Chemicals
Showing 321–340 of 466 results
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Chemicals
Methyl Red
Methyl red, also called C.I. Acid Red 2, is an indicator dye that turns red in acidic solutions. It is an azo dye, and is a dark red crystalline powder. Methyl red is a pH indicator; it is red in pH under 4.4, yellow in pH over 6.2, and orange in between, with a pKₐ of 5.1Formula: C15H15N3O2SKU: n/a -
Chemicals
Methylene Blue
Methylene blue, also known as methylthioninium chloride, is a medication and dye. As a medication, it is mainly used to treat methemoglobinemia. Specifically, it is used to treat methemoglobin levels that are greater than 30% or in which there are symptoms despite oxygen therapy.Formula: C16H18ClN3SSKU: n/a -
Chemicals
Millon’s Reagent
Millon’s reagent is an analytical reagent used to detect the presence of soluble proteins. A few drops of the reagent are added to the test solution, which is then heated gently. A reddish-brown coloration or precipitate indicates the presence of tyrosine residue which occur in nearly all proteins.
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Chemicals
Neutral Red
Neutral red (toluylene red, Basic Red 5, or C.I. 50040) is a eurhodin dye used for staining in histology. It stains lysosomes red. It is used as a general stain in histology, as a counterstain in combination with other dyes, and for many staining methods.Formula: C15H17ClN4SKU: n/a -
Chemicals
Neutral Red Solution
Neutral red (toluylene red, Basic Red 5, or C.I. 50040) is a eurhodin dye used for staining in histology. It stains lysosomes red. It is used as a general stain in histology, as a counterstain in combination with other dyes, and for many staining methods.Formula: C15H17ClN4SKU: n/a -
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Chemicals
Nickel Nitrate
Nickel nitrate is the inorganic compound Ni(NO₃)₂ or any hydrate thereof. The anhydrous form is not commonly encountered, thus “nickel nitrate” usually refers to nickel(II) nitrate hexahydrate. The formula for this species is written in two ways: Ni(NO₃)₂6H₂O and, more descriptively [Ni(H₂O)₆](NO₃)₂.Formula: Ni(NO3)2SKU: n/a -
Chemicals
Nitric Acid
Nitric acid, also known as aqua fortis and spirit of niter, is a highly corrosive mineral acid. The pure compound is colorless, but older samples tend to acquire a yellow cast due to decomposition into oxides of nitrogen and water. Most commercially available nitric acid has a concentration of 68% in water.Formula: HNO3SKU: n/a
