Methyl 2,5-Dihydrothiophene-3-carboxylate
Modify Date: 2026-07-17 12:24:28
Methyl 2,5-Dihydrothiophene-3-carboxylate structure
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Common Name | Methyl 2,5-Dihydrothiophene-3-carboxylate | ||
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| CAS Number | 67488-46-4 | Molecular Weight | 144.19200 | |
| Density | 1.231g/cm3 | Boiling Point | 217.98ºC at 760 mmHg | |
| Molecular Formula | C6H8O2S | Melting Point | 34.0-38.0°C | |
| MSDS | N/A | Flash Point | 97.996ºC | |
This table lists Chinese names, IUPAC names and various aliases of this chemical substance.
| Name | Methyl 2,5-Dihydrothiophene-3-carboxylate |
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| Synonym | More Synonyms |
This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.
| Density | 1.231g/cm3 |
|---|---|
| Boiling Point | 217.98ºC at 760 mmHg |
| Melting Point | 34.0-38.0°C |
| Molecular Formula | C6H8O2S |
| Molecular Weight | 144.19200 |
| Flash Point | 97.996ºC |
| Exact Mass | 144.02500 |
| PSA | 51.60000 |
| LogP | 0.83260 |
| Index of Refraction | 1.547 |
| InChIKey | RDHSPSSFHQGPDS-UHFFFAOYSA-N |
| SMILES | COC(=O)C1=CCSC1 |
| Storage condition | 2-8°C |
This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.
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Methyl 2,5-Dihydrothiophene-3-carboxylate
Revision number: 6
SAFETY DATA SHEET Section1. IDENTIFICATION Product name:Methyl 2,5-Dihydrothiophene-3-carboxylate Revision number:6 Section2. HAZARDS IDENTIFICATION GHS classification PHYSICAL HAZARDSNot classified Not classified HEALTH HAZARDS ENVIRONMENTAL HAZARDSNot classified GHS label elements, including precautionary statements Pictograms or hazard symbolsNone No signal word Signal word Hazard statementsNone None Precautionary statements: Section3. COMPOSITION/INFORMATION ON INGREDIENTS Substance/mixture:Substance Components:Methyl 2,5-Dihydrothiophene-3-carboxylate Percent:>95.0%(GC) CAS Number:67488-46-4 Synonyms:2,5-Dihydrothiophene-3-carboxylic Acid Methyl Ester Chemical Formula:C6H8O2S Section4. FIRST AID MEASURES Inhalation:Remove victim to fresh air and keep at rest in a position comfortable for breathing. Get medical advice/attention if you feel unwell. Skin contact:Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. If skin irritation or rash occurs: Get medical advice/attention. Eye contact:Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice/attention. Ingestion:Get medical advice/attention if you feel unwell. Rinse mouth. Protection of first-aiders:A rescuer should wear personal protective equipment, such as rubber gloves and air- tight goggles. Section5. FIRE-FIGHTING MEASURES Suitable extinguishingDry chemical, foam, water spray, carbon dioxide. media: Specific hazards arising Take care as it may decompose upon combustion or in high temperatures to from the chemical:generate poisonous fume. Methyl 2,5-Dihydrothiophene-3-carboxylate Section5. FIRE-FIGHTING MEASURES Precautions for firefighters: Fire-extinguishing work is done from the windward and the suitable fire-extinguishing method according to the surrounding situation is used. Uninvolved persons should evacuate to a safe place. In case of fire in the surroundings: Remove movable containers if safe to do so. Special protectiveWhen extinguishing fire, be sure to wear personal protective equipment. equipment for firefighters: Section6. ACCIDENTAL RELEASE MEASURES Use personal protective equipment. Keep people away from and upwind of spill/leak. Personal precautions, protective equipment and Entry to non-involved personnel should be controlled around the leakage area by emergency procedures: roping off, etc. Environmental precautions: Prevent product from entering drains. Methods and materials for Sweep dust to collect it into an airtight container, taking care not to disperse it. containment and cleaning Adhered or collected material should be promptly disposed of, in accordance with up: appropriate laws and regulations. Section7. HANDLING AND STORAGE Precautions for safe handling Handling is performed in a well ventilated place. Wear suitable protective equipment. Technical measures: Prevent dispersion of dust. Wash hands and face thoroughly after handling. Use a local exhaust if dust or aerosol will be generated. Advice on safe handling: Avoid contact with skin, eyes and clothing. Conditions for safe storage, including any incompatibilities Storage conditions:Keep container tightly closed. Store in a refrigerator. Store under inert gas. Store away from incompatible materials such as oxidizing agents. Heat-sensitive, Air-sensitive Packaging material:Comply with laws. Section8. EXPOSURE CONTROLS / PERSONAL PROTECTION Install a closed system or local exhaust as possible so that workers should not be Engineering controls: exposed directly. Also install safety shower and eye bath. Personal protective equipment Respiratory protection: Dust respirator. Follow local and national regulations. Hand protection:Protective gloves. Eye protection:Safety glasses. A face-shield, if the situation requires. Skin and body protection: Protective