ノボビオシンナトリウム

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Warning

• 危険有害性情報

  H302：飲み込むと有害

  H317：アレルギー性皮膚反応を起こすおそれ

  H319：強い眼刺激

• 注意書き

  P261：粉じん/煙/ガス/ミスト/蒸気/スプレーの吸入を避ける 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。

  P280：保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。

  P301+P312：飲み込んだ場合：気分が悪い時は医師に連絡する こと。

  P302+P352：皮膚に付着した場合：多量の水と石鹸で洗うこと。

  P305+P351+P338：眼に入った場合：水で数分間注意深く洗うこと。次にコ ンタクトレンズを着用していて容易に外せる場合は外す こと。その後も洗浄を続けること。

ノボビオシンナトリウム 価格

ノボビオシンナトリウム 化学特性,用途語,生産方法

• 外観

  白色〜うすい黄褐色, 結晶性粉末〜粉末

• 溶解性

  水(二酸化炭素を除いた水)に溶ける

• 効能

  抗生物質

• 化学的特性

  crystalline

• 使用

  Novobiocin is an antibiotic that acts as an inhibitor of bacterial DNA gyrase and eukaryotic DNA topoisomerase. Studies show that Novobiocin is also an inhibitor of retrovirus RNA-dependent DNA-polymerase. Novobiocin is used in the production of positively supercoiled plasmid DNA.
  Novobiocin sodium salt is twice as bioavailable as the calcium salt and 50 times more available than the parent acid.

• 臨床応用

  The action of novobiocin is largely bacteriostatic. Itsmode of action is not known with certainty, though it doesinhibit bacterial protein and nucleic acid synthesis. Studiesindicate that novobiocin and related coumarin-containingantibiotics bind to the subunit of DNA gyrase and possiblyinterfere with DNA supercoiling and energy transductionin bacteria. The effectiveness of novobiocin is confinedlargely to Gram-positive bacteria and a few strains of P. vulgaris.Its low activity against Gram-negative bacteria is apparentlybecause of poor cellular penetration.
  Although cross-resistance to other antibiotics is reportednot to develop with novobiocin, resistant S. aureus strainsare known. Consequently, the medical use of novobiocin isreserved for the treatment of staphylococcal infections resistantto other antibiotics and sulfas and for patients allergicto these drugs. Another shortcoming that limits the usefulnessof novobiocin is the relatively high frequency ofadverse reactions, such as urticaria, allergic rashes, hepatotoxicity,and blood dyscrasias.

• 安全性プロファイル

  Poison by intraperitoneal and subcutaneous routes. Moderately toxic by ingestion. Mutation data reported. An antibiotic with serious side effects which include liver and blood disease. It may also promote the development of resistant strains of staphylococcus. When heated to decomposition it emits toxic fumes of NOx and Na2O.

• 純化方法

  The sodium salt has been recrystallised from MeOH, then dried at 60o/0.5mm. [Sensi et al, Anal Chem 29 1611 1957, Kaczka et al. J Am Chem Soc 78 4126 1956, Beilstein 18/8 IV 8125.]

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