Wellington Dioxin PCDDs & PCDFs Analytical Standards	Welington Dioxin PCDDs & PCDFs Single Standard	Wellington Perfluorocarbon Standards (PFCs)
Water soluble GPC molecular weight standards	Wako metal catalyst & selective reduction catalyst

Isotope markers have been widely used in the fields of medicine, life sciences, energy metabolism, agricultural research, environmental science, analytical testing, lasers, nuclear power, and semiconductor chips.

No.	Content	Product Name	CAS No.
1	Wellington 13C 同位素标记和未标记多氯二苯并二恶英（PCDD）单标标准液	1,3,6,8-Tetrachloro[13C12]dibenzo-p-dioxin	33423-92-6
		2,3,7,8-Tetrachloro[13C12]dibenzo-p-dioxin	/
		1-Chlorodibenzo-p-dioxin	39227-53-7
		2-Chlorodibenzo-p-dioxin	39227-54-8
		Dibenzo-p-dioxin	/
		1,2,3,4,6,7-Hexachlorodibenzo-p-dioxin	58200-66-1
		1,2,3,4,7,8-Hexachlorodibenzo-p-dioxin	39227-28-6
		1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin	35822-46-9
		Octachlorodibenzo-p-dioxin	3268-87-9
		[13C12]Dibenzo-p-dioxin	/
2	Wellington 13C 同位素标记和未标记多氯二苯并呋喃（PCDFs）单标标准液	1,2,3,4-Tetrachloro[13C12]dibenzofuran	24478-72-6
		Dibenzofuran	/
		2-Chlorodibenzofuran	51230-49-0
		4-Chlorodibenzofuran	74992-96-4
		2,3-Dichlorodibenzofuran	64126-86-9
		2,4-Dichlorodibenzofuran	/
		1,2,4,7,8-Pentachlorodibenzofuran	58802-15-6
		2,3,4,7,8-Pentachlorodibenzofuran	57117-31-4
		Octachlorodibenzofuran	39001-02-0
		[13C12]Dibenzofuran	/