2-Mercaptothi ophene
Thiophene-2-thiol
CAS: 7774-74-5
Molecular Formula: C4H4S2
2-Mercaptothi ophene - Names and Identifiers
| Name | Thiophene-2-thiol |
| Synonyms | Thiophenethiol Thiophene-2-thiol 2-Mercaptothiophene 2-Thienyl mercaptan 2-Mercaptothi ophene 2-Mercapto thiophene |
| CAS | 7774-74-5 |
| EINECS | 231-881-1 |
| InChI | InChI=1/C4H4S2/c5-4-2-1-3-6-4/h1-3,5H |
| InChIKey | SWEDAZLCYJDAGW-UHFFFAOYSA-N |
2-Mercaptothi ophene - Physico-chemical Properties
| Molecular Formula | C4H4S2 |
| Molar Mass | 116.205 |
| Density | 1.269g/cm3 |
| Boling Point | 166.9°C at 760 mmHg |
| Flash Point | 54.7°C |
| Vapor Presure | 2.3mmHg at 25°C |
| pKa | 6.38±0.43(Predicted) |
| Storage Condition | Keep in dark place,Inert atmosphere,2-8°C |
| Refractive Index | 1.636 |
| Physical and Chemical Properties | boiling point 62 ℃ (12 torr) density 1.23 |
2-Mercaptothi ophene - Risk and Safety
| Risk Codes | R21/22 - Harmful in contact with skin and if swallowed. R36/38 - Irritating to eyes and skin. |
| Safety Description | 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. |
| UN IDs | UN3334 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 10-13-23 |
| HS Code | 29349990 |
| Hazard Class | 9 |
| Packing Group | III |
2-Mercaptothi ophene - Upstream Downstream Industry
2-Mercaptothi ophene - Introduction
Open Data Unverified Data
Properties:
1. Thiophene-2-thiol is a colorless to pale yellow liquid with a pungent odor.
2. It exhibits strong reducing properties and can be easily oxidized to carbon disulfide.
3. It can turn deeper yellow and is volatile in air.
Uses:
1. Thiophene-2-thiol plays an important role as an organic sulfur compound in organic synthesis, serving as a raw material or intermediate for the synthesis of other organic sulfur compounds.
2. It is commonly used as a catalyst, coordination ligand, or redox reagent.
3. It can be used as an introduction reagent for sulfur-containing ring systems in certain chemical reactions.
Synthesis:
Thiophene-2-thiol is typically prepared by reacting thiophene with sodium sulfide or hydrogen sulfide. The specific synthesis method involves dissolving thiophene in a sodium hydroxide solution, bubbling hydrogen sulfide gas through the reaction mixture, and then isolating and separating the final product through appropriate extraction and purification steps.
Safety:
1. Thiophene-2-thiol has a pungent odor and should be kept away from skin and eyes to avoid contact.
2. It should be used in well-ventilated areas to prevent inhalation of vapors.
3. Avoid contact with oxygen or oxidizing agents during handling and storage to reduce the risk of fire and explosion.
4. Thiophene-2-thiol is toxic, so proper protective measures should be taken during use, such as using protective eyewear and gloves.
Last Update：2024-04-09 19:43:38
2-Mercaptothi ophene - Nature
| FEMA | 3062 | 2-THIENYL MERCAPTAN |
| Sensitivity | Air Sensitive |
| JECFA Number | 1052 |
| BRN | 104650 |
Last Update：2024-04-10 22:29:15
2-Mercaptothi ophene - Security information
| Hazard Note | Irritant |
Last Update：2024-04-10 22:29:15
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View History
Raw Materials for 2-Mercaptothi ophene
2-Ethylthiophene
Thiophene, 2-(2-propen-1-ylthio)-
Propanoic acid, 3-(2-thienylthio)-, 2-ethylhexyl ester
Thiophene(SIV) (9CI)
THIOPHEN-2-YL-MAGNESIUM BROMIDE 1.0M
2-(2-THIENYLTHIO)THIOPHENE
2-THIENYLLITHIUM
2-Bromothiophene
Thiophene, 2-(2-propen-1-ylthio)-
Propanoic acid, 3-(2-thienylthio)-, 2-ethylhexyl ester
Thiophene(SIV) (9CI)
THIOPHEN-2-YL-MAGNESIUM BROMIDE 1.0M
2-(2-THIENYLTHIO)THIOPHENE
2-THIENYLLITHIUM
2-Bromothiophene