clothing. Protective boots, if the situation requires. Section9. PHYSICAL AND CHEMICAL PROPERTIES Physical state (20°C):Solid Form:Crystal- Lump White - Pale yellow Colour: Odour:No data available pH: No data available Melting point/freezing point:36°C No data available Boiling point/range: Flash point:No data available Flammability or explosive limits: No data available Lower: Upper:No data available No data available Relative density: Solubility(ies): No data available [Water] [Other solvents]No data available Methyl 2,5-Dihydrothiophene-3-carboxylate Section10. STABILITY AND REACTIVITY Chemical stability:Stable under proper conditions. Possibility of hazardous No special reactivity has been reported. reactions: Incompatible materials: Oxidizing agents Hazardous decomposition Carbon monoxide, Carbon dioxide, Sulfur oxides products: Section11. TOXICOLOGICAL INFORMATION Acute Toxicity:No data available Skin corrosion/irritation: No data available Serious eyeNo data available damage/irritation: Germ cell mutagenicity: No data available Carcinogenicity: IARC =No data available No data available NTP = Reproductive toxicity:No data available Section12. ECOLOGICAL INFORMATION Ecotoxicity: Fish:No data available Crustacea:No data available Algae:No data available Persistence / degradability: No data available BioaccumulativeNo data available potential(BCF): Mobility in soil No data available Log Pow: Soil adsorption (Koc):No data available Henry's LawNo data available constant(PaM3/mol): Section13. DISPOSAL CONSIDERATIONS Recycle to process, if possible. Consult your local regional authorities. You may be able to dissolve or mix material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber system. Observe all federal, state and local regulations when disposing of the substance. Section14. TRANSPORT INFORMATION Does not correspond to the classification standard of the United Nations Hazards Class: UN-No:Not listed Section15. REGULATORY INFORMATION Safe management ordinance of dangerous chemical product (State Council announces on January 26, 2002 and revised on February 16,2011): Safe use and production, the storage of a dangerous chemical, transport, loading and unloading were prescribed. Methyl 2,5-Dihydrothiophene-3-carboxylate SECTION 16 - ADDITIONAL INFORMATION N/A |
This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.
| HS Code | 2934999090 |
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This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.
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Methyl 2,5-Dihy... CAS#:67488-46-4 |
| Literature: Leonard, John; Hague, Andrew B.; Jones, Martin F.; Ward, Richard A. Synthesis, 2000 , # 4 p. 507 - 509 |
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~%
Methyl 2,5-Dihy... CAS#:67488-46-4 |
| Literature: Leonard, John; Hague, Andrew B.; Jones, Martin F.; Ward, Richard A. Synthesis, 2000 , # 4 p. 507 - 509 |
This table lists upstream starting materials and downstream derivative products related to this chemical.
| Precursor 3 | |
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| DownStream 1 | |
CAS#:67488-50-0This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.
| methyl 2,5-dihydrothiophene-3-carboxylate |
This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.
| Q: What is the boiling point of Methyl 2,5-Dihydrothiophene-3-carboxylate? |
| A: Boiling point of Methyl 2,5-Dihydrothiophene-3-carboxylate is 217.98ºC at 760 mmHg. |
| Q: What is the CAS number of Methyl 2,5-Dihydrothiophene-3-carboxylate? |
| A: CAS number of Methyl 2,5-Dihydrothiophene-3-carboxylate is 67488-46-4. |
| Q: What English synonyms does Methyl 2,5-Dihydrothiophene-3-carboxylate have? |
| A: English synonyms of Methyl 2,5-Dihydrothiophene-3-carboxylate: methyl 2,5-dihydrothiophene-3-carboxylate. |
| Q: What is the molecular formula of Methyl 2,5-Dihydrothiophene-3-carboxylate? |
| A: Molecular formula of Methyl 2,5-Dihydrothiophene-3-carboxylate is C6H8O2S. |
| Q: What is the SMILES notation of Methyl 2,5-Dihydrothiophene-3-carboxylate? |
| A: SMILES notation of Methyl 2,5-Dihydrothiophene-3-carboxylate is COC(=O)C1=CCSC1. |
| Q: What is the melting point of Methyl 2,5-Dihydrothiophene-3-carboxylate? |
| A: Melting point of Methyl 2,5-Dihydrothiophene-3-carboxylate is 34.0-38.0°C. |
| Q: What is the LogP of Methyl 2,5-Dihydrothiophene-3-carboxylate? |
| A: LogP of Methyl 2,5-Dihydrothiophene-3-carboxylate is 0.83260. |
| Q: What is the InChIKey of Methyl 2,5-Dihydrothiophene-3-carboxylate? |
| A: InChIKey of Methyl 2,5-Dihydrothiophene-3-carboxylate is RDHSPSSFHQGPDS-UHFFFAOYSA-N. |
| Q: What are the downstream products of Methyl 2,5-Dihydrothiophene-3-carboxylate? |
| A: Related downstream products(CAS) of Methyl 2,5-Dihydrothiophene-3-carboxylate: 67488-50-0. |
| Q: What are the upstream materials of Methyl 2,5-Dihydrothiophene-3-carboxylate? |
| A: Related upstream materials(CAS) of Methyl 2,5-Dihydrothiophene-3-carboxylate: 40018-26-6;55168-74-6;993-88-4. |
This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.
| Shanghai Nianxing Industrial Co., Ltd |
| Dayang Chem (Hangzhou) Co., Ltd. |