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157834-21-4生产厂家

157834-21-4价格

157834-21-4

157834-21-4结构式
157834-21-4结构式

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中文名 2-氟-3-三氟甲基苯硼酸
英文名 2-Fluoro-3-trifluoromethylphenylboronic acid
中文别名 2-氟-3-三氟甲基苯基硼酸
2-氟-3-(三氟甲基)苯硼酸
英文别名 MFCD07784336
2-Fluoro-3-(trifluoromethyl)phenylboronic acid
2-Fluoro-3-(trifluoromethyl)benzeneboronic acid
[2-Fluoro-3-(trifluoromethyl)phenyl]boronic acid
Boronic acid, B-[2-fluoro-3-(trifluoromethyl)phenyl]-
密度 1.4±0.1 g/cm3
沸点 276.5±50.0 °C at 760 mmHg
熔点 56-58ºC(lit.)
分子式 C7H5BF4O2
分子量 207.918
闪点 121.0±30.1 °C
精确质量 208.031876
PSA 40.46000
LogP 2.24
外观性状 固体;White to Almost white powder to crystal
蒸汽压 0.0±0.6 mmHg at 25°C
折射率 1.446
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,避免与强氧化剂接触。

水溶解性 可溶于:甲醇
计算化学

1、 疏水参数计算参考值(XlogP):

2、 氢键供体数量:2

3、 氢键受体数量:6

4、 可旋转化学键数量:1

5、 互变异构体数量:

6、 拓扑分子极性表面积(TPSA):40.5

7、 重原子数量:14

8、 表面电荷:0

9、 复杂度:197

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: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):56-58

5. 沸点(ºC,常压):未确定

6. 沸点(ºC,0.5mmHg):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(mmHg,20ºC):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

Material Safety Data Sheet

Section1. Identification of the substance
2-Fluoro-3-trifluoromethylphenylboronic acid
Product Name:
Synonyms:2-Fluoro-3-(trifluoromethyl)phenylboronic acid

Section2. Hazards identification
Harmful by inhalation, in contact with skin, and if swallowed.
H315:Causes skin irritation
H319:Causes serious eye irritation
H335:May cause respiratory irritation
P261:Avoid breathing dust/fume/gas/mist/vapours/spray
Wear protective gloves/protective clothing/eye protection/face protection
P280:
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present
and easy to do – continue rinsing
P304+P340:IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
P405:Store locked up

Section3. Composition/information on ingredients.
2-Fluoro-3-trifluoromethylphenylboronic acid
Ingredient name:
CAS number:157834-21-4

Section4. First aid measures
Immediately wash skin with copious amounts of water for at least 15 minutes while removing
Skin contact:
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.
Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention.
Ingestion:

Section5. 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.

Section6. 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.

Section7. 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.
Storage:Store in closed vessels.

Section8. 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.

Section9. Physical and chemical properties
Not specified
Appearance:
Boiling point:No data
Melting point:No data
Flash point:No data
Density:No data
Molecular formula:C7H5BF4O2
Molecular weight:207.9

Section10. Stability and reactivity
Conditions to avoid: Heat, flames and sparks.
Materials to avoid: Oxidizing agents.
Possible hazardous combustion products: Carbon monoxide, hydrogen fluoride.

Section11. Toxicological information
No data.

Section12. Ecological information
No data.

Section13. 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.

Section14. Transportation information
Non-harzardous for air and ground transportation.

Section15. 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.


SECTION 16 - ADDITIONAL INFORMATION
N/A
个人防护装备 Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
危害码 (欧洲) Xi:Irritant;
危险品运输编码 NONH for all modes of transport
海关编码 2931900090
海关编码 2931900090
中文概述 2931900090. 其他有机-无机化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:AB(入境货物通关单,出境货物通关单). 最惠国关税:6.5%. 普通关税:30.0%
Summary 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%