5-甲基噻吩-3-羧酸 | 19156-50-4

• 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 - 噻吩类
• 中文名称: 5-甲基噻吩-3-羧酸
• 中文别名: 5-甲基噻吩-3-甲酸
• 英文名称: 5-methyl-thiophene-3-carboxylic acid
• 英文别名: 2-Methyl-4-thiophenecarboxylic acid；5-methylthiophene-3-carboxylic acid；5-methyl-3-thiophencarboxylic acid；5-Methyl-thiophen-3-carbonsaeure；2-methyl-4-thiophen-carboxylic-acid；2-methylthiophene-4-carboxylic acid
• CAS: 19156-50-4
• 化学式: C₆H₆O₂S
• mdl: MFCD01680229
• 分子量: 142.178
• InChiKey: VFORWJLUXKGLAH-UHFFFAOYSA-N

物化性质

• 熔点：
  131-132 °C
• 沸点：
  274.7±20.0 °C(Predicted)
• 密度：
  1.319±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  9
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.166
• 拓扑面积：
  65.5
• 氢给体数：
  1
• 氢受体数：
  3

安全信息

• 危险等级：
  IRRITANT
• 危险品标志：
  Xi
• 危险类别码：
  R36
• 海关编码：
  2934999090
• 危险类别：
  IRRITANT
• 危险性防范说明：
  P305+P351+P338
• 危险性描述：
  H319

SDS

---

SECTION 1: Identification of the substance/mixture and of the company/undertaking
Product identifiers
Product name : 5-Methyl-Thiophene-3-Carboxylic Acid
REACH No. : A registration number is not available for this substance as the substance
or its uses are exempted from registration, the annual tonnage does not
require a registration or the registration is envisaged for a later
registration deadline.
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
Eye irritation (Category 2), H319
For the full text of the H-Statements mentioned in this Section, see Section 16.
Classification according to EU Directives 67/548/EEC or 1999/45/EC
Xi Irritant R36
For the full text of the R-phrases mentioned in this Section, see Section 16.
Label elements
Labelling according Regulation (EC) No 1272/2008
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
This substance/mixture contains no components considered to be either persistent, bioaccumulative and
toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher.

---

SECTION 3: Composition/information on ingredients
Substances
Molecular weight : 142,18 g/mol
Hazardous ingredients according to Regulation (EC) No 1272/2008
Component Classification Concentration
5-Methyl-Thiophene-3-Carboxylic Acid
Eye Irrit. 2; H319 <= 100 %
Hazardous ingredients according to Directive 1999/45/EC
Component Classification Concentration
5-Methyl-Thiophene-3-Carboxylic Acid
Xi, R36 <= 100 %
For the full text of the H-Statements and R-Phrases mentioned in this Section, see Section 16

---

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
The most important known symptoms and effects are described in the labelling (see section 2.2) and/or in
section 11
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
Nature of decomposition products not known.
Advice for firefighters
Wear self-contained breathing apparatus for firefighting 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 vapours, mist or gas. Ensure
adequate ventilation. Avoid breathing dust.
For personal protection see section 8.
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.
For precautions see section 2.2.
Conditions for safe storage, including any incompatibilities
Store in cool place. Keep container tightly closed in a dry and well-ventilated place.
Storage class (TRGS 510): Non Combustible Solids
Specific end use(s)
Apart from the uses mentioned in section 1.2 no other specific uses are stipulated

---

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).
Control of environmental exposure
Do not let product enter drains.

---

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 No data available
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) 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

---

SECTION 10: Stability and reactivity
Reactivity
No data available
Chemical stability
Stable under recommended storage conditions.
Possibility of hazardous reactions
No data available
Conditions to avoid
No data available
Incompatible materials
Strong oxidizing agents
Hazardous decomposition products
In the event of fire: see section 5

---

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 sensitisation
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
Additional Information
RTECS: Not available
To the best of our knowledge, the chemical, physical, and toxicological properties have not been
thoroughly investigated.

---

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
This substance/mixture contains no components considered to be either persistent, bioaccumulative and
toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher.
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: - 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

---

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
For this product a chemical safety assessment was not carried out

---

SECTION 16: Other information
Full text of H-Statements referred to under sections 2 and 3.
Eye Irrit. Eye irritation
H319 Causes serious eye irritation.
Full text of R-phrases referred to under sections 2 and 3
Xi Irritant
R36 Irritating to eyes.
Further information
Copyright 2014 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：

  5-甲基噻吩-3-羧酸 在 lithium aluminium tetrahydride 、 戴斯-马丁氧化剂 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 3.0h， 生成 5-甲基噻吩-3-甲醛
  参考文献：
  名称：

  [EN] COMBINATION TREATMENTS COMPRISING ADMINISTRATION OF 1H-PYRAZOLO[4,3-B]PYRIDINES
  [FR] TRAITEMENTS COMBINÉS COMPRENANT L'ADMINISTRATION DE 1H-PYRAZOLO [4,3-B] PYRIDINES

  摘要：

  本发明提供了式(I)的1H-吡唑并[4,3-b]吡啶-7-胺作为PDE1抑制剂，以及一种第二化合物，该化合物在治疗精神障碍方面是有用的，并且它们的联合使用作为药物，特别用于治疗精神和/或认知障碍。

  公开号：

  WO2019115566A1
• 作为产物：
  描述：

  4-溴-2-甲基噻吩 在 1,3-双(二苯基膦)丙烷 、 水 、 palladium diacetate 、 三乙胺 、 sodium hydroxide 作用下， 以 甲醇 、 二甲基亚砜 为溶剂， 65.0~70.0 ℃ 、206.85 kPa 条件下， 反应 0.75h， 生成 5-甲基噻吩-3-羧酸
  参考文献：
  名称：

