2,2-二氟-1-甲基环丙烷 羧酸 | 128073-33-6

• 物质功能分类: 有机原料 - 羧酸类化合物及衍生物
• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 中文名称: 2,2-二氟-1-甲基环丙烷 羧酸
• 中文别名: 2,2-二氟-1-甲基环丙烷羧酸；(±)-2,2-二氟-1-甲基环丙烷羧酸
• 英文名称: 2,2-difluoro-1-methylcyclopropanecarboxylic acid
• 英文别名: 2,2-difluoro-1-methylcyclopropane-1-carboxylic acid；2,2-difluoro-1-methyl-1-cyclopropanecarboxylic acid
• CAS: 128073-33-6
• 化学式: C₅H₆F₂O₂
• mdl: MFCD07777163
• 分子量: 136.098
• InChiKey: HLFLYOQLHYYNLT-UHFFFAOYSA-N

物化性质

• 熔点：
  62-64℃
• 沸点：
  178.5±40.0 °C(Predicted)
• 密度：
  1.37±0.1 g/cm3(Predicted)
• 闪点：
  83℃

计算性质

• 辛醇/水分配系数(LogP)：
  0.9
• 重原子数：
  9
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  4

安全信息

• 危险等级：
  IRRITANT
• 安全说明：
  S26
• 危险类别码：
  R36/37/38
• 海关编码：
  2916209090
• WGK Germany：
  3
• 危险标志：
  GHS05,GHS07
• 危险性描述：
  H302,H314
• 危险性防范说明：
  P280,P305 + P351 + P338,P310
• 包装等级：
  II
• 危险类别：
  8
• 危险品运输编号：
  3261

SDS

---

Section 1. IDENTIFICATION OF THE SUBSTANCE/MIXTURE
Product identifiers
Product name : 2,2-Difluoro-1-methylcyclopropanecarboxylic acid
CAS-No. : 128073-33-6
Relevant identified uses of the substance or mixture and uses advised against
Identified uses : Laboratory chemicals, Manufacture of substances

---

Section 2. HAZARDS IDENTIFICATION
Classification of the substance or mixture
Classification according to Regulation (EC) No 1272/2008 [EU-GHS/CLP]
Acute toxicity, Oral (Category 4)
Skin corrosion (Category 1B)
Classification according to EU Directives 67/548/EEC or 1999/45/EC
Harmful if swallowed. Causes burns.
Label elements
Labelling according Regulation (EC) No 1272/2008 [CLP]
Pictogram
Signal word Danger
Hazard statement(s)
H302 Harmful if swallowed.
H314 Causes severe skin burns and eye damage.
Precautionary statement(s)
P280 Wear protective gloves/ protective clothing/ eye protection/ face
protection.
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove
contact lenses, if present and easy to do. Continue rinsing.
P310 Immediately call a POISON CENTER or doctor/ physician.
Supplemental Hazard none
Statements
According to European Directive 67/548/EEC as amended.
Hazard symbol(s)
R-phrase(s)
R22 Harmful if swallowed.
R34 Causes burns.
S-phrase(s)
S26 In case of contact with eyes, rinse immediately with plenty of water and
seek medical advice.
S36/37/39 Wear suitable protective clothing, gloves and eye/face protection.
S45 In case of accident or if you feel unwell, seek medical advice immediately
(show the label where possible).
Other hazards - none

---

Section 3. COMPOSITION/INFORMATION ON INGREDIENTS
Substances
Formula : C5H6F2O2
Molecular Weight : 136,10 g/mol
Component Concentration
2,2-Difluoro-1-methylcyclopropanecarboxylic acid
CAS-No. 128073-33-6 -

---

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
Take off contaminated clothing and shoes immediately. 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
Do NOT induce vomiting. 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

---

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
no data available
Advice for firefighters
Wear self contained breathing apparatus for fire fighting if necessary.
Further information
no data available

---

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. Evacuate personnel to safe areas. Avoid breathing dust.
Environmental precautions
Do not let product enter drains.
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.

---

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.
Conditions for safe storage, including any incompatibilities
Store in cool place. Keep container tightly closed in a dry and well-ventilated place.
Specific end uses
no data available

---

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
Face shield and safety glasses 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
Complete suit protecting against chemicals, The type of protective equipment must be selected
according to the concentration and amount of the dangerous substance at the specific workplace.
Respiratory protection
Where risk assessment shows air-purifying respirators are appropriate use a full-face particle
respirator type N100 (US) or type P3 (EN 143) respirator cartridges as a backup to engineering
controls. If the respirator is the sole means of protection, use a full-face supplied air respirator. Use
respirators and components tested and approved under appropriate government standards such
as NIOSH (US) or CEN (EU).

