118876-58-7

• 常用中文名：二羟基喹酮
• 常用英文名：NBQX
• CAS号：118876-58-7
• 分子式：C₁₂H₈N₄O₆S
• 分子量：336.28000
• 相关类别： 信号通路 跨膜转运 iGluR
• 发布时间：2018-02-22 08:00:00
• 更新时间：2024-01-05 17:15:25
• NBQX是高度选择性,竞争型的AMPA受体拮抗剂。

名称

• 中文名: 二羟基喹酮
• 英文名: 6-Nitro-7-sulfamoylbenzo[f]quinoxaline-2,3-Dione
• 中文别名: 6-硝基-7-硫氨基苯并[F]喹喔啉-2,3二酮; 2,3-二氧代-6-硝基-1,2,3,4-四氢苯并[f]喹噁啉-7-磺酰胺; 1,2,3,4-四氢-6-硝基-2,3-二氧苯并[F]喹喔啉-7-磺钠盐水合物
• 英文别名: 1,2,3,4-Tetrahydro-6-nitro-2,3-dioxo-benzo[f]quinoxaline-7-sulfonamide hydrate FG 9202; NBQX hydrate; 6-nitro-2,3-dioxo-1,4-dihydrobenzo[f]quinoxaline-7-sulfonamide; NBQX disodium salt hydrate; NBQX

物化性质

• 密度: 2.005g/cm3
• 沸点: 613.386ºC at 760 mmHg
• 熔点: 361ºC
• 分子式: C₁₂H₈N₄O₆S
• 分子量: 336.28000
• 闪点: 324.764ºC
• 精确质量: 336.01600
• PSA: 180.08000
• LogP: 2.22950
• 外观性状: 浅黄色至黄色固体
• 蒸汽压: 0mmHg at 25°C
• 折射率: 1.864
• 储存条件:

  密封、在 0-6 ºC下保存

• 稳定性:

  如果遵照规格使用和储存则不会分解，未有已知危险反应

• 计算化学:

  1、 疏水参数计算参考值（XlogP）：0.1

  2、 氢键供体数量：3

  3、 氢键受体数量：7

  4、 可旋转化学键数量：1

  5、 互变异构体数量：4

  6、 拓扑分子极性表面积（TPSA）：162

  7、 重原子数量：23

  8、 表面电荷：0

  9、 复杂度：653

  10、同位素原子数量：0

  11、确定原子立构中心数量：0

  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：黄色固体

  2. 密度（g/mL,20℃）：未确定

  3. 相对蒸汽密度（g/mL,空气=1）：未确定

  4. 熔点（ºC）：361

  5. 沸点（ºC,常压）：未确定

  6. 沸点（ºC,KPa）：未确定

  7. 折射率：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（Pa,20ºC）：未确定

  12. 饱和蒸气压（KPa,20ºC）：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：甲醇：0.25mg/ml

生物活性

• 描述: NBQX是高度选择性,竞争型的AMPA受体拮抗剂。
• 相关类别:
  信号通路 >> 跨膜转运 >> iGluR
  信号通路 >> 神经信号通路 >> iGluR
  研究领域 >> 神经疾病
• 靶点:

  AMPA receptor[1]

• 体外研究: NBQX对AMPA和红藻氨酸结合位点具有高亲和力,对NMDA受体复合物上的谷氨酸识别位点具有很小的亲和力或没有亲和力[1]。
• 体内研究: NBQX在大鼠局灶性缺血模型中具有神经保护作用,当MCA闭塞时静脉推注剂量为30 mg/kg,闭塞后1 h再次给予[1]。 NBQX为AMPA提供有效的抗惊厥保护作用。 NBQX(30分钟,腹腔注射)对AMPA诱导的癫痫发作的保护作用的ED50值为23.6(11.6-48.0)[2]。
• 动物实验: 大鼠[1]体重350-390g的雄性Sprague-Dawley大鼠用于研究。静脉内施用30mg / kg NBQX（2×15mg / mL）作为推注剂量，然后输注10mg / kg / h持续4小时，在MCA闭塞后立即开始推注剂量和输注。在输注开始后1,2,3和4小时从这些动物取血样并测量每个样品中NBQX的血浆水平[1]。小鼠[1] NBQX和GYKI 52466对AMPA诱导的癫痫发作的抗惊厥作用的时间过程通过用30和60 / zmol / kg NBQX或GYKI 52466（ip）预处理瑞士小鼠组（n = 10）来确定。用惊厥剂量的AMPA（5 nmol）icv攻击小鼠前15-120分钟[2]。
• 参考文献:

  [1]. Fukushima K, et al. Characterization of Human Hippocampal Neural Stem/Progenitor Cells and Their Application to Physiologically Relevant Assays for Multiple Ionotropic Glutamate Receptors. J Biomol Screen. 2014 Sep; 19(8):1174-84.

MSDS

Name: NBQX Material Safety Data Sheet Synonym: 2,3-Dihydroxy-6-nitro-7-sulphamoylbenzo(f)-quinoxaline 6-Nitro-7-sulphamoylbenzo(f)-quinoxaline-2,3-dion CAS: 118876-58-7 Section 1 - Chemical Product MSDS Name:NBQX Material Safety Data Sheet Synonym:2,3-Dihydroxy-6-nitro-7-sulphamoylbenzo(f)-quinoxaline 6-Nitro-7-sulphamoylbenzo(f)-quinoxaline-2,3-dion Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS CAS# Chemical Name content EINECS# 118876-58-7 NBQX unlisted Hazard Symbols: None Listed. Risk Phrases: None Listed. Section 3 - HAZARDS IDENTIFICATION EMERGENCY OVERVIEW Not available. 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: Not available. 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. Ingestion: Get medical aid. Wash mouth out with 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. Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or chemical 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. Section 7 - HANDLING and STORAGE Handling: Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Storage: Store in a tightly closed container. Keep refrigerated. (Store below 4C/39F.) Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION Engineering Controls: Use adequate ventilation to keep airborne concentrations low. Exposure Limits CAS# 118876-58-7: Personal Protective Equipment Eyes: Not available. 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: Powder Color: yellow Odor: Not available. pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: Not available. Freezing/Melting Point: Not available. Autoignition Temperature: Not available. Flash Point: Not available. Explosion Limits, lower: Not available. Explosion Limits, upper: Not available. Decomposition Temperature: Solubility in water: Specific Gravity/Density: Molecular Formula: C12H8N4O6S Molecular Weight: 336.1392 Section 10 - STABILITY AND REACTIVITY Chemical Stability: Stable under normal temperatures and pressures. Conditions to Avoid: Incompatible materials. Incompatibilities with Other Materials: Strong oxidizing agents. Hazardous Decomposition Products: Carbon monoxide, oxides of nitrogen, oxides of sulfur, carbon dioxide. Hazardous Polymerization: Will not occur. Section 11 - TOXICOLOGICAL INFORMATION RTECS#: CAS# 118876-58-7 unlisted. LD50/LC50: Not available. Carcinogenicity: NBQX - 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 No information available. IMO No information available. RID/ADR No information available. 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. WGK (Water Danger/Protection) CAS# 118876-58-7: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 118876-58-7 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 118876-58-7 is not listed on the TSCA inventory. It is for research and development use only. SECTION 16 - ADDITIONAL INFORMATION N/A

安全

• 危害码 (欧洲): Xi: Irritant;
• 风险声明 (欧洲): R36/37/38
• 安全声明 (欧洲): S26