18751-99-0

• 常用中文名：Beta-Apo-土霉素
• 常用英文名：alpha-apo-oxytetracycline
• CAS号：18751-99-0
• 分子式：C₂₂H₂₂N₂O₈
• 分子量：442.41900
• 相关类别： 原料药 抗生素类药物 四环素类药
• 发布时间：2018-02-10 08:00:00
• 更新时间：2024-01-02 16:16:36
• β-Apooxytetracycline is a potential impurity of oxytetracycline. β-Apooxytetracycline is a degradation product formed from oxytetracycline via acid hydrolysis. β-Apooxytetracycline is toxic to rats, decreasing body weight, disrupting blood cell counts, and inducing hepatocyte necrosis.

名称

• 中文名: Beta-Apo-土霉素
• 英文名: (3S)-4t-[(R)-4,5-dihydroxy-9-methyl-3-oxo-1,3-dihydro-naphtho[2,3-c]furan-1-yl)-3r-dimethylamino-2,5ξ-dihydroxy-6-oxo-cyclohex-1-enecarboxylic acid amide
• 中文别名: β-Apo-oxytetracycline
• 英文别名: MFCD00062827; Beta-Apo-oxytetracycline; SS-APO-OXYTETRACYCLINE; BETA-APO OXYTETRACYCLINE; B-APO-OXYTETRACYCLINE; β-Apo-oxytetracycline; ALPHA-APO-OXYTETRACYCLINE

物化性质

• 密度: 1.62±0.1 g/cm3
• 沸点: 742.4±60.0 °C
• 熔点: 200-204 °C
• 分子式: C₂₂H₂₂N₂O₈
• 分子量: 442.41900
• 精确质量: 442.13800
• PSA: 170.62000
• LogP: 1.25860
• 外观性状: Powder | Yellow-brown to brown
• 储存条件:

  密闭于阴凉干燥环境中

• 稳定性:

  遵照规定使用和储存则不会分解。

• 分子结构:

  1、 摩尔折射率：110.86

  2、 摩尔体积（m³/mol）：271.9

  3、 等张比容（90.2K）：855.1

  4、 表面张力（3.0 dyne/cm）：97.7

  5、 极化率（0.5 10 ^-24cm ³）：43.94

• 更多:

  1. 性状：粉末

  2. 密度（g/mL,25/4℃）：无可用

  3. 相对蒸汽密度（g/mL,空气=1）：无可用

  4. 熔点（ºC）：200-204

  5. 沸点（ºC,常压）：无可用

  6. 沸点（ºC,5.2kPa）：无可用

  7. 折射率：无可用

  8. 闪点（ºC）：无可用

  9. 比旋光度（º）：-207

  10. 自燃点或引燃温度（ºC）：无可用

  11. 蒸气压（kPa,25ºC）：无可用

  12. 饱和蒸气压（kPa,60ºC）：无可用

  13. 燃烧热（KJ/mol）：无可用

  14. 临界温度（ºC）：无可用

  15. 临界压力（KPa）：无可用

  16. 油水（辛醇/水）分配系数的对数值：无可用

  17. 爆炸上限（%,V/V）：无可用

  18. 爆炸下限（%,V/V）：无可用

  19. 溶解性：无可用

MSDS

Name: Beta-Apo-Oxytetracycline "Can be Used as Secondary Standard" Material Safety Data Sheet Synonym: None known CAS: 18751-99-0 Section 1 - Chemical Product MSDS Name:Beta-Apo-Oxytetracycline "Can be Used as Secondary Standard" Material Safety Data Sheet Synonym:None known Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS CAS# Chemical Name content EINECS# 18751-99-0 Beta-Apo-Oxytetracycline ca 100 unlisted Hazard Symbols: XN Risk Phrases: 63 Section 3 - HAZARDS IDENTIFICATION EMERGENCY OVERVIEW Possible risk of harm to the unborn child.Light sensitive.Air sensitive.The toxicological properties of this material have not been fully investigated. Potential Health Effects Eye: May cause eye irritation. Skin: May cause skin irritation. Ingestion: May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated. Inhalation: May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. Chronic: No information found. Section 4 - FIRST AID MEASURES Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid. Skin: Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Ingestion: Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. Inhalation: Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. Notes to Physician: Section 5 - FIRE FIGHTING MEASURES General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing Media: Use agent most appropriate to extinguish fire. Use water spray, dry chemical, carbon dioxide, or appropriate foam. Section 6 - ACCIDENTAL RELEASE MEASURES General Information: Use proper personal protective equipment as indicated in Section 8. Spills/Leaks: Clean up spills immediately, observing precautions in the Protective Equipment section. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation. Place under an inert atmosphere. Section 7 - HANDLING and STORAGE Handling: Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Store protected from light. Handle under an inert atmosphere. Store protected from air. Storage: Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Do not expose to air. Store protected from light. Store under an inert atmosphere. Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION Engineering Controls: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low. Exposure Limits CAS# 18751-99-0: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure. Respirators: A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use. Section 9 - PHYSICAL AND CHEMICAL PROPERTIES Physical State: Solid Color: almost white Odor: None reported. pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: Not available. Freezing/Melting Point: 200 deg C Autoignition Temperature: Not applicable. Flash Point: Not applicable. Explosion Limits, lower: Not available. Explosion Limits, upper: Not available. Decomposition Temperature: > 200 deg C Solubility in water: in water: 0.3 mg/ml Specific Gravity/Density: Molecular Formula: C22H22N2O8 Molecular Weight: 442.39 Section 10 - STABILITY AND REACTIVITY Chemical Stability: Stable under normal temperatures and pressures. Conditions to Avoid: Incompatible materials, light, dust generation, exposure to air, excess heat, strong oxidants. Incompatibilities with Other Materials: Air, strong oxidizing agents. Hazardous Decomposition Products: Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen. Hazardous Polymerization: Has not been reported. Section 11 - TOXICOLOGICAL INFORMATION RTECS#: CAS# 18751-99-0 unlisted. LD50/LC50: Not available. Carcinogenicity: Beta-Apo-Oxytetracycline - Not listed by ACGIH, IARC, or NTP. Section 12 - ECOLOGICAL INFORMATION Section 13 - DISPOSAL CONSIDERATIONS Dispose of in a manner consistent with federal, state, and local regulations. Section 14 - TRANSPORT INFORMATION IATA Not regulated as a hazardous material. IMO Not regulated as a hazardous material. RID/ADR Not regulated as a hazardous material. Section 15 - REGULATORY INFORMATION European/International Regulations European Labeling in Accordance with EC Directives Hazard Symbols: XN Risk Phrases: R 63 Possible risk of harm to the unborn child. Safety Phrases: S 28A After contact with skin, wash immediately with plenty of water. S 36/37 Wear suitable protective clothing and gloves. S 37 Wear suitable gloves. S 45 In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). WGK (Water Danger/Protection) CAS# 18751-99-0: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 18751-99-0 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 18751-99-0 is not listed on the TSCA inventory. It is for research and development use only. SECTION 16 - ADDITIONAL INFORMATION N/A

毒性和生态

生态学数据: 通常对水是不危害的，若无政府许可，勿将材料排入周围环境。

安全

• 危害码 (欧洲): Xn
• 风险声明 (欧洲): R63
• 安全声明 (欧洲): S28;S37;S45;S36/S37