- Shanghai Nianxing Industrial Co., Ltd
- China
- Product Name: Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate
- Price: Check
- Purity: 98.0%
- Stocking Period: 10 Day
- Contact: Yang
- Email: sales@echemcloud.com
- Shanghai Jizhi Biochemical Technology Co., Ltd
- China
- Product Name: Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate
- Price: ￥1388.0/25g ￥178.0/1g ￥498.0/5g
- Purity: 98.0%
- Stocking Period: 1 Day
- Contact: Liu jia
- Email: 2130147988@qq.com
- Dayang Chem (Hangzhou) Co., Ltd.
- China
- Product Name: 3,4-Dihydroxy-thiophene-2,5-dicarboxylic acid diethyl ester
- Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
- Purity: 98.0%
- Stocking Period: Inquiry
- Contact: Ms Wang
- Email: enquiry@dycnchem.com
- Chainpharm Limited
- China
- Product Name: Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate
- Price: ￥Inquiry/1g ￥Inquiry/10g ￥Inquiry/100g ￥Inquiry/1kg
- Purity: 97.0%
- Stocking Period: 14 Day
- Contact: Sales Department
- Email: sales@chainpharm.com
1822-66-8
1822-66-8 structure
- Name: Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate
- Chemical Name: diethyl 3,4-dihydroxythiophene-2,5-dicarboxylate
- CAS Number: 1822-66-8
- Molecular Formula: C10H12O6S
- Molecular Weight: 260.264
- Create Date: 2018-06-21 19:08:17
- Modify Date: 2025-08-25 10:24:40
| Name | diethyl 3,4-dihydroxythiophene-2,5-dicarboxylate |
|---|---|
| Synonyms |
2,5-bis(ethoxycarbonyl)-3,4-dihydroxythiophene
2,5-Bis(ethoxycarbonyl)thiophene-3,4-diol Diethyl 3,4-dihydroxythiophene-2,5-dicarboxylate ethyl 3,4-dihydroxy-2,5-thiophene-dicarboxylate ethyl 3,4-dihydroxythiophene-2,5-dicarboxylate diethyl 3,4-dihydroxythiphene-2,5-dicarboxylate Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate 2,5-Thiophenedicarboxylic acid, 3,4-dihydroxy-, diethyl ester ethyl 5-(ethoxycarbonyl)-3,4-dihydroxythiophene-2-carboxylate 3,4-dihydroxy-2,5-thiophenedicarboxylic acid diethyl ester MFCD03094035 2,5-bis[ethoxy(hydroxy)methylidene]thiolane-3,4-dione 3,4-Dihydroxythiophene-2,5-dicarboxylic acid diethyl ester |
| Density | 1.4±0.1 g/cm3 |
|---|---|
| Boiling Point | 397.7±37.0 °C at 760 mmHg |
| Melting Point | 132-135ºC(lit.) |
| Molecular Formula | C10H12O6S |
| Molecular Weight | 260.264 |
| Flash Point | 194.3±26.5 °C |
| Exact Mass | 260.035461 |
| PSA | 121.30000 |
| LogP | 4.11 |
| Vapour Pressure | 0.0±1.0 mmHg at 25°C |
| Index of Refraction | 1.578 |
| Hazard Codes | T: Toxic;Xi: Irritant; |
|---|---|
| Risk Phrases | 61-20/21-36-36/37/38 |
| Safety Phrases | 53-45-36-26 |
| HS Code | 2934999090 |
|
~78%
1822-66-8 |
| Literature: Far Eastern New Century Corporation; Liang, Nai-Yun; Tsai, Hui-Shan; Ke, Ching-Wei; Jseng, Chin-Wan Patent: EP2548875 A1, 2013 ; Location in patent: Paragraph 0074-0082 ; |
|
~%
1822-66-8 |
| Literature: WO2008/106194 A1, ; Page/Page column 7-9 ; |
| Precursor 3 | |
|---|---|
| DownStream 8 | |
![Diethyl 2,3-dihydrothieno[3,4-b][1,4]dioxine-5,7-dicarboxylate structure](https://image.chemsrc.com/caspic/161/154934-13-1.png)
![2,3-Dihydro-thieno[3,4-b]-1,4-dioxin-5,7-dicarboxylic acid structure](https://image.chemsrc.com/caspic/176/18361-03-0.png)
![thieno[3,4-d][1,3]dioxole-4,6-dicarboxylic acid structure](https://image.chemsrc.com/caspic/370/55370-06-4.png)
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |