Triclosan (CAS No.: 3380-34-5) Assay: 97.0% ~ 103.0% Monochlorophenols;50ppm max Appearance :White crystalline powder

Items	Acceptance criteria			Results
Appearance	White crystalline power			White crystalline power
Identification	A.IR spectrum consistent with that obtained with			Consistent
	Triclosan RS
	B.The retention time of the major peak in the			Conforms
	chromatogram of the Assay preparation
	corresponds to that in the chromatogram of the
	Standard preparation, as obtained in the Assay
Water	≤0.1%			0.07%
Residue on ignition	≤0.1%			0.035%
Heavy metals	≤0.002%			<0.002%
Melting Point	56-58°C			56.3-57.5°C
Related substances	Any individual impurity:≤0.1%			0.05%
	Total impurities:        ≤0.5%			0.16%
Assay	97.0-103.0%(on anhydrous basis)			99.84%
Monochlorophenols	≤50ppm			8ppm
2,4-Dichlorophenol	≤10ppm			3ppm
1,3,7-Trichlorodibenzo-p-Dioxin	≤0.25ppm			0.08ppm
2,8-Dichlorodibenzo-p-Dioxin	≤0.5ppm			0.20ppm
2,8- Dichlorodibenzofuran	≤0.25ppm			0.06ppm
2,4,8-Trichlorodibenzofuran	≤0.5ppm			0.24ppm
2,3,7,8-Tetrachloro dibenzo-p-Dioxin	≤1ppt			<1ppm
2,3,7,8-Tetrachloro dibenzofuran	≤1ppt			<1ppm

Triclosan