  [EN] (THIENO[2,3-b][1,5]BENZOXAZEPIN-4-YL)PIPERAZIN-1-YL COMPOUNDS AS DUAL ACTIVITY H1 INVERSE AGONISTS/5-HT2A ANTAGONISTS
  [FR] COMPOSÉS (THIÉNO[2,3-B][1,5]BENZOXAZÉPIN-4-YL)PIPÉRAZIN-1-YLÉS EN TANT QUE COMPOSÉS À DOUBLE ACTIVITÉ AGONISTES INVERSES H1/ANTAGONISTES 5-HT2A

  摘要：

  描述了一种公式（I）的双重H1逆向激动剂/5-HT2A受体拮抗剂，以及其用途和制备方法。

  公开号：

  WO2013032804A1

文献信息

• [EN] 1H-PYRAZOLO[4,3-B]PYRIDINES AS PDE1 INHIBITORS<br/>[FR] 1H-PYRAZOLO [4,3-B] PYRIDINES EN TANT QU'INHIBITEURS DE PDE1
  申请人：H LUNDBECK AS

  公开号：WO2018007249A1

  公开（公告）日：2018-01-11

  The present invention provides 1H-pyrazolo[4,3-b]pyridin-7-amines of formula (I) as PDE1 inhibitors and their use as a medicament, in particular for the treatment of neurodegenerative disorders and psychiatric disorders.

  本发明提供了式(I)的1H-吡唑并[4,3-b]吡啶-7-胺作为PDE1抑制剂，并将其用作药物，特别用于治疗神经退行性疾病和精神疾病。
• MACROCYCLES AS PDE1 INHIBITORS
  申请人：H. Lundbeck A/S

  公开号：US20190185489A1

  公开（公告）日：2019-06-20

  The present invention provides macrocycles of formula (I) as PDE1 inhibitors and their use as a medicament, in particular for the treatment of neurodegenerative disorders and psychiatric disorders.

  本发明提供了式(I)的大环化合物作为PDE1抑制剂，并将其用作药物，特别用于治疗神经退行性疾病和精神疾病。
• 1H-PYRAZOLO[4,3-B]PYRIDINES AS PDE1 INHIBITORS
  申请人：H. Lundbeck A/S

  公开号：US20190194189A1

  公开（公告）日：2019-06-27

  The present invention provides 1H-pyrazolo[4,3-b]pyridines of formula (I) as PDE1 inhibitors and their use as a medicament, in particular for the treatment of neurodegenerative disorders and psychiatric disorders.

  本发明提供了式(I)的1H-吡唑并[4,3-b]吡啶类化合物作为PDE1抑制剂，并将其用作药物，特别用于治疗神经退行性疾病和精神疾病。
• [EN] PYRAZOLO[1,5-A]PYRIMIDINYL CARBOXAMIDE COMPOUNDS AND THEIR USE IN THE TREATMENT OF MEDICAL DISORDERS<br/>[FR] COMPOSÉS DE PYRAZOLO[1,5-A]PYRIMIDINYL CARBOXAMIDE ET LEUR UTILISATION DANS LE TRAITEMENT DE TROUBLES MÉDICAUX
  申请人：LYSOSOMAL THERAPEUTICS INC

  公开号：WO2017176960A1

  公开（公告）日：2017-10-12

  The invention provides substituted pyrazolo[1,5-a]pyrimidinyl carboxamide and related organic compounds, compositions containing such compounds, medical kits, and methods for using such compounds and compositions to treat medical disorders, e.g., Gaucher disease, Parkinson's disease, Lewy body disease, dementia, or multiple system atrophy, in a patient. Exemplary substituted pyrazolo[1,5-a]pyrimidinyl carboxamide compounds described herein include 2-heterocyclyl-4-alkyl-pyrazolo[1,5-a]pyrirnidine-3-carboxarnide compounds and variants thereof.

  本发明提供了取代的吡唑[1,5-a]嘧啶基甲酰胺及其相关有机化合物，包含此类化合物的组合物，医疗包，以及使用此类化合物和组合物治疗医疗障碍的方法，例如，戈谢病，帕金森病，路易体病，痴呆症或多系统萎缩症。所述的代表性的取代吡唑[1,5-a]嘧啶基甲酰胺化合物包括2-杂环基-4-烷基-吡唑[1,5-a]嘧啶-3-甲酰胺化合物及其变体。
• Nickel-Catalyzed Direct Alkylation of C–H Bonds in Benzamides and Acrylamides with Functionalized Alkyl Halides via Bidentate-Chelation Assistance
  作者：Yoshinori Aihara、Naoto Chatani

  DOI：10.1021/ja401344e

  日期：2013.4.10

  The alkylation of the ortho C-H bonds in benzamides and acrylamides containing an 8-aminoquinoline moiety as a bidentate directing group with unactivated alkyl halides using nickel complexes as catalysts is described. The reaction shows high functional group compatibility. In reactions of meta-substituted aromatic amides, the reaction proceeds in a highly selective manner at the less hindered C-H bond

  描述了使用镍配合物作为催化剂，使用未活化的卤代烷对苯甲酰胺和含有 8-氨基喹啉部分作为双齿导向基团的苯甲酰胺和丙烯酰胺中的邻位 CH 键进行烷基化。该反应显示出高度的官能团相容性。在间位取代芳香酰胺的反应中，反应在受阻较小的 CH 键上以高度选择性的方式进行。