Determine the necessary mass, volume, or concentration for preparing a solution.
≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Room temperature,Argon charged Ships Normal Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 6 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
| Pubchem Sid | 488187841 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/488187841 |
| Canonical Smiles | C1=CSC2=C1SC=C2 |
| IUPAC Name | thieno[3,2-b]thiophene |
| InChIKey | VJYJJHQEVLEOFL-UHFFFAOYSA-N |
| INCHI | 1S/C6H4S2/c1-3-7-6-2-4-8-5(1)6/h1-4H |
| Isomeric SMILES | C1=CSC2=C1SC=C2 |
| WGK Germany | 3 |
| PubChem CID | 136063 |
| Molecular Weight | 140.23 |
| Beilstein | 19(5)1,429 |
| Reaxy-Rn | 110009 |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Organoheterocyclic compounds |
| Class | Thienothiophenes |
| Subclass | Not available |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Thienothiophenes |
| Alternative Parents | Thiophenes Heteroaromatic compounds Hydrocarbon derivatives |
| Molecular Framework | Aromatic heteropolycyclic compounds |
| Substituents | Thienothiophene - Heteroaromatic compound - Thiophene - Hydrocarbon derivative - Aromatic heteropolycyclic compound |
| Description | This compound belongs to the class of organic compounds known as thienothiophenes. These are organic compounds containing two thiophene rings fused to each other. |
| External Descriptors | Not available |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
| Certificate of Analysis | May 15, 2026 | T119992 | |
| Certificate of Analysis | May 15, 2026 | T119992 | |
| Certificate of Analysis | May 15, 2026 | T119992 | |
| Certificate of Analysis | May 15, 2026 | T119992 | |
| Certificate of Analysis | Jun 09, 2025 | T119992 | |
| Certificate of Analysis | Jun 09, 2025 | T119992 | |
| Certificate of Analysis | Jul 16, 2024 | T119992 | |
| Certificate of Analysis | May 29, 2023 | T119992 | |
| Certificate of Analysis | May 29, 2023 | T119992 | |
| Certificate of Analysis | May 29, 2023 | T119992 | |
| Certificate of Analysis | May 29, 2023 | T119992 | |
| Certificate of Analysis | May 11, 2023 | T119992 | |
| Certificate of Analysis | May 11, 2023 | T119992 | |
| Certificate of Analysis | May 11, 2023 | T119992 | |
| Certificate of Analysis | May 11, 2023 | T119992 | |
| Certificate of Analysis | May 11, 2023 | T119992 | |
| Certificate of Analysis | May 11, 2023 | T119992 | |
| Certificate of Analysis | May 11, 2023 | T119992 | |
| Certificate of Analysis | May 11, 2023 | T119992 | |
| Certificate of Analysis | Aug 21, 2021 | T119992 |
| Solubility | Soluble in Methanol |
|---|---|
| Sensitivity | air sensitive |
| Boil Point(°C) | 71°C |
| Melt Point(°C) | 56°C |
| Molecular Weight | 140.200 g/mol |
| XLogP3 | 2.700 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 0 |
| Exact Mass | 139.975 Da |
| Monoisotopic Mass | 139.975 Da |
| Topological Polar Surface Area | 56.500 Ų |
| Heavy Atom Count | 8 |
| Formal Charge | 0 |
| Complexity | 80.500 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 1 |
| 1. Tong Zhou, Xue Xia, Heping Cui, Khizar Hayat, Xiaoming Zhang, Chi-Tang Ho. (2023) Promotion or Inhibition Effects of Exogenous Glutathione-Degraded Amino Acids on the Formation of 2,3-Butanedione and Pyrazines via Varied Pathways of Interaction with α-Dicarbonyl Compounds Derived from N-(1-Deoxy-d-xylulos-1-yl)-alanine. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, [PMID:37737140] [10.1021/acs.jafc.3c04424] |
| 2. Tong Zhou, Xue Xia, Heping Cui, Yun Zhai, Foxin Zhang, Khizar Hayat, Xiaoming Zhang, Chi-Tang Ho. (2023) Cysteine-Induced pH-Dependent Formation of Thiols and Sulfides or 2-Acetylthiazole and Pyrazines during Thermal Treatment of N-(1-Deoxy-d-xylulos-1-yl)-alanine. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, [PMID:36696632] [10.1021/acs.jafc.2c08360] |
| 3. Fangli Yi, Qing Yang, Xinyu Li, Yiqi Yuan, Hongmei Cao, Kewei Liu, Hongjian Yan. (2022) A 1,3,5-triazine and benzodithiophene based donor-acceptor type semiconducting conjugated polymer for photocatalytic overall water splitting. JOURNAL OF SOLID STATE CHEMISTRY, [PMID:] [10.1016/j.jssc.2022.123769] |
| 4. Tong Zhou, Xue Xia, Heping Cui, Khizar Hayat, Xiaoming Zhang, Chi-Tang Ho. (2022) Competitive Formation of 2,3-Butanedione and Pyrazines through Intervention of Added Cysteine during Thermal Processing of Alanine-Xylose Amadori Compounds. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, [PMID:36444759] [10.1021/acs.jafc.2c07026] |
| 5. Shengbo Zhu, Zhongwei An, Xinbing Chen, Pei Chen, Qianfeng Liu. (2015) Cyclic thiourea functionalized dyes with binary π-linkers: Influence of different π-conjugation segments on the performance of dye-sensitized solar cells. DYES AND PIGMENTS, [PMID:] [10.1016/j.dyepig.2015.01.022] |
| 6. Shanxin Xiong, Huanyu Tan, Jiaxue Hou, Shengyu Wang, Yukun Zhang, Xicheng Lu, Chunxia Hua, Jia Chu, Ming Gong. (2025) Infrared Electrochromic Properties Regulation of Poly(thieno[3,2-b]thiophene) Porous Films Prepared by Electrodeposition. ACS Applied Polymer Materials, [PMID:] [10.1021/acsapm.5c03354] |