Thieno[2,3-d]pyrimidine-4-thiol CAS 14080-55-8
| CAS No. | 14080-55-8 |
| Molecular Formula | C6H4N2S2 |
| Molecular Weight | 168.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C6H4N2S2, Thieno[2,3-d]pyrimidine-4-thiol contains a nitrile group, sulfur-containing functionality, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 168.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Thieno[2,3-d]pyrimidine-4-thiol (CAS 14080-55-8) is a high-purity analytical reference standard with the molecular formula C6H4N2S2 and a molecular weight of 168.24 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C6H4N2S2 |
| Molecular Weight | 168.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | 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.) | 1961 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Thieno Standards
- thieno[3,2-d]pyrimidine-4-thiol (CAS 16229-24-6)
- Thieno[2,3-b]thiophene-2-carbaldehyde (CAS 31486-85-8)
- Thieno[3,2-b]thiophene-2-carbaldehyde (CAS 31486-86-9)
- thieno[3,2-b]pyridine-6-carbonitrile (CAS 116538-95-5)
- thieno[2,3-b]pyridine-5-carbonitrile (CAS 21344-31-0)
- 1H-thieno[3,2-c]pyrazole-5-carboxylic acid (CAS 1313726-01-0)
- Thieno[3,2-b]furan-5-carboxylic acid (CAS 1334148-11-6)
- Thieno[2,3-b]pyrazine-2,3(1H,4H)-dione (CAS 149587-32-6)
Recommended Standards
- 2-Butyl-5,5-dimethyl-1,5-dihydro-4H-imidazol-4-one (CAS 138402-09-2)
- 3,9-Dimethyl-3,9-diazabicyclo[3.3.1]nonan-7-one (CAS 141549-84-0)
- Thiazole Impurity 1 (CAS 13816-21-2)
- 6,6-Dimethylhexahydropyrrolo[1,2-a]pyrazin-3(4H)-one (CAS 1416012-84-4)
- Benzyl (S)-3-(2-hydroxyethyl)piperidine-1-carboxylate (CAS 115909-90-5)
- 2,3-Dibromo-6-(difluoromethoxy)toluene (CAS 1806305-36-1)
- 4-((5-((4-Chlorophenyl)sulfonyl)furan-2-yl)imino)-2-methylbutan-2-yl hydrazinecarboxylate (CAS 75745-76-5)
- Sodium borohydride solution (CAS 16940-66-2)
- 4-(Trifluoromethyl)thiophene-3-sulfonyl chloride (CAS 1855675-37-4)
- 1-(5-Fluoro-2-hydroxyphenyl)-2-(triphenyl-lambda5-phosphanylidene)ethan-1-one (CAS 797054-15-0)
- 1-(Methyl-d3)-4-nitro-3-(2,2,3,3,3-D5-propyl)-1H-pyrazole-5-carboxylic Acid (CAS 1175993-00-6)
- 3-[[(8α,9S)-6'-Methoxycinchonan-9-yl]amino]-4-[[4-(trifluoromethyl)phenyl]amino]-3-cyclobutene-1,2-dione (CAS 1256245-85-8)
- Piperacillin Impurity 38 (CAS CATO-C4X-173238)
- ([D2]Gly4)-Cholecystokinin Octapeptide (sulfated) ammonium salt (CAS 1926163-74-7)
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