Thieno[2,3-b]thiophene-2,5-dicarbaldehyde CAS 41784-82-1
| CAS No. | 41784-82-1 |
| Molecular Formula | C8H4O2S2 |
| Molecular Weight | 196.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Thieno[2,3-b]thiophene-2,5-dicarbaldehyde meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Thieno[2,3-b]thiophene-2,5-dicarbaldehyde (CAS 41784-82-1), molecular formula C8H4O2S2 and molecular weight 196.25 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Thieno[2,3-b]thiophene-2,5-dicarbaldehyde (C8H4O2S2) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H4O2S2 |
| Molecular Weight | 196.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Sulfur Atoms | 2 |
Related Thieno Standards
- THieno[3,2-d]pyrimidine, 2,4-dimethoxy- (CAS 16229-02-0)
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- 2-(Thieno[2,3-d]pyrimidin-4-ylamino)ethanol (CAS 18734-91-3)
- Thieno[3,4-b]thiophen-2-yl acetate (CAS 1823323-50-7)
- Methyl thieno[2,3-b]thiophene-2-carboxylate (CAS 20969-37-3)
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- Thieno[3,2-b]thiophene-2-carbohydrazide (CAS 685114-87-8)
- Methyl thieno[3,2-d]pyrimidine-7-carboxylate (CAS 1356017-03-2)
Recommended Standards
- tert-Butyl 4-amino-1-methyl-1H-pyrrole-2-carboxylate (CAS 335059-71-7)
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- tert-butyl 3-cyano-3-methylazetidine-1-carboxylate (CAS 936850-09-8)
- 3530-82-3 5-Benzylhydantoin 5-(Phenylmethyl)imidazolidine-2,4-dione EINECS 222-563-3 NSC 30459 NSC 50842 (CAS 3530-82-3)
- tert-Butyl 4-(4-bromophenyl)-4-cyanopiperidine-1-carboxylate (CAS 847615-14-9)
- 4-((2-Methylcyclobutyl)methoxy)benzaldehyde (CAS 1707402-97-8)
- 2-(tert-Butyl)-3-cyclopropoxy-6-fluoropyridine (CAS 1243311-04-7)
- 3-((4-(Trifluoromethyl)pyrimidin-2-yl)oxy)benzoic acid (CAS 1215846-99-3)
- 40039-93-8 Phenol, 4,4'-(1-methylethylidene)bis(2,6-dibromo-, polymer with 2-(chloromethyl)oxirane Phenol, 4,4'-(1-methylethylidene)bis(2,6-dibromo-, polymer with (chloromethyl)oxirane 2,2',6,6'-Tetrabromo-4,4'-isopropylidenediphenol, oligomeric reaction products with 1-Chloro-2,3-epoxypropane Chloromethyloxirane, polymer with 4,4'-(1-methylethylidene)bis(2,6-dibromophenol) 4,4'-(1-Methylethylidene)bis(2,6-dibromophenol), (chloromethyl)oxirane polymer 4,4'-(1-Methylethylidene)bis(2,6-dibromophenol), epichlorohydrin polymer 3,5,3',5'-Tetrabromobisphenol A, epichlorohydrin polymer EC 500-107-7 (CAS 40039-93-8)
- 5-Chloro-1H-pyrrolo[2,3-b]pyridin-6-amine (CAS 1190315-30-0)
- 2-(5-Amino-2-bromophenyl)propan-2-ol (CAS 2788844-69-7)
- 5-(Piperidin-2-yl)-3-(p-tolyl)-1,2,4-oxadiazole hydrochloride (CAS 1036556-56-5)
- H-Phe-Gly-Phe-Gly-OH (CAS 59005-83-3)
- [D-His]-Semaglutide B (x TFA Salt) (CAS CATO-C4X-2226117)
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