Methanesulfonic anhydride
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7143-01-3CS(=O)(=O)OS(C)(=O)=OIZDROVVXIHRYMH-UHFFFAOYSA-N7143-01-3DTXSID70864010安全情報は参考情報です。供給元の安全データシート(SDS)、適用法令、専門家による評価に代わるものではありません。
Danger
H314 (100%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
P260, P264, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 64 reports by companies from 9 notifications to the ECHA C&L Inventory.
Chemical: Methanesulfonic acid, anhydride
Status: Active Update: 30-05-2018 https://echa.europa.eu/registration-dossier/-/registered-dossier/19506
Methanesulphonic anhydride: Does not have an individual approval but may be used under an appropriate group standard
使用Methanesulfonic anhydride is used to prepare methylsulfonyl esters called as mesylates. It finds application in the reaction of aromatic alkylation. It reacts with dimethylsulfoxide to get sulfoxonium complex, which is a useful oxidizing agent.
製造方法Methanesulfonic anhydride may be prepared by the dehydration of methanesulfonic acid with phosphorus pentoxide.P2O5 + 6 CH3SO3H → 3 (CH3SO2)2O + 2 H3PO4Methanesulfonic anhydride can be purified by distillation under vacuum (distillation of a solid) or by recrystallized from Methyl tert-butyl ether/toluene.
読み込み中…
化学的特性white to light brown to grey powder, crystals and/