---

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: 58 - 63 °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- no data available
octanol/water
p) Autoignition 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

---

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

---

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
no data available
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. Material is extremely destructive to the tissue of
the mucous membranes and upper respiratory tract.
Ingestion Harmful if swallowed. Causes burns.
Skin May be harmful if absorbed through skin. Causes skin burns.
Eyes Causes eye burns.
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

---

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
no data available

---

Section 13. DISPOSAL CONSIDERATIONS
Waste treatment methods
Product
Offer surplus and non-recyclable solutions to a licensed disposal company. 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.

---

Section 14. TRANSPORT INFORMATION
UN number
ADR/RID: 3261 IMDG: 3261 IATA: 3261
UN proper shipping name
ADR/RID: CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S. (2,2-Difluoro-1-
methylcyclopropanecarboxylic acid)
IMDG: CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S. (2,2-Difluoro-1-
methylcyclopropanecarboxylic acid)
IATA: Corrosive solid, acidic, organic, n.o.s. (2,2-Difluoro-1-methylcyclopropanecarboxylic acid)
Transport hazard class(es)
ADR/RID: 8 IMDG: 8 IATA: 8
Packaging group
ADR/RID: II IMDG: II IATA: II
Environmental hazards
ADR/RID: no IMDG Marine pollutant: no IATA: no
Special precautions for user
no data available

---

---

SECTION 15 - REGULATORY INFORMATION
N/A

---

SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  2,2-二氟-1-甲基环丙烷 羧酸 在 氯化亚砜 、 硫酸 作用下， 反应 1.0h， 生成 Ethyl 2,2-difluoro-1-methylcyclopropanecarboxylate
  参考文献：
  名称：

  氟化环丙烷羧酸及其衍生物

  摘要：

  由适当的卤代氟甲烷与碱一起生成的卤代氟卡宾如：CF 2，：CClF或：CBrF加到丁二烯或异戊二烯中，可以中等至良好的产率得到相应的1-乙烯基取代的卤代氟代环丙烷。乙烯基有助于卡宾的添加并允许随后的广泛衍生。提出了几种转化，包括硼氢化，氧化和Curtius降解。此外，用阮内镍催化地实现2-氯-2-氟环丙烷羧酸衍生物中的氯原子被氢取代。该序列为单氟取代的环丙烷羧酸的制备提供了便利的途径。

  DOI：

  10.1016/s0022-1139(00)80369-3
• 作为产物：
  描述：

  2,2-二氟-1-甲基-1-乙烯基-环丙烷 在 potassium permanganate 作用下， 以 水 为溶剂， 反应 36.0h， 以77%的产率得到2,2-二氟-1-甲基环丙烷 羧酸
  参考文献：
  名称：

  氟化环丙烷羧酸及其衍生物

  摘要：

  由适当的卤代氟甲烷与碱一起生成的卤代氟卡宾如：CF 2，：CClF或：CBrF加到丁二烯或异戊二烯中，可以中等至良好的产率得到相应的1-乙烯基取代的卤代氟代环丙烷。乙烯基有助于卡宾的添加并允许随后的广泛衍生。提出了几种转化，包括硼氢化，氧化和Curtius降解。此外，用阮内镍催化地实现2-氯-2-氟环丙烷羧酸衍生物中的氯原子被氢取代。该序列为单氟取代的环丙烷羧酸的制备提供了便利的途径。

  DOI：

  10.1016/s0022-1139(00)80369-3

文献信息

• HETEROCYCLIC COMPOUND
  申请人：Takeda Pharmaceutical Company Limited

  公开号：US20170015655A1

  公开（公告）日：2017-01-19

  The present invention provide a heterocyclic compound having a HDAC inhibitory action, and useful for the treatment of autoimmune diseases and/or inflammatory diseases, graft versus host disease, cancers, central nervous diseases including neurodegenerative diseases, Charcot-Marie-Tooth disease and the like, and a pharmaceutical composition comprising the compound. The present invention relates to a compound represented by the formula (I): wherein each symbol is as defined in the specification, or a salt thereof.

