12羟基4氨基苯酚检测标准

2-Amino-4-nitrophenol

Determination of 2,4-diaminophenol,2,3-diaminophenol and 2,4-diaminoanisole in hair dyes for import and export

Determination of 2-amino-4-nitrophenol and 2-amino-5-nitrophenol in hair dye for import and export

4-Aminophenol technical. Specifications

Water quality－Determination of phenol index(4－aminoantipyrine spectrometric methods after distillation)

Water quality. Physical, chemical and biochemical methods-Determination of phenol index: 4-aminoantipyrine (4-aminophenazone) spectrometric methods after distillation

Water quality — Determination of phenol index — 4-Aminoantipyrine spectrometric methods after distillation

Cosmetic raw materials. Sunscreens. Benzoic acid, 2-[4-(diethylamino)-2-hydroxybenzoyl]-hexylester.

Water quality — Determination of phenol index — 4-Aminoantipyrine spectrometric methods after distillation

Coking phenol

p-Aminophenol

Cosmetic raw materials. Sunscreens. Benzoic acid, 2-{4-(diethylamino)-2-hidroxybenzoyl}-hexylester. Determination of the purity by gas chromatography.

Synthetic phenol for industrial use

Cosmetic raw materials. Sunscreens. (1,3,5)-triazine-2,4-bis{(4-(2-ethyl-hexyloxy)-2-hydroxy)-phenyl}-6-(4-methoxyphenyl) and 2,2-methylene-bis-6-(2H-benzotriazol-2-yl)-4-(tetramethyl-butyl)-1,1,3,3-phenol. Determination by liquid chromatography.

0-phenyphenol for industrial use

Crude phenol

4-Methylphenol

Crude methylphenol