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規格	5mg 10mg
CAS	77074-49-8
別名	N/A
化學名	N/A
分子式	C15H11I4NO7S
分子量	856.93
溶解度	DMSO : ≥ 31 mg/mL (36.18 mM)
儲存條件	Store at 4°C
General tips	For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.
Shipping Condition	Evaluation sample solution : ship with blue ice All other available size: ship with RT , or blue ice upon request

產品描述：

Thyroxine sulfate is a thyroid hormone metabolite.

Thyroxine sulfate (T4S) is a normal component of human serum and amniotic fluid, and it is mostly derived from thyroxine peripherally and accumulates when type I 5-monodeiodinating activity is low in fetuses or inhibited by drugs, such as ipodate[1].

Significant amounts of thyroxine sulfate (T4S) in fetal sheep serum, meconium, bile, and amniotic and allantoic fluids are observed. T4S concentration in amniotic fluid from women at 18-19 weeks of gestation (25.5 ng/dL) is higher than that at 14-15 weeks of gestation (14.3 ng/dL). A significant rise in serum T4S is detected in hyperthyroid patients 1 day after ingestion of 1 g of ipodate[1]. Thyroxine undergoes significant sulfation in rats, and biliary excretion of T4S is enhanced if its type I deiodination is inhibited[2]. Serum T4S levels are clearly elevated compared with healthy references, and the decreased deiodination by liver D1 during critical illness appears to play a role in this increase in serum T4S levels[3].

[1]. Wu SY, et al. Identification of thyroxine-sulfate (T4S) in human serum and amniotic fluid by a novel T4S radioimmunoassay. Thyroid. 1992 Summer;2(2):101-5. [2]. Rutgers M, et al. Effects of propylthiouracil on the biliary clearance of thyroxine (T4) in rats: decreased excretion of 3,5,3'-triiodothyronine glucuronide and increased excretion of 3,3',5'-triiodothyronine glucuronide and T4 sulfate. Endocrinology. 1989 Oct;125(4):2175-86. [3]. Peeters RP, et al. Increased thyroxine sulfate levels in critically ill patients as a result of a decreased hepatic type Ideiodinase activity. J Clin Endocrinol Metab. 2005 Dec;90(12):6460-5..
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原創作者：上海莼試生物技術有限公司

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Thyroxine sulfate (T4 Sulfate)

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