プロパティ

安全情報

絵表示(GHS):
注意喚起語:	Danger
危険有害性情報:	コード 危険有害性情報 危険有害性クラス 區(qū)分 注意喚起語 シンボル P コード H373 長期にわたる、または反復暴露により臓器の障 害のおそれ 特定標的臓器有害性、単回暴露 2 警告 P260, P314, P501 H410 長期的影響により水生生物に非常に強い毒性 水生環(huán)境有害性、慢性毒性 1 警告 P273, P391, P501
注意書き:	P260 粉じん/煙/ガス/ミスト/蒸気/スプレーを吸入しないこ と。 P264 取扱い後は皮膚をよく洗うこと。 P264 取扱い後は手や顔をよく洗うこと。 P273 環(huán)境への放出を避けること。 P301+P310 飲み込んだ場合：直ちに醫(yī)師に連絡すること。 P314 気分が悪い時は、醫(yī)師の診斷/手當てを受けること。

説明

Selenomethionine is the major form of selenium in plant foods. Selenomethionine is identical to methionine, except that selenium replaces the sulfur atom. The selenium consumed as selenocysteine is broken down to form alanine and hydrogen selenide (H2Se). The breakdown pathway of selenomethion- ine is not clear. Although selenium does not occur to a great extent as selenite in foods, selenite is readily used as a source of the element by humans and animals. Selenium also occurs as selenate in foods such as beet leaves, garlic, and cabbage.

DL-Selenomethionine is a selenium (Se) analogue of methionine in which sulfur is replaced with the trace element selenium. Selenomethionine (SeMet) can incorporate into proteins in place of methionine with no effects on protein structure and function, providing a mechanism for reversible Se storage in organs and tissues. Free selenium is incorporated into selenocysteine, an amino acid found in more than thirty selenoproteins including the glutathione peroxidases (GPx) enzymes, thioredoxin reductase (TR) and the iodothyronine deiodinase enzymes.