2-Iodothieno[2,3-b]thiophene CAS 53020-10-3
| CAS No. | 53020-10-3 |
| Molecular Formula | C6H3IS2 |
| Molecular Weight | 266.12 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.
CATO supplies 2-Iodothieno[2,3-b]thiophene (CAS 53020-10-3), a certified reference material (molecular formula C6H3IS2, MW 266.12 g/mol) for analytical method development and quality control.
Owing to sulfur-containing functionality, iodine substitution, an aromatic ring system, 2-Iodothieno[2,3-b]thiophene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 266.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6H3IS2 |
| Molecular Weight | 266.12 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| 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.) | 1972 |
| Halogen Content | I-containing |
| Sulfur Atoms | 2 |
Related Iodothieno Standards
- 2-Iodothieno[3,2-b]thiophene (CAS 183308-96-5)
- 4-Iodothieno[3,2-d]pyrimidine (CAS 1593776-54-5)
- 4-Iodothieno[2,3-d]pyrimidine (CAS 18740-27-7)
- 6-Iodothieno[3,2-d]pyrimidine (CAS 853681-15-9)
- 7-Iodothieno[3,2-b]pyridine (CAS 1057670-32-2)
- 2-Iodothieno[2,3-c]pyridine (CAS 1823914-47-1)
- 2-Iodothieno[2,3-b]pyridine (CAS 1823930-57-9)
- 2-Iodothieno[3,2-b]pyridine (CAS 94191-17-0)
Recommended Standards
- 2-Chloro-N-(4-chlorophenyl)benzamide (CAS 319-39-1)
- 3-Chloro-N-(4-chlorophenyl)benzamide (CAS 54979-73-6)
- 2-Chloro-N-(3-chlorophenyl)benzamide (CAS 2447-89-4)
- 3-iodo-5,5-dimethyl-4,6-dihydropyrrolo[1,2-b]pyrazole (CAS 2057508-07-1)
- Fmoc-Ser(O-(2-chlorophenyl))-OH (CAS 1401662-79-0)
- Boc-Homoarg(Et)?-OH (symmetrical) (CAS 122532-94-9)
- 4-Chloro-6-(1-ethyl-3-methyl-1H-pyrazol-5-yl)-2-(1-methoxyethyl)pyrimidine (CAS 1708437-44-8)
- (7-Chloro-1H-indol-2-yl)methanol (CAS 53590-62-8)
- 2-[3,6-dicyclopropyl-4-(difluoromethyl)-1h-pyrazolo[3,4-b]pyridin-1-yl]acetic acid (CAS 937607-23-3)
- (E)-3-(3-methoxyphenyl)-2-methylacrylic acid (CAS 849831-37-4)
- 3-Nitro-4-(trifluoromethoxy)phenol (CAS 1214332-23-6)
- 2-(Trimethylsilyl)ethyl 4-(3-(aminomethyl)phenyl)piperidine-1-carboxylate hydrochloride (CAS 725228-56-8)
- 2-(5-Amino-6-methylpyridin-3-yl)acetonitrile (CAS 1805130-28-2)
- Akt/SKG Substrate Peptide (CAS 276680-69-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com