Dimedone
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126-81-8CC1(C)CC(=O)CC(=O)C1BADXJIPKFRBFOT-UHFFFAOYSA-N126-81-8DTXSID80219871101
1176
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。
This chemical does not meet GHS hazard criteria for 70% (7 of 10) of all reports.
Warning
H315 (30%): Causes skin irritation [Warning Skin corrosion/irritation];H319 (30%): Causes serious eye irritation [Warning Serious eye damage/eye irritation];H335 (30%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 10 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.;Reported as not meeting GHS hazard criteria per 7 of 10 reports by companies.;There are 3 notifications provided by 3 of 10 reports by companies with hazard statement code(s).;Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
Chemical: 1,3-Cyclohexanedione, 5,5-dimethyl-
Status: Active Update: 21-11-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/5719
1,3-Cyclohexanedione, 5,5-dimethyl-: Does not have an individual approval but may be used under an appropriate group standard
解説ジメドン,5,5-dimethyl-1,3-cyclohexanedione.C8H12O2(140.18).メシチルオキシドとマロン酸ジエチルとから合成される.針状晶もしくはプリズム晶のβ-ジケトンで,遮光して保存する.水溶液中では,おもにエノール形で存在する.水に溶けて弱酸性を示す。アルコール,クロロホルム,ベンゼンなどに可溶。アルデヒドとは付加化合物をつくって水溶液から沈殿する。融点148~150 ℃.K 0.71×10-5(25 ℃).アルデヒドの検出や同定に用いられる.アルデヒド一分子に対し二分子のジメドンが反応し,不溶性の縮合体を与えるが,ケトンや糖類とは縮合しない.
用途ジメドン (Dimedone) は環状ジケトンに分類される有機化合物の一つである。有機化学において、化合物がアルデヒド基を含むかどうか決定するために用いられる。その他の用途には、比色分析、結晶、発光、分光分析等がある。また、低電気抵抗の有機化合物にも用いられる。また、一般にシクロヘキサンジオンは、遷移金属錯体形成の触媒として用いることができる。
使用Reagent used in synthesis of fused 3-methylfuransDimedone is used in organic chemistry to identify the presence of aldehyde group. It is also used as a catalyst in the formation of transition-metal complexes. Further, it is also employed in colorimetry, crystallography, luminescence and spectrophotometric analysis. In addition to this, it is used in the synthesis of naturally occurring fused 3-methylfurans.
一般的な説明5,5-dimethyl-1,3-cyclohexanedione (Dimedone) is basically a highly sensitive and very specific reagent used for the determination of aldehydes. It is highly advantageous as it is environment friendly, give high yields and is a simple workup procedure.
純化方法Crystallise dimedone from acetone (ca 8mL/g), water or aqueous EtOH. Dry it in air. [Schneider & Todd Org Synth Coll Vol II 200 1943, Beilstein 7 H 559, 7 IV 1999.]
読み込み中…
化学的特性solid
Chemical: 1,3-Cyclohexanedione, 5,5-dimethyl-
Status: Active Update: 21-11-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/5719
1,3-Cyclohexanedione, 5,5-dimethyl-: Does not have an individual approval but may be used under an appropriate group standard