Naphthol Yellow S, for microscopy (Hist.), for the precipitation (of amino acids and peptides)

Code: 70540-100G D2-231

Analysis Note

λmax. ~428 nm/~392 nm; E(1%,1 cm) ~275-425/~250-400 (H2O)

Application

Naphthol yellow S has been used as...


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Analysis Note

λmax. ~428 nm/~392 nm; E(1%,1 cm) ~275-425/~250-400 (H2O)

Application

Naphthol yellow S has been used as a staining agent in fixed human embryonic stem cell-derived cardiomyocytes.

Biochem/physiol Actions

Naphthol yellow S (NYS) is used as a stain for protein basic groups. It is an acidic dye and forms a NYS-protein complex at acidic pH. Combination of feulgen and NYS provides DNA to protein ratio.

εmax≥? 250 at 387-397 nm in water, ≥275 at 423-433 nm in water
application(s)diagnostic assay manufacturinghematologyhistology
formpowder
gradefor the precipitation (of amino acids and peptides), for microscopy (Hist.)
InChI keyCTIQLGJVGNGFEW-UHFFFAOYSA-L
InChI1S/C10H6N2O8S.2Na/c13-10-7-3-5(21(18,19)20)1-2-6(7)8(11(14)15)4-9(10)12(16)17;;/h1-4,13H,(H,18,19,20);;/q;2*+1/p-2
Quality Level200
SMILES string[Na+].[Na+].[O-]c1c(cc([N+]([O-])=O)c2ccc(cc12)S([O-])(=O)=O)[N+]([O-])=O
solubilitymethanol: water (1:1): 0.5 g/10 mL, clear
storage temp.room temp
Cas Number846-70-8
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