106-57-0O=C1CNC(=O)CN1BXRNXXXXHLBUKK-UHFFFAOYSA-N106-57-0DTXSID8059342CHEMBL125229CHEBI:16535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 33.3% (1 of 3) of reports.
Warning
H315 (66.7%): Causes skin irritation [Warning Skin corrosion/irritation];H319 (66.7%): Causes serious eye irritation [Warning Serious eye damage/eye irritation];H335 (66.7%): 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 3 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.;Reported as not meeting GHS hazard criteria per 1 of 3 reports by companies.;There are 2 notifications provided by 2 of 3 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.
解説ジケトピペラジン,カルボニル基の位置により,2,3-,2,5-,2,6-ジケトピペラジンの3種類の異性体があるが,2,5-ジケトピペラジンがもっとも重要である.2,5-ジケトピペラジンは,グリシン2分子の無水物に相当し,水より再結晶すると板状結晶,昇華により針状結晶となる.森北出版「化学辞典(第2版)
使用2,5-Piperazinedione, can be used as an intermediate in the preparation of various pharmaceutical and biologically active compounds. It can be used in the synthesis of dipeptide isosteres by cross-metathesis.
純化方法Recrystallise glycine anhydride from H2O (plates) and it can be sublimed (slowly) at 260o or at 140-170o/0.5mm. The dihydrochloride has m 129-130o and is prepared by dissolving it in conc HCl and adding EtOH to crystallisation point; dry it in a vacuum. The bis-1-naphthylurethane has m 232o(dec), and the diperchlorate has m 117o (hygroscopic). [MS: Johnstone J Chem Soc, Perkin Trans 1 1297 1975, NMR: Blaha & Samek Collect Czech Chem Commun 32 3780 1967, Sauborn J Phys Chem 36 179 1932, Corey J Am Chem Soc 60 1599 1938, Beilstein 24 IV 1070.]
読み込み中…
化学的特性white to slightly yellow crystalline powder
定義ChEBI: A cyclic peptide that is piperazine in which the hydrogens at positions 2 and 5 are replaced by oxo groups.