 https://pubchem.ncbi.nlm.nih.gov/compound/Methyl-orange