4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid CAS 7712-05-2
| CAS No. | 7712-05-2 |
| Molecular Formula | C7H6O2S2 |
| Molecular Weight | 186.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid (CAS 7712-05-2) is a high-purity analytical reference standard with the molecular formula C7H6O2S2 and a molecular weight of 186.25 g/mol.
4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid (C7H6O2S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO manufactures 4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H6O2S2 |
| Molecular Weight | 186.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Sulfur Atoms | 2 |
Related Dihydrothieno Standards
- 2,3-Dihydrothieno[3,4-b][1,4]dioxine-2-carboxylic acid (CAS 955373-67-8)
- (2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)boronic acid (CAS 1116093-39-0)
- 1-(2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)-N-methylmethanamine (CAS 859851-03-9)
- 1,3-Dihydrothieno[3,4-b]quinoxaline (CAS 3138-80-5)
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- 1-(2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)ethan-1-one (CAS 250726-91-1)
- 4-Methyl-6,7-dihydrothieno[3,2-c]pyridine-5(4H)-carbaldehyde (CAS 1254344-25-6)
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Recommended Standards
- 4-(Tetrahydrofuran-2-yl)butyl acetate (CAS 5462-48-6)
- 4,7-dimethoxy-1H-pyrrolo[2,3-c]pyridine (CAS 452296-79-6)
- 4-(Pyrrolidin-1-ylmethyl)benzonitrile hydrochloride (CAS 78064-96-7)
- 4-Amino-1-isopropyl-4-piperidinecarboxylic acid (CAS 933760-73-7)
- n-(6-Amino-1-isobutyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)-N-isobutyl-2-(methylamino)acetamide (CAS 746607-52-3)
- 2-(2-Aminophenyl)thiazole-4-carbaldehyde (CAS 885279-31-2)
- 3-(1,3,6-Trimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)propanoic acid (CAS 1170439-70-9)
- 3-Ethylpent-4-enoic acid (CAS 14035-71-3)
- 1-(2'-Chloro-1,2,3,4-tetrahydro-[2,3'-biquinolin]-4-yl)pyrrolidin-2-one (CAS 895521-61-6)
- N-(4-Methylthiazol-2-yl)cyclopropanecarboxamide (CAS 354547-70-9)
- Clenbuterol-D9 Hydrochloride (CAS 184006-60-8)
- N-benzyl-4,6-dichloro-N-methylpyrimidin-2-amine (CAS 1289029-54-4)
- 2-(4-(2-(Benzyloxy)acetyl)piperazin-1-yl)benzonitrile (CAS 1242443-29-3)
- Tirzepatide Impurity 1 (CAS 2460751-66-8)
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