5-乙基-3-(4-硝基苯基)-1,2,4-噁二唑 | 10185-65-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 中文名称: 5-乙基-3-(4-硝基苯基)-1,2,4-噁二唑
• 中文别名: 5-乙基-3-(4-硝基苯基)-1,2,4-恶二唑
• 英文名称: 3-(4-nitrophenyl)-5-ethyl-1,2,4-oxadiazole
• 英文别名: 5-ethyl-3-(4-nitrophenyl)-1,2,4-oxadiazole；3-p-Nitrophenyl-5-ethyl-1,2,4-oxadiazol
• CAS: 10185-65-6
• 化学式: C₁₀H₉N₃O₃
• mdl: MFCD09972166
• 分子量: 219.2
• InChiKey: RLXJOMUXHZMTCH-UHFFFAOYSA-N

物化性质

• 熔点：
  106-107 °C
• 沸点：
  384.3±44.0 °C(Predicted)
• 密度：
  1.299±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  16
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  84.7
• 氢给体数：
  0
• 氢受体数：
  5

安全信息

• 海关编码：
  2934999090

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 5-Ethyl-3-(4-nitrophenyl)-1,2,4-oxadiazole
Synonyms:

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Section 2. Hazards identification
Harmful by inhalation, in contact with skin, and if swallowed.

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Section 3. Composition/information on ingredients.
Ingredient name: 5-Ethyl-3-(4-nitrophenyl)-1,2,4-oxadiazole
CAS number: 10185-65-6

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Section 4. First aid measures
Skin contact: Immediately wash skin with copious amounts of water for at least 15 minutes while removing
contaminated clothing and shoes. If irritation persists, seek medical attention.
Eye contact: Immediately wash skin with copious amounts of water for at least 15 minutes. Assure adequate
flushing of the eyes by separating the eyelids with fingers. If irritation persists, seek medical
attention.
Inhalation: Remove to fresh air. In severe cases or if symptoms persist, seek medical attention.
Ingestion: Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention.

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Section 5. Fire fighting measures
In the event of a fire involving this material, alone or in combination with other materials, use dry
powder or carbon dioxide extinguishers. Protective clothing and self-contained breathing apparatus
should be worn.

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Section 6. Accidental release measures
Personal precautions: Wear suitable personal protective equipment which performs satisfactorily and meets local/state/national
standards.
Respiratory precaution: Wear approved mask/respirator
Hand precaution: Wear suitable gloves/gauntlets
Skin protection: Wear suitable protective clothing
Eye protection: Wear suitable eye protection
Methods for cleaning up: Mix with sand or similar inert absorbent material, sweep up and keep in a tightly closed container
for disposal. See section 12.
Environmental precautions: Do not allow material to enter drains or water courses.

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Section 7. Handling and storage
Handling: This product should be handled only by, or under the close supervision of, those properly qualified
in the handling and use of potentially hazardous chemicals, who should take into account the fire,
health and chemical hazard data given on this sheet.
Store in closed vessels.
Storage:

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Section 8. Exposure Controls / Personal protection
Engineering Controls: Use only in a chemical fume hood.
Personal protective equipment: Wear laboratory clothing, chemical-resistant gloves and safety goggles.
General hydiene measures: Wash thoroughly after handling. Wash contaminated clothing before reuse.

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Section 9. Physical and chemical properties
Appearance: Not specified
Boiling point: No data
No data
Melting point:
Flash point: No data
Density: No data
Molecular formula: C10H9N3O3
Molecular weight: 219.2

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Section 10. Stability and reactivity
Conditions to avoid: Heat, flames and sparks.
Materials to avoid: Oxidizing agents.
Possible hazardous combustion products: Carbon monoxide, nitrogen oxides.

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Section 11. Toxicological information
No data.

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Section 12. Ecological information
No data.

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Section 13. Disposal consideration
Arrange disposal as special waste, by licensed disposal company, in consultation with local waste
disposal authority, in accordance with national and regional regulations.

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Section 14. Transportation information
Non-harzardous for air and ground transportation.

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Section 15. Regulatory information
No chemicals in this material are subject to the reporting requirements of SARA Title III, Section
302, or have known CAS numbers that exceed the threshold reporting levels established by SARA
Title III, Section 313.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  5-乙基-3-(4-硝基苯基)-1,2,4-噁二唑 在 sodium sulfide 作用下， 以 1,4-二氧六环 、 水 为溶剂， 反应 0.75h， 以70%的产率得到3-(4-氨基苯基)-5-乙基-1,2,4-噁二唑
  参考文献：
  名称：

  Synthesis and methemoglobinemia-inducing properties of benzocaine isosteres designed as humane rodenticides

