ChemicalBook > Product Catalog >Pharmaceutical intermediates >Heterocyclic compound >Thiophene compounds >1-(5-Methyl-2-thienyl)ethan-1-one
1-(5-Methyl-2-thienyl)ethan-1-one
- CAS No.
- 13679-74-8
- Chemical Name:
- 1-(5-Methyl-2-thienyl)ethan-1-one
- Synonyms
- methylthienylcetone;-Methyl-5-acetylthiophene;5-Methyl-2-acetylthiophene;2-ACETYL-5-METHYLTHIOPHENE;Thiophene, 2-acetyl-5-methyl;1-(5-Methyl-2-thienyl)ethanone;1-(5-methyl-2-thienyl)-ethanon;2-Acetyl-5-methylthiophene,98%;2-Acetyl-5-methylthiophene >ketone,methyl5-methyl-2-thienyl
- CBNumber:
- CB8245960
- Molecular Formula:
- C7H8OS
- Molecular Weight:
- 140.2
- MOL File:
- 13679-74-8.mol
- MSDS File:
- SDS
- Modify Date:
- 2023/5/25 18:01:19
| Melting point | 24-28 °C(lit.) |
|---|---|
| Boiling point | 65-67 °C1 mm Hg(lit.) |
| Density | 1.106 g/mL at 25 °C(lit.) |
| FEMA | 4643 | 2-ACETYL-5-METHYLTHIOPHENE |
| refractive index |
n |
| Flash point | >230 °F |
| storage temp. | under inert gas (nitrogen or Argon) at 2–8 °C |
| form | Low Melting Crystalline Mass, Powder or Crystals |
| Specific Gravity | 1.119 |
| color | White to pale yellow |
| Odor | at 1.00 % in propylene glycol. sweet spicy honey hawthorn almond acacia hyacinth caramellic graham cracker |
| Odor Type | spicy |
| Sensitive | Light Sensitive |
| JECFA Number | 2107 |
| BRN | 110854 |
| LogP | 2.04 |
| CAS DataBase Reference | 13679-74-8(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Acetyl-5-methylthiophene(13679-74-8) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302 | |||||||||
| Precautionary statements | P301+P312a-P330-P501a-P264-P270-P301+P312+P330-P501 | |||||||||
| Hazard Codes | Xn,Xi | |||||||||
| Risk Statements | 20/21/22 | |||||||||
| Safety Statements | 36/37-22 | |||||||||
| RIDADR | UN 3335 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | OB4972000 | |||||||||
| Hazard Note | Irritant | |||||||||
| HazardClass | STENCH | |||||||||
| HS Code | 29349990 | |||||||||
| NFPA 704 |
|
1-(5-Methyl-2-thienyl)ethan-1-one price More Price(2)
1-(5-Methyl-2-thienyl)ethan-1-one Chemical Properties,Uses,Production
Chemical Properties
white to light yellow crystal powder
Uses
2-Acetyl-5-methylthiophene may be used in the preparation of:
- 2-ethyl-5-methylthiophene
- (5-methylthiophen-2-yl)glyoxal
- (2E)-1-(5-methylthiophen-2-yl)-3-(pyridin-3-yl)prop-2-en-1-one
- ethyl 3-(5-methylthiophen-2-yl)-3-oxopropanoate
General Description
2-Acetyl-5-methylthiophene is a volatile organic compound formed during the reaction between L-cysteine and dihydroxyacetone in glycerine or triglyceride solvent system. It can be prepared by reacting 2-methylthiophene with acetic anhydride. 2-Acetyl-5-methylthiophene undergoes palladium-catalyzed cross-coupling reaction with aryl bromides to form C-4 arylated product. It reacts with 1,2-bis(5-formyl-2-methylthiophen-3-yl)cyclopentene via Aldol condensation to form a chalcone with photochromic property. The standard molar enthalpies of combustion, formation and vaporization of 2-acetyl-5-methylthiophene are 4341.9 ± 1.8kJ/mol, 158.0 ± 2.1kJ/mol and 62.0 ± 2.6kJ/mol, respectively.
Safety Profile
A poison by intraperitoneal route. A flammable liquid. When heated to decomposition it emits toxic vapors of SOx.
1-(5-Methyl-2-thienyl)ethan-1-one Preparation Products And Raw materials
Global( 201)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| BTC pharm India | +918790379245 | AndhraPradesh, India | 1269 | 58 | Inquiry |
| A.J Chemicals | 91-9810153283 | New Delhi, India | 6124 | 58 | Inquiry |
| TCI Chemicals (India) Pvt. Ltd. | 1800 425 7889 | New Delhi, India | 6778 | 58 | Inquiry |
| Ultra Pure Lab Chem Industries LLP | 08046077962 | Mumbai, India | 252 | 58 | Inquiry |
| Reax Chemicals | 08048372701Ext 416 | Hyderabad, India | 4223 | 58 | Inquiry |
| HiMedia Laboratories | 91-22-61471919 | Maharashtra, India | 1843 | 58 | Inquiry |
| Santo Righello Pvt. Ltd | 91-9885571757 | Hyderabad, India | 919 | 58 | Inquiry |
| Dishman Pharmaceuticals & Chemicals Ltd | +91(79) 26443053 | Ahmedabad, India | 74 | 58 | Inquiry |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | China | 32760 | 60 | Inquiry |
| career henan chemical co | +86-0371-86658258 +8613203830695 | China | 29900 | 58 | Inquiry |
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