  本发明提供一种具有HDAC抑制作用的杂环化合物，用于治疗自身免疫疾病和/或炎症性疾病、移植物抗宿主病、癌症、包括神经退行性疾病、沙科-玛丽-图特病等在内的中枢神经疾病，以及包含该化合物的药物组合物。本发明涉及一种由下式（I）表示的化合物： 其中每个符号如规范中定义，或其盐。
• BRIDGED BICYCLIC COMPOUNDS AS FARNESOID X RECEPTOR MODULATORS
  申请人：BRISTOL-MYERS SQUIBB COMPANY

  公开号：US20190127358A1

  公开（公告）日：2019-05-02

  The present invention provides compounds of Formula (I): or stereoisomers, tautomers, or pharmaceutically acceptable salts or solvates thereof, wherein all the variables are as defined herein. These compounds modulate the activity of farnesoid X receptor (FXR), for example, as agonists. This invention also relates to pharmaceutical compositions comprising these compounds and methods of treating a disease, disorder, or condition associated with FXR dysregulation, such as pathological fibrosis, transplant rejection, cancer, osteoporosis, and inflammatory disorders, by using the compounds and pharmaceutical compositions.

  本发明提供了式（I）的化合物： 或其立体异构体、互变异构体或药学上可接受的盐或溶剂，其中所有变量如本文所定义。这些化合物调节法尼索尔X受体（FXR）的活性，例如作为激动剂。本发明还涉及包括这些化合物的药物组合物以及利用这些化合物和药物组合物治疗与FXR失调相关的疾病、紊乱或病况的方法，例如病理性纤维化、移植排斥、癌症、骨质疏松症和炎症性疾病。
• PESTICIDAL COMPOSITIONS AND RELATED METHODS
  申请人：DOW AGROSCIENCES LLC

  公开号：US20150111734A1

  公开（公告）日：2015-04-23

  A pesticidal composition comprises at least one compounds selected from a compound of formula, or any agriculturally acceptable salt thereof, wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6, R 7 , R 8 , Q, Z, L, L a , and x are as described herein. A method of controlling pests comprises applying the pesticidal composition near a population of pests.

  一种杀虫组合物包括至少一种选择自以下化合物的化合物或其任何农业上可接受的盐，其中R1、R2、R3、R4、R5、R6、R7、R8、Q、Z、L、La和x如本文所述。一种控制害虫的方法包括在害虫种群附近施用该杀虫组合物。
• [EN] 2 - BENZYL, 3 - (PYRIMIDIN- 2 -YL) SUBSTITUTED PYRAZOLES USEFUL AS SGC STIMULATORS<br/>[FR] PYRAZOLES 2-BENZYLE, 3-(PYRIMIDIN-2-YLE)-SUBSTITUÉS UTILES COMME STIMULATEURS DE SCG
  申请人：IRONWOOD PHARMACEUTICALS INC

  公开号：WO2013101830A1

  公开（公告）日：2013-07-04

  2-Benzyl, 3 - (pyrimidin- 2 -YL) substituted pyrazoles are described. They are useful as stimulators of sGC, particularly NO - independent, heme - dependent stimulators. These compounds may be useful for treating, preventing or managing various disorders that are herein disclosed.

  描述了2-苄基，3-（嘧啶-2-基）取代的吡唑啉。它们可作为sGC的刺激剂，特别是NO-独立的、血红蛋白依赖的刺激剂。这些化合物可能对治疗、预防或管理本文披露的各种疾病有用。
• Hydroxyalkinyl-azolyl derivatives
  申请人：Bayer Aktiengesellschaft

  公开号：US05025030A1

  公开（公告）日：1991-06-18

  Novel hydroxyalkinyl-azolyl derivatives of the formula ##STR1## in which Ar represents optionally substituted aryl, R represents alkyl, optionally substituted aryl or optionally substituted aralkyl, X.sup.1 represents halogen, X.sup.2 represents hydrogen or halogen, X.sup.3 represents hydrogen or halogen, X.sup.4 represents hydrogen or halogen and n represents 0 or 1, and acid addition salts and metal salt complexes thereof, are outstandingly effective as fungicides.

  新型的羟基烯丙基-唑啉衍生物的化学式为##STR1## 其中Ar代表可选择取代的芳基，R代表烷基，可选择取代的芳基或可选择取代的芳基烷基，X.sup.1代表卤素，X.sup.2代表氢或卤素，X.sup.3代表氢或卤素，X.sup.4代表氢或卤素，n代表0或1，以及其酸盐和金属盐络合物，对于杀菌剂具有杰出的效果。