  摘要：

  A number of isosteres (oxadiazoles, thiadiazoles, tetrazoles and diazines) of benzocaine were prepared and evaluated for their capacity to induce methemoglobinemia-with a view to their possible application as humane pest control agents. It was found that an optimal lipophilicity for the formation of methemoglobin (metHb) in vitro existed within each series, with 1,2,4-oxadiazole 3 (metHb% = 61.0 +/- 3.6) and 1,3,4-oxadiazole 10 (metHb% = 52.4 +/- 0.9) demonstrating the greatest activity. Of the 5 candidates (compounds 3, 10, 11, 13 and 23) evaluated in vivo, failure to induce a lethal end-point at doses of 120 mg/kg was observed in all cases. Inadequate metabolic stability, particularly towards hepatic enzymes such as the CYPs, was postulated as one reason for their failure. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2014.02.013
• 作为产物：
  描述：

  对硝基苯甲醛 在 吡啶 、 盐酸羟胺 、 sodium hydroxide 作用下， 以 乙醇 、 水 、 二甲基亚砜 为溶剂， 反应 39.5h， 生成 5-乙基-3-(4-硝基苯基)-1,2,4-噁二唑
  参考文献：
  名称：

  Synthesis and methemoglobinemia-inducing properties of benzocaine isosteres designed as humane rodenticides

  摘要：

  A number of isosteres (oxadiazoles, thiadiazoles, tetrazoles and diazines) of benzocaine were prepared and evaluated for their capacity to induce methemoglobinemia-with a view to their possible application as humane pest control agents. It was found that an optimal lipophilicity for the formation of methemoglobin (metHb) in vitro existed within each series, with 1,2,4-oxadiazole 3 (metHb% = 61.0 +/- 3.6) and 1,3,4-oxadiazole 10 (metHb% = 52.4 +/- 0.9) demonstrating the greatest activity. Of the 5 candidates (compounds 3, 10, 11, 13 and 23) evaluated in vivo, failure to induce a lethal end-point at doses of 120 mg/kg was observed in all cases. Inadequate metabolic stability, particularly towards hepatic enzymes such as the CYPs, was postulated as one reason for their failure. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2014.02.013

文献信息

• Chroman compounds
  申请人：Bernstein Peter

  公开号：US20070135442A1

  公开（公告）日：2007-06-14

  Compounds according to Formula (I) below: wherein R 1 , R 2 , R 3 , and R 4 are as defined in the specification, pharmaceutically-acceptable salts, methods of making, pharmaceutical compositions containing and methods for using the same.

  根据下面的公式（I）合成化合物： 其中R1、R2、R3和R4如规范中定义，药学上可接受的盐，制备方法，含有该化合物的制药组合物以及使用该化合物的方法。
• Giurg; Mlochowski, Polish Journal of Chemistry, 1997, vol. 71, # 8, p. 1093 - 1101
  作者：Giurg、Mlochowski

  DOI：——

  日期：——
• [EN] CHROMAN COMPOUNDS AS 5 -HTlB ANTAGONISTS<br/>[FR] COMPOSES CHROMANE UTILISES EN TANT QU'ANTAGONISTES DES 5-HT1B
  申请人：ASTRAZENECA AB

  公开号：WO2007053094A1

  公开（公告）日：2007-05-10

  [EN] Chroman derivatives according to Formula (I) below: wherein R¹, R², R³ ,and R⁴ are as defined in the specification, pharmaceutically-acceptable salts, methods of making, pharmaceutical .compositions containing and methods for using the'' same. The compounds are 5-HT_1B antagonists and are useful in the treatment of mood and . anxiety disorders as well as cognitive disorders.
  [FR] L'invention concerne des dérivés de chromane de formule (I) dans laquelle R¹, R², R³, et R⁴ sont tels que définis dans la description, des sels pharmaceutiquement acceptables de ces dérivés, des procédés de production correspondants, des compositions pharmaceutiques les contenant, ainsi que des procédés d'utilisation desdits composés. Ces composés sont des antagonistes des 5-HT_1B et peuvent servir à traiter les troubles de l'humeur et les troubles anxieux, ainsi que les troubles cognitifs.
• Synthesis and methemoglobinemia-inducing properties of benzocaine isosteres designed as humane rodenticides
  作者：Daniel Conole、Thorsten M. Beck、Morgan Jay-Smith、Malcolm D. Tingle、Charles T. Eason、Margaret A. Brimble、David Rennison

  DOI：10.1016/j.bmc.2014.02.013

  日期：2014.4

  A number of isosteres (oxadiazoles, thiadiazoles, tetrazoles and diazines) of benzocaine were prepared and evaluated for their capacity to induce methemoglobinemia-with a view to their possible application as humane pest control agents. It was found that an optimal lipophilicity for the formation of methemoglobin (metHb) in vitro existed within each series, with 1,2,4-oxadiazole 3 (metHb% = 61.0 +/- 3.6) and 1,3,4-oxadiazole 10 (metHb% = 52.4 +/- 0.9) demonstrating the greatest activity. Of the 5 candidates (compounds 3, 10, 11, 13 and 23) evaluated in vivo, failure to induce a lethal end-point at doses of 120 mg/kg was observed in all cases. Inadequate metabolic stability, particularly towards hepatic enzymes such as the CYPs, was postulated as one reason for their failure. (C) 2014 Elsevier Ltd. All rights reserved.