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2-naftool
2-naphthol

2-naftool ≤ 0,2
2-naphtol ≤ 0,2 %

1-naftool (ci 76605)
1-naphthol (ci 76605)

1-naftool ja selle soolad
1-naphthol and its salts

5,8-dihüdro-1-naftool
5,8-dihydro-1-naphthol

4-[(4-etoksüfenüül)aso]naftool
4-[(4-ethoxyphenyl)azo]naphthol

1-(fenüülaso)-2-naftool ≤ 3
1-(phenylazo)-2-naphtol ≤ 3 %

lisatakse 5 tilka 1-naftool ts.
add 5 drops of 1-naphthol ts.

2-naftool (cas rn 135-19-3)
2-naphthol (cas rn 135-19-3)

lisatakse 5 tilka 1-naftool ts'i.
add 5 drops of 1-naphthol ts.

sudaan 1 (1-fenüülaso-2-naftool)
sudan 1 (1-phenylazo-2-naphthol).

naftoolid ja nende soolad, v.a 1-naftool
naphthols and their salts, other than 1-naphthol

2-naftool: 0,2 g lahustatakse 100 ml 1 m kaaliumhüdroksiidis.
2-naphthol: 0,2 g in 100 ml of 1 m potassium hydroxide.

sudaan 1 (1-fenüül-aso-2-naftool).
sudan 1 (1-phenyl-azo-2-naphthol).

täiendavad võrdluslahused ja -ained β-naftool (β-n)
additional reference solutions and substances

1-[(2-kloro-4-nitrofenüül)aso]-2-naftool
1-[(2-chloro-4-nitrophenyl)azo]-2-naphthol

1-[4-(fenüülaso)fenüülaso]-2-naftool (ci 26100)
1-(4-(phenylazo)phenylazo)-2-naphthol (ci 26100)

1-[(2-kloro-4-nitrofenüül)aso]-2-naftool (ci 12085)
1-[(2-chloro-4-nitrophenyl)azo]-2-naphthol (ci 12085)

erkpunast 4r-i saadakse diasoteeritud naftioonhappe ja 2-naftool-6,8- disulfoonhappe sidestamisega ning saadusest trinaatriumsoola valmistamisega.
ponceau 4r is manufactured by coupling diazotized naphthionic acid to g acid (2-naphthol-6,8- disulphonic acid) and converting the coupling product to the trisodium salt.

1-((4-fenüülaso)fenüülaso)-2-naftool (solvent red 23; ci 26100), kasutamiseks juuksevärvides
1-((4-phenylazo)phenylazo)-2-naphthol (solvent red 23; ci 26100) when used as a substance in hair dye products