- Shanghai Nianxing Industrial Co., Ltd
- China
- Product Name: Thieno[3,2-b]thiophene-2-carboxylic acid
- Price:
- Purity: 98.0%
- Stocking Period: 10 Day
- Contact: Yang
- Shanghai Jizhi Biochemical Technology Co., Ltd
- China
- Product Name: Thieno[3,2-b]thiophene-2-carboxylic acid
- Price: ￥488.0/250mg ￥1168.0/1g
- Purity: 98.0%
- Stocking Period: 2 Day
- Contact: Liu jia
- Dayang Chem (Hangzhou) Co., Ltd.
- China
- Product Name: Thieno[3,2-b]thiophene-2-carboxylic acid
- Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
- Purity: 98.0%
- Stocking Period: Inquiry
- Contact: Ms Wang
1723-27-9
1723-27-9 structure
- Name: Thieno[3,2-b]thiophene-2-carboxylic acid
- Chemical Name: thieno[3,2-b]thiophene-5-carboxylic acid
- CAS Number: 1723-27-9
- Molecular Formula: C7H4O2S2
- Molecular Weight: 184.236
- Catalog: Pharmaceutical intermediate Heterocyclic compound Thiophene compound
- Create Date: 2018-12-11 19:06:02
- Modify Date: 2024-01-02 13:12:11
| Name | thieno[3,2-b]thiophene-5-carboxylic acid |
|---|---|
| Synonyms |
Thieno[3,2-b]thiophen-2-carbonsaeure
Thieno[3,2-b]thiophene-2-carboxylic acid thiopheno[3,2-b]thiophene-2-carboxylic acid THI073 MFCD00115174 2-carboxy-thieno[3,2-b]thiophene |
| Density | 1.6±0.1 g/cm3 |
|---|---|
| Boiling Point | 386.7±22.0 °C at 760 mmHg |
| Melting Point | 225-227ºC |
| Molecular Formula | C7H4O2S2 |
| Molecular Weight | 184.236 |
| Flash Point | 187.6±22.3 °C |
| Exact Mass | 183.965271 |
| PSA | 93.78000 |
| LogP | 4.91 |
| Vapour Pressure | 0.0±0.9 mmHg at 25°C |
| Index of Refraction | 1.770 |
| Storage condition | 2-8°C |
| Hazard Codes | Xi: Irritant; |
|---|---|
| Risk Phrases | R36/37/38 |
| Safety Phrases | S26-S37/39 |
| HS Code | 2934999090 |
|
~96%
1723-27-9 |
| Literature: Kawabata, Kohsuke; Takeguchi, Masaki; Goto, Hiromasa Macromolecules, 2013 , vol. 46, # 6 p. 2078 - 2091 |
|
~%
1723-27-9 |
| Literature: Journal of the Chemical Society - Perkin Transactions 1, , # 22 p. 3465 - 3470 |
|
~%
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| Literature: Journal of medicinal chemistry, , vol. 28, # 12 p. 1896 - 1903 |
|
~%
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| Literature: Journal of medicinal chemistry, , vol. 28, # 12 p. 1896 - 1903 |
|
~%
1723-27-9 |
| Literature: Journal of medicinal chemistry, , vol. 28, # 12 p. 1896 - 1903 |
|
~%
1723-27-9 |
| Literature: Journal of the Chemical Society, , p. 305,308 |
|
~%
1723-27-9 |
| Literature: Journal of the Chemical Society, , p. 305,308 |
|
~%
1723-27-9 |
| Literature: Journal of the Chemical Society, , p. 305,308 |
| Precursor 7 | |
|---|---|
| DownStream 5 | |
![2,3,5-TRIBROMOTHIENO[3,2-B]THIOPHENE structure](https://image.chemsrc.com/caspic/303/25121-88-4.png)
![METHYL THIENO[3,2-B]THIOPHENE-2-CARBOXYLATE structure](https://image.chemsrc.com/caspic/189/98800-10-3.png)
![PERBROMOTHIENO[3,2-B]THIOPHENE structure](https://image.chemsrc.com/caspic/239/124638-53-5.png)
![2,5-Dibromothieno[3,2-b]thiophene structure](https://image.chemsrc.com/caspic/341/25121-87-3.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% |