3-(Phenylamino)-3H,4H-thieno[3,2-d]pyrimidin-4-one CAS 338750-82-6
| CAS No. | 338750-82-6 |
| Molecular Formula | C12H9N3OS |
| Molecular Weight | 243.28 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.
3-(Phenylamino)-3H,4H-thieno[3,2-d]pyrimidin-4-one (CAS 338750-82-6), molecular formula C12H9N3OS and molecular weight 243.28 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 3-(Phenylamino)-3H,4H-thieno[3,2-d]pyrimidin-4-one is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 243.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C12H9N3OS |
| Molecular Weight | 243.28 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Phenylamino Standards
- 2-[4-(phenylamino)phenoxy]acetic acid (CAS 643753-17-7)
- Ethyl 2-(phenylamino)pyrimidine-5-carboxylate (CAS 864172-93-0)
- Ethyl 2-(Phenylamino)nicotinate (CAS 115891-18-4)
- Methyl 6-((phenylamino)methyl)nicotinate