4-Aminothieno[2,3-d]pyrimidine CAS 14080-56-9
| CAS No. | 14080-56-9 |
| Molecular Formula | C6H5N3S |
| Molecular Weight | 151.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-Aminothieno[2,3-d]pyrimidine (CAS 14080-56-9), molecular formula C6H5N3S and molecular weight 151.19 g/mol, is a CATO reference standard with documented purity and traceability.
4-Aminothieno[2,3-d]pyrimidine (C6H5N3S) contains a nitrile group, sulfur-containing functionality, an aromatic ring system. Its physicochemical properties are representative of its class; 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).
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 | C6H5N3S |
| Molecular Weight | 151.19 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 | 3 |
| Sulfur Atoms | 1 |
Related Aminothieno Standards
- 4-Aminothieno[3,2-d]pyrimidine (CAS 16285-74-8)
- 2-Aminothieno[2,3-d]thiazole (CAS 40507-56-0)
- 2-Aminothieno[2,3-d]pyrimidin-4(1H)-one (CAS 1010068-13-9)
- 2-Aminothieno[3,2-d]pyrimidin-4(1H)-one (CAS 1203578-74-8)
- 2-Aminothieno[3,4-d]pyrimidin-4(3H)-one (CAS 1333168-07-2)
- 7-Aminothieno[3,2-d]pyrimidin-4(3H)-one (CAS 1383531-54-1)
- 4-Aminothieno[2,3-b]pyridine-5-carbonitrile (CAS 1086397-96-7)
- 5-aminothieno[3,2-b]pyridine-6-carbonitrile (CAS 60639-44-3)
Recommended Standards
- 5-(Thiophen-2-yl)-1,2-oxazole (CAS 138716-44-6)
- 3H,4H,7H-Imidazo[4,5-b]pyridine-7-thione (CAS 1421-25-6)
- 5-(Thiophen-3-yl)isoxazole (CAS 138716-30-0)
- Benzo[d]isothiazol-7-ol (CAS 147317-39-3)
- 2-[(4-chlorophenyl)methoxy]benzohydrazide (CAS 379255-73-9)
- benzyl 3-(methylamino)azetidine-1-carboxylate (CAS 1630907-35-5)
- 2-Amino-4,6-bis[benzyl(methyl)amino]pyrimidine-5-carbaldehyde (CAS 865660-52-2)
- Methyl (2S)-2-[(tert-butoxycarbonyl)amino]-3-(4-cyanophenyl)propanoate (CAS 298693-79-5)
- 1-(2,2,2-trifluoroacetyl)azetidine-3-carboxylic acid (CAS 1001026-41-0)
- Halobetasol Impurity 8 (CAS CATO-C4X-33148)
- (2s)-2-(Naphthalene-2-sulfonamido)-3-phenylpropanoic acid (CAS 55953-52-1)
- D13223 N6-β-D-Glucuronide (CAS 1147289-78-8)
- 3-(6-Chloropyridin-3-yl)propanoic acid hydrochloride (CAS 1427379-78-9)
- Liraglutide Sodium Salt (CAS 204656-20-2（free base）)
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