4-Iodothieno[2,3-d]pyrimidine CAS 18740-27-7
| CAS No. | 18740-27-7 |
| Molecular Formula | C6H3IN2S |
| Molecular Weight | 262.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Iodothieno[2,3-d]pyrimidine (CAS 18740-27-7), molecular formula C6H3IN2S and molecular weight 262.07 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, sulfur-containing functionality, iodine substitution, an aromatic ring system, 4-Iodothieno[2,3-d]pyrimidine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 262.07 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-Iodothieno[2,3-d]pyrimidine 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 | C6H3IN2S |
| Molecular Weight | 262.07 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Iodothieno Standards
- 4-Iodothieno[3,2-d]pyrimidine (CAS 1593776-54-5)
- 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)
- 2-Iodothieno[3,2-c]pyridine (CAS 94226-17-2)
- 3-Iodothieno[2,3-b]pyridine (CAS 53399-37-4)
Recommended Standards
- 6-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)oxazolo[4,5-b]pyridin-2(3H)-one (CAS 1802984-91-3)
- 2-Iodothiazolo[4,5-b]pyridine (CAS 1934452-27-3)
- naphtho[2,3-b]benzofuran-2-ylboronic acid (CAS 1627917-17-2)
- (3-((tert-Butoxycarbonyl)amino)-5-cyanophenyl)boronic acid (CAS 2399423-36-8)
- 2-hydroxy-5-(hydroxymethyl)benzoic acid (CAS 7437-20-9)
- 4-Bromo-1-(trifluoromethyl)-1H-imidazole (CAS 2253632-50-5)
- (3-Chloro-4-(morpholinomethyl)phenyl)boronic acid (CAS 1704080-60-3)
- 2-Amino-n-[1-(pyridin-3-yl)ethyl]hexanamide hydrochloride (CAS 1423023-82-8)
- {5-oxaspiro[2.4]heptan-1-yl}methanamine (CAS 1536988-52-9)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (5-(2-methyl-1H-imidazol-1-yl)furan-2-yl)boronate (CAS 2223042-27-9)
- 1-(3-Isopropyl-1-methyl-5-vinyl-1H-pyrazol-4-yl)-3-methylbutan-1-one (CAS 1956365-46-0)
- Ethyl (5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-3-yl)acetate (CAS 29211-44-7)
- 3-(2-fluorophenoxy)propanamide (CAS 1097829-72-5)
- Tirzepatide Impurity 9 (CAS CATO-C4X-32409)
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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