2-甲基恶唑-4-羧酸 | 23012-17-1

• 物质功能分类: 有机原料 - 杂环化合物
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 中文名称: 2-甲基恶唑-4-羧酸
• 中文别名: 2-甲基噁唑-4-羧酸；2-甲基噁唑-4-甲酸
• 英文名称: 2-methyl-1,3-oxazol-4-carboxylic acid
• 英文别名: 2-methyl-oxazole-4-carboxylic acid；2-methyl-1,3-oxazole-4-carboxylic acid
• CAS: 23012-17-1
• 化学式: C₅H₅NO₃
• mdl: MFCD00234078
• 分子量: 127.1
• InChiKey: IARMCEYEYXXEOS-UHFFFAOYSA-N

物化性质

• 熔点：
  182-187°C
• 沸点：
  269.9±13.0 °C(Predicted)
• 密度：
  1.348±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.6
• 重原子数：
  9
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  63.3
• 氢给体数：
  1
• 氢受体数：
  4

安全信息

• WGK Germany：
  1
• 危险性防范说明：
  P305+P351+P338
• 危险性描述：
  H319
• 储存条件：
  存储条件：2-8°C，干燥密封。

SDS

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Section 1. IDENTIFICATION OF THE SUBSTANCE/MIXTURE
Product identifiers
Product name : 2-Methyloxazole-4-carboxylic acid
CAS-No. : 23012-17-1
Relevant identified uses of the substance or mixture and uses advised against
Identified uses : Laboratory chemicals, Manufacture of substances

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Section 2. HAZARDS IDENTIFICATION
Classification of the substance or mixture
Classification according to Regulation (EC) No 1272/2008 [EU-GHS/CLP]
Eye irritation (Category 2)
This substance is not classified as dangerous according to Directive 67/548/EEC.
Label elements
Labelling according Regulation (EC) No 1272/2008 [CLP]
Pictogram
Signal word Warning
Hazard statement(s)
H319 Causes serious eye irritation.
Precautionary statement(s)
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove
contact lenses, if present and easy to do. Continue rinsing.
Supplemental Hazard none
Statements
Other hazards - none

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Section 3. COMPOSITION/INFORMATION ON INGREDIENTS
Substances
Formula : C5H5NO3
Molecular Weight : 127,1 g/mol

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Section 4. FIRST AID MEASURES
Description of first aid measures
General advice
Consult a physician. Show this safety data sheet to the doctor in attendance.
If inhaled
If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.
In case of skin contact
Wash off with soap and plenty of water. Consult a physician.
In case of eye contact
Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
If swallowed
Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.
Most important symptoms and effects, both acute and delayed
To the best of our knowledge, the chemical, physical, and toxicological properties have not been
thoroughly investigated.
Indication of any immediate medical attention and special treatment needed
no data available

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Section 5. FIREFIGHTING MEASURES
Extinguishing media
Suitable extinguishing media
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Special hazards arising from the substance or mixture
Carbon oxides, nitrogen oxides (NOx)
Advice for firefighters
Wear self contained breathing apparatus for fire fighting if necessary.
Further information
no data available

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Section 6. ACCIDENTAL RELEASE MEASURES
Personal precautions, protective equipment and emergency procedures
Use personal protective equipment. Avoid dust formation. Avoid breathing vapors, mist or gas. Ensure
adequate ventilation. Avoid breathing dust.
Environmental precautions
Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the
environment must be avoided.
Methods and materials for containment and cleaning up
Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed
containers for disposal.
Reference to other sections
For disposal see section 13.

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Section 7. HANDLING AND STORAGE
Precautions for safe handling
Avoid contact with skin and eyes. Avoid formation of dust and aerosols.
Provide appropriate exhaust ventilation at places where dust is formed.Normal measures for preventive fire
protection.
Conditions for safe storage, including any incompatibilities
Store in cool place. Keep container tightly closed in a dry and well-ventilated place.
Specific end use(s)
no data available

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Section 8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Control parameters
Components with workplace control parameters
Exposure controls
Appropriate engineering controls
Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and
at the end of workday.
Personal protective equipment
Eye/face protection
Safety glasses with side-shields conforming to EN166 Use equipment for eye protection tested
and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin protection
Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique
(without touching glove's outer surface) to avoid skin contact with this product. Dispose of
contaminated gloves after use in accordance with applicable laws and good laboratory practices.
Wash and dry hands.
The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and
the standard EN 374 derived from it.
Body Protection
Impervious clothing., The type of protective equipment must be selected according to the
concentration and amount of the dangerous substance at the specific workplace.
Respiratory protection
For nuisance exposures use type P95 (US) or type P1 (EU EN 143) particle respirator.For higher
level protection use type OV/AG/P99 (US) or type ABEK-P2 (EU EN 143) respirator cartridges.
Use respirators and components tested and approved under appropriate government standards
such as NIOSH (US) or CEN (EU).

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Section 9. PHYSICAL AND CHEMICAL PROPERTIES
Information on basic physical and chemical properties
a) Appearance Form: solid
b) Odour no data available
c) Odour Threshold no data available
d) pH no data available
e) Melting point/freezing Melting point/range: 182 - 187 °C
point
f) Initial boiling point and no data available
boiling range
g) Flash point no data available
h) Evaporation rate no data available
i) Flammability (solid, gas) no data available
j) Upper/lower no data available
flammability or
explosive limits
k) Vapour pressure no data available
l) Vapour density no data available
m) Relative density no data available
n) Water solubility no data available
o) Partition coefficient: n- log Pow: 0,398
octanol/water
p) Auto-ignition no data available
temperature
q) Decomposition no data available
temperature
r) Viscosity no data available
s) Explosive properties no data available
t) Oxidizing properties no data available
Other safety information
no data available

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Section 10. STABILITY AND REACTIVITY
Reactivity
no data available
Chemical stability
no data available
Possibility of hazardous reactions
no data available
Conditions to avoid
no data available
Incompatible materials
Strong oxidizing agents
Hazardous decomposition products
Other decomposition products - no data available

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Section 11. TOXICOLOGICAL INFORMATION
Information on toxicological effects
Acute toxicity
no data available
Skin corrosion/irritation
no data available
Serious eye damage/eye irritation
no data available
Respiratory or skin sensitization
Prolonged or repeated exposure may cause allergic reactions in certain sensitive individuals.
Germ cell mutagenicity
no data available
Carcinogenicity
IARC: No component of this product present at levels greater than or equal to 0.1% is identified as
probable, possible or confirmed human carcinogen by IARC.
Reproductive toxicity
no data available
Specific target organ toxicity - single exposure
no data available
Specific target organ toxicity - repeated exposure
no data available
Aspiration hazard
no data available
Potential health effects
Inhalation May be harmful if inhaled. May cause respiratory tract irritation.
Ingestion May be harmful if swallowed.
Skin May be harmful if absorbed through skin. May cause skin irritation.
Eyes
Causes eye irritation.
Signs and Symptoms of Exposure
To the best of our knowledge, the chemical, physical, and toxicological properties have not been
thoroughly investigated.
Additional Information
RTECS: Not available

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Section 12. ECOLOGICAL INFORMATION
Toxicity
no data available
Persistence and degradability
no data available
Bioaccumulative potential
no data available
Mobility in soil
no data available
Results of PBT and vPvB assessment
no data available
Other adverse effects
Harmful to aquatic life.
no data available

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Section 13. DISPOSAL CONSIDERATIONS
Waste treatment methods
Product
Offer surplus and non-recyclable solutions to a licensed disposal company. Contact a licensed
professional waste disposal service to dispose of this material. Dissolve or mix the material with a
combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber.
Contaminated packaging
Dispose of as unused product.

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Section 14. TRANSPORT INFORMATION
UN number
ADR/RID: - IMDG: - IATA: -
UN proper shipping name
ADR/RID: Not dangerous goods
IMDG: Not dangerous goods
IATA: Not dangerous goods
Transport hazard class(es)
ADR/RID: - IMDG: - IATA: -
Packaging group
ADR/RID: - IMDG: - IATA: -
Environmental hazards
ADR/RID: no IMDG Marine Pollutant: no IATA: no
Special precautions for user
no data available

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Section 15. REGULATORY INFORMATION
This safety datasheet complies with the requirements of Regulation (EC) No. 1907/2006.
Safety, health and environmental regulations/legislation specific for the substance or mixture
no data available
Chemical Safety Assessment
no data available

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Section 16. OTHER INFORMATION
Further information
Copyright 2013 Co. LLC. License granted to make unlimited paper copies for internal use
only.
The above information is believed to be correct but does not purport to be all inclusive and shall be
used only as a guide. The information in this document is based on the present state of our knowledge
and is applicable to the product with regard to appropriate safety precautions. It does not represent any
guarantee of the properties of the product. Corporation and its Affiliates shall not be held
liable for any damage resulting from handling or from contact with the above product. See
and/or the reverse side of invoice or packing slip for additional terms and conditions of sale.

反应信息

• 作为反应物：
  描述：

  2-甲基恶唑-4-羧酸 在 ammonium hydroxide 作用下， 生成 2-甲基咪唑
  参考文献：
  名称：

  24.恶唑和咪唑的新合成方法及其在恶唑制备中的应用

  摘要：

  DOI：

  10.1039/jr9470000096
• 作为产物：
  描述：

  ethyl (2-methyl-2-oxazolin-4-yl)carboxylate 在 sodium hydroxide 、 N-溴代丁二酰亚胺(NBS) 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 12.25h， 生成 2-甲基恶唑-4-羧酸
  参考文献：
  名称：

  3-亚杂环选择性倒置3-杂环基-7,8,9,10-四氢-（7,10-乙醇）-1,2,4-三唑并[3,4-a]酞嗪及其类似物的合成及生物学评价GABA（A）alpha5苯二氮卓结合位点的激动剂。

  摘要：

  鉴定一系列新颖的7,8,9,10-四氢-（7,10-乙醇）-1,2,4-三唑并[3,4-a]酞嗪作为GABA（A）alpha5反向激动剂，其中描述了对α5-的苯并二氮杂pine结合位点具有超过α1-，α2-和α3的GABA（A）受体亚型的结合和功能（功效）选择性。结合选择性在很大程度上取决于稠合环系统的平面度，而功能选择性则取决于三唑并哒嗪环3位杂环的性质。3-呋喃和5-甲基异恶唑被证明对GABA（A）alpha5功能选择性是最佳的。3-（5-甲基异恶唑-3-基）-6-（2-吡啶基）甲氧基-1,2,4-三唑[3，

  DOI：

  10.1021/jm0407613

文献信息

• [EN] HETEROCYCLIC INHIBITORS OF BETA - SECRETASE FOR THE TREATMENT OF NEURODEGENERATIVE DISEASES<br/>[FR] INHIBITEURS HÉTÉROCYCLIQUES DE LA BÊTA-SECRÉTASE POUR LE TRAITEMENT DE MALADIES NEURODÉGÉNÉRATIVES
  申请人：ARRAY BIOPHARMA INC

  公开号：WO2012071458A1

  公开（公告）日：2012-05-31

  The invention provides novel tricyclic compounds of Formula I' that inhibit β-secretase cleavage of APP and are useful as therapeutic agents for treating neurodegenerative diseases.

  本发明提供了一种抑制β-分泌酶裂解APP的新颖三环化合物，式I'，可用作治疗神经退行性疾病的治疗剂。
• [EN] [1,2,4]TRIAZOLO[1,5-C]QUINAZOLIN-5-AMINES<br/>[FR] [1,2,4]TRIAZOLO[1,5-C]QUINAZOLIN-5-AMINES
  申请人：BAYER AG

  公开号：WO2021028382A1

  公开（公告）日：2021-02-18

  The present invention covers [1,2,4]triazolo[1,5-c]quinazolin-5-amine compounds of general formula (I) in which R1, R2, R3, R4, R5, R6, R7 and R8 are as defined herein, methods of preparing said compounds, intermediate compounds useful for preparing said compounds, pharmaceutical compositions and combinations comprising said compounds and the use of said compounds for manufacturing pharmaceutical compositions for the treatment or prophylaxis of diseases, in particular of cancer or conditions with dysregulated immune responses or other disorders associated with aberrant AHR signaling, as a sole agent or in combination with other active ingredients.

  本发明涵盖了通式（I）中R1、R2、R3、R4、R5、R6、R7和R8如所定义的[1,2,4]三唑并[1,5-c]喹唑啉-5-胺化合物，以及制备所述化合物的方法，用于制备所述化合物的有用中间体化合物，包含所述化合物的药物组合物和组合物，以及利用所述化合物制造用于治疗或预防疾病的药物组合物，特别是癌症或与异常AHR信号传导相关的疾病，或与失调免疫反应或其他与异常AHR信号传导相关的疾病有关的情况，作为唯一药剂或与其他活性成分组合使用。
• [EN] SUBSTITUTED PYRAZOLO[1,5-A]PYRIDINE COMPOUNDS AS RET KINASE INHIBITORS<br/>[FR] COMPOSÉS DE PYRAZOLO[1,5-A]PYRIDINE SUBSTITUÉS EN TANT QU'INHIBITEURS DE LA KINASE RET
  申请人：ANDREWS STEVEN W

  公开号：WO2018071454A1

  公开（公告）日：2018-04-19

  Provided herein are compounds of the Formula I: (I) or pharmaceutically acceptable salt or solvate thereof, wherein A, B, X1, X2, X3, X4, Ring D, E, Ra, Rb, n and m have the meanings given in the specification, which are inhibitors of RET kinase and are useful in the treatment and prevention of diseases which can be treated with a RET kinase inhibitor, including RET-associated diseases and disorders.

  本文提供了Formula I的化合物：(I)或其药用可接受的盐或溶剂，其中A、B、X1、X2、X3、X4、环D、E、Ra、Rb、n和m的含义如规范中所述，它们是RET激酶的抑制剂，并且在治疗和预防可以用RET激酶抑制剂治疗的疾病中非常有用，包括与RET相关的疾病和紊乱。
• Compounds and Their Use for Treatment of Amyloid Beta-Related Diseases
  申请人：MACSÁRI István

  公开号：US20120122843A1

  公开（公告）日：2012-05-17

  The present invention relates to novel compounds of formula (I) and pharmaceutically acceptable salts thereof, pharmaceutical compositions comprising said compounds, processes for making said compounds, and their use as medicaments for treatment and/or prevention of Aβ-related diseases.

  本发明涉及式(I)的新化合物及其药用盐，包括含有该化合物的药物组合物，制备该化合物的方法，以及它们作为治疗和/或预防Aβ相关疾病的药物的用途。
• FUSED HETEROCYCLIC DERIVATIVE AND USE THEREOF
  申请人：Sakai Nozomu

  公开号：US20090137595A1

  公开（公告）日：2009-05-28

  The present invention provides a fused heterocyclic derivative having a potent kinase inhibitory activity and use thereof. A compound represented by the formula (I): wherein each symbol is as defined in the specification, except a particular compound, or a salt thereof, and a pharmaceutical agent containing the compound or a prodrug thereof, which is a kinase (VEGFR, VEGFR2, PDGFR, Raf) inhibitor, an angiogenesis inhibitor, an agent for the prophylaxis or treatment of cancer, a cancer growth inhibitor or a cancer metastasis suppressor.

  本发明提供了一种具有强大激酶抑制活性的融合杂环衍生物及其用途。 一种由以下式（I）表示的化合物： 其中除了特定化合物或其盐外，每个符号如规范中定义，以及含有该化合物或其前药的药用剂，该化合物是激酶（VEGFR、VEGFR2、PDGFR、Raf）抑制剂，血管生成抑制剂，用于癌症的预防或治疗的药剂，癌症生长抑制剂或癌症转移抑制剂。