C3787

琥珀氯霉素 钠盐

≥80% (HPLC)

• 别名: Chloramphenicol α-succinate
• 线性分子式: C₁₅H₁₅Cl₂N₂O₈Na
• CAS号: 982-57-0
• 分子量: 445.18
• EC號碼: 213-568-1
• MDL號碼: MFCD00079025
• 分類程式碼代碼: 41116107
• PubChem物質ID: 24892643
• NACRES: NA.85

属性

• 品質等級: 100
• 化驗: ≥80% (HPLC)
• 形狀: solid
• 溶解度: H₂O: 50 mg/mL
• 抗生素活性譜: Gram-negative bacteria; Gram-positive bacteria
• 作用方式: protein synthesis | interferes
• SMILES 字串: [Na].O[C@@H]([C@@H](COC(=O)CCC(O)=O)NC(=O)C(Cl)Cl)c1ccc(cc1)N(=O)=O
• InChI: 1S/C15H16Cl2N2O8.Na.H/c16-14(17)15(24)18-10(7-27-12(22)6-5-11(20)21)13(23)8-1-3-9(4-2-8)19(25)26;;/h1-4,10,13-14,23H,5-7H2,(H,18,24)(H,20,21);;/t10-,13-;;/m1../s1
• InChI 密鑰: RJOAHMNSYANTPN-OWVUFADGSA-N

说明

一般說明

Chemical structure: phenicole

應用

Chloramphenicol is often used for bacterial selection in molecular biology applications at 10-20 μg/mL and as a selection agent for transformed cells containing chloramphenicol reistance genes.

生化／生理作用

Chloramphenicol is a synthetic antibiotic, isolated from strains of Streptomyces venezuelae. It inhibits bacterial protein synthesis by blocking the peptidyl transferase step by binding to the 50S ribosomal subunit and preventing attachment of aminoacyl tRNA to the ribosome. It also inhibits mitochondrial and chloroplast protein synthesis and ribosomal formation of (p)ppGpp, de-pressing rRNA transcription.

Mode of Resistance: Use of chloramphenicol acetyltransferase will acetylate the product and inactivate it.

Antimicrobial Spectrum: This is a broad spectrum antibiotic against gram-positive and gram-negative bacteria, and is used mainly for ophthalmic and veterinary purposes.

注意

Stock solutions should be stored at 2-8°C and are stable at 37°C for 5 days. Aqueous solutions are neutral and stable over a wide pH range, with 50% hydrolysis occurring after 290 days. Use of a borax buffered solution reduces this number to 14%. Solutions should be protected from light as photochemical decomposition results in a yellowing of the solution. Heating aqueous solutions at 115°C for 30 minutes results in a 10% loss of chloramphenicol.

準備報告

Stock solutions can be prepared directly in the vial at any recommended concentration. A solution at 50 mg/mL in ethanol yields a clear, very faint, yellow solution. Degradation of chloramphenicol in aqueous solution is catalyzed by general acids and bases. This rate of degradation is independent of the ionic strength and pH.

其他說明

Keep container tightly closed in a dry and well-ventilated place.

安全信息

• 象形圖: GHS08,GHS07
• 訊號詞: Warning
• 危險聲明: H302,H351
• 防範說明: P202 - P264 - P280 - P301 + P312 - P308 + P313 - P405
• 危險分類: Acute Tox. 4 Oral - Carc. 2
• 儲存類別代碼: 11 - Combustible Solids
• 水污染物質分類（WGK）: WGK 3
• 個人防護裝備: Eyeshields, Gloves, type P3 (EN 143) respirator cartridges