1114-41-6

• 常用中文名：胞壁酸
• 常用英文名：Muramic acid
• CAS号：1114-41-6
• 分子式：C₉H₁₇NO₇
• 分子量：251.23400
• 相关类别： 生物化工 糖类化合物 单糖
• 发布时间：2018-09-12 17:15:35
• 更新时间：2024-01-02 20:26:31
• Muramic acid 是许多革兰氏阳性细菌细胞壁中的一种成分,可作为革兰氏阳性细菌的标记物。

名称

• 中文名: 胞壁酸
• 英文名: aldehydo-muramic acid
• 中文别名: 2-氨基-3-O-(1-羧乙基)-2-脱氧-D-葡萄糖
• 英文别名: EINECS 214-214-9; Muramic acid; 2-Amino-3-O-(1-carboxyethyl)-2-deoxy-D-glucose; MFCD00213428

物化性质

• 密度: 1.51 g/cm3
• 沸点: 572.4ºC at 760 mmHg
• 熔点: 140-150 °C (dec.)
• 分子式: C₉H₁₇NO₇
• 分子量: 251.23400
• 闪点: 300ºC
• 精确质量: 251.10100
• PSA: 142.47000
• 外观性状: 白色固体
• 蒸汽压: 1.75E-15mmHg at 25°C
• 折射率: 1.575
• 储存条件:

  密封储存，储存于阴凉、干燥的库房。

• 稳定性:

  常温常压下稳定，避免与酸，氧化剂，还原剂，碱金属，氨，过氧化物接触。

• 分子结构:

  1、摩尔折射率：54.9

  2、摩尔体积（cm³/mol）：166

  3、等张比容（90.2K）：492.3

  4、表面张力（dyne/cm）：77.2

  5、介电常数：无可用的

  6、极化率（10^-24cm³）：21.76

  7、单一同位素质量：251.100502 Da

  8、标称质量：251 Da

  9、平均质量：251.2338 Da

• 计算化学:

  1、 疏水参数计算参考值（XlogP）：-4.6

  2、 氢键供体数量：5

  3、 氢键受体数量：8

  4、 可旋转化学键数量：4

  5、 互变异构体数量：

  6、 拓扑分子极性表面积（TPSA）：143

  7、 重原子数量：17

  8、 表面电荷：0

  9、 复杂度：274

  10、同位素原子数量：0

  11、确定原子立构中心数量：5

  12、不确定原子立构中心数量：0

  13、确定化学键立构中心数量：0

  14、不确定化学键立构中心数量：0

  15、共价键单元数量：1

• 更多:

  1. 性状：固体

  2. 密度（g/mL,25℃）：未确定

  3. 相对蒸汽密度（g/mL,空气=1）：未确定

  4. 熔点（ºC）：140-150

  5. 沸点（ºC,常压）：未确定

  6. 沸点（ºC,52mmHg）：未确定

  7. 折射率(n20/D)：未确定

  8. 闪点（ºC）：未确定

  9. 比旋光度（º）：未确定

  10. 自燃点或引燃温度（ºC）：未确定

  11. 蒸气压（kPa,55ºC）：未确定

  12. 饱和蒸气压（kPa,25ºC）：未确定

  13. 燃烧热（KJ/mol）：未确定

  14. 临界温度（ºC）：未确定

  15. 临界压力（KPa）：未确定

  16. 油水（辛醇/水）分配系数的对数值：未确定

  17. 爆炸上限（%,V/V）：未确定

  18. 爆炸下限（%,V/V）：未确定

  19. 溶解性：未确定

生物活性

• 描述: Muramic acid 是许多革兰氏阳性细菌细胞壁中的一种成分,可作为革兰氏阳性细菌的标记物。
• 相关类别:
  研究领域 >> 其他
  信号通路 >> 其他 >> 其他
• 参考文献:

  [1]. Lappalainen MHJ, et, al. High indoor microbial levels are associated with reduced Th1 cytokine secretion capacity in infancy. Int Arch Allergy Immunol. 2012; 159(2): 194-203.

MSDS

Name: Muramic Acid Hydrate Material Safety Data Sheet Synonym: Non CAS: 1114-41-6 Section 1 - Chemical Product MSDS Name:Muramic Acid Hydrate Material Safety Data Sheet Synonym:Non Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS CAS# Chemical Name content EINECS# 1114-41-6 Muramic Acid, Hydrate 100.0 214-214-9 Hazard Symbols: None Listed. Risk Phrases: None Listed. Section 3 - HAZARDS IDENTIFICATION EMERGENCY OVERVIEW The toxicological properties of this material have not been fully investigated. Potential Health Effects Eye: May cause eye irritation. The toxicological properties of this material have not been fully investigated. Skin: May cause skin irritation. The toxicological properties of this material have not been fully investigated. 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: Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions. Provide ventilation. Section 7 - HANDLING and STORAGE Handling: Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use only in a chemical fume hood. Storage: Store in a tightly closed container. Keep under an argon blanket. Store in a cool, dry, well-ventilated area away from incompatible substances. Deep freeze (below -20C). 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# 1114-41-6: 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: Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced. Section 9 - PHYSICAL AND CHEMICAL PROPERTIES Physical State: Solid Color: Not available. Odor: Not available. pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: Decomposes Freezing/Melting Point: 148 deg C dec Autoignition Temperature: Not available. Flash Point: Not available. Explosion Limits, lower: Not available. Explosion Limits, upper: Not available. Decomposition Temperature: > 148 deg C Solubility in water: Specific Gravity/Density: Molecular Formula: C9H17NO7.xH2O Molecular Weight: 251.24 Section 10 - STABILITY AND REACTIVITY Chemical Stability: Stable under normal temperatures and pressures. Conditions to Avoid: Incompatible materials, dust generation, excess heat, exposure to moist air or water. Incompatibilities with Other Materials: Oxidizing agents. Hazardous Decomposition Products: Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide. Hazardous Polymerization: Has not been reported. Section 11 - TOXICOLOGICAL INFORMATION RTECS#: CAS# 1114-41-6 unlisted. LD50/LC50: Not available. Carcinogenicity: Muramic Acid, Hydrate - 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: Not available. Risk Phrases: Safety Phrases: S 24/25 Avoid contact with skin and eyes. S 28A After contact with skin, wash immediately with plenty of water. 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# 1114-41-6: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 1114-41-6 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 1114-41-6 is not listed on the TSCA inventory. It is for research and development use only. SECTION 16 - ADDITIONAL INFORMATION N/A

安全

• 个人防护装备: Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
• 安全声明 (欧洲): S22-S24/25
• 危险品运输编码: NONH for all modes of transport
• WGK德国: 1