Determine the necessary mass, volume, or concentration for preparing a solution.
≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Store at 2-8°C,Argon charged Ships Wet ice 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 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
3,4-Diaminothiophene Dihydrochloride is a synthetic intermediate for organic electronics materials such as Arylenediimide-thiophene Derivatives for Organic n-channel field-effect transistors. They are also integral to the synthesis of thienopyrazine-based materials as low band gap materials for Organic Photovoltaic applications and as copolymer units for sensor applications.
application:
3,4-Diaminothiophene dihydrochloride can be used in the synthesis of thieno[3,4-b]pyrazine for thermoelectric applications. It can also be used in the synthesis of acenaphtho[1,2-b]thieno[3,4-e]pyrazine based acceptor molecules for the fabrication of organic transistors.
| Pubchem Sid | 504767211 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/504767211 |
| Canonical Smiles | C1=C(C(=CS1)N)N.Cl.Cl |
| IUPAC Name | thiophene-3,4-diamine;dihydrochloride |
| InChIKey | RAMOMCXNLLLICQ-UHFFFAOYSA-N |
| INCHI | 1S/C4H6N2S.2ClH/c5-3-1-7-2-4(3)6;;/h1-2H,5-6H2;2*1H |
| Isomeric SMILES | C1=C(C(=CS1)N)N.Cl.Cl |
| Alternate CAS | 78637-85-1 |
| Molecular Weight | 187.09 |
| Reaxy-Rn | 5100955 |
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 | Thiophenes |
| Subclass | Aminothiophenes |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Aminothiophenes |
| Alternative Parents | Heteroaromatic compounds Primary amines Hydrochlorides Hydrocarbon derivatives |
| Molecular Framework | Aromatic heteromonocyclic compounds |
| Substituents | Aminothiophene - Heteroaromatic compound - Organic nitrogen compound - Hydrocarbon derivative - Hydrochloride - Primary amine - Organonitrogen compound - Amine - Aromatic heteromonocyclic compound |
| Description | This compound belongs to the class of organic compounds known as aminothiophenes. These are organic compounds containing an amino group attached to a thiophene ring. |
| 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 | Oct 13, 2025 | D123869 | |
| Certificate of Analysis | Oct 13, 2025 | D123869 | |
| Certificate of Analysis | Oct 13, 2025 | D123869 | |
| Certificate of Analysis | Oct 13, 2025 | D123869 | |
| Certificate of Analysis | Jan 13, 2025 | D123869 | |
| Certificate of Analysis | Jul 29, 2022 | D123869 | |
| Certificate of Analysis | Jul 29, 2022 | D123869 | |
| Certificate of Analysis | Jul 29, 2022 | D123869 |
| Sensitivity | Air sensitive ;Heat sensitive |
|---|---|
| Molecular Weight | 187.090 g/mol |
| XLogP3 | |
| Hydrogen Bond Donor Count | 4 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 0 |
| Exact Mass | 185.979 Da |
| Monoisotopic Mass | 185.979 Da |
| Topological Polar Surface Area | 80.300 Ų |
| Heavy Atom Count | 9 |
| Formal Charge | 0 |
| Complexity | 58.700 |
| 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 | 3 |