Sodium beta-Naphthoquinone-4-sulfonate
Structural Formula Vector Image
Title: Sodium b-Naphthoquinone-4-sulfonate
CAS Registry Number: 521-24-4
CAS Name: 3,4-Dihydro-3,4-dioxo-1-naphthalenesulfonic acid sodium salt
Additional Names: sodium 1,2-naphthoquinone-4-sulfonate; 1,2-naphthoquinone-4-sulfonic acid sodium salt; b-naphthoquinone-4-sulfonic acid sodium salt
Molecular Formula: C10H5NaO5S
Molecular Weight: 260.20
Percent Composition: C 46.16%, H 1.94%, Na 8.84%, O 30.74%, S 12.32%
Literature References: Prepn: Folin, J. Biol. Chem. 51, 377 (1922).
Properties: Yellow crystals from dil alc. Readily sol in water; slightly sol in 95% alcohol; moderately sol in acetone; practically insol in ether, chloroform, carbon disulfide, benzene, petr ether. Aq solns fade slowly on exposure to light but may be stabilized by HCl.
Use: Colorimetric determn of amino acids and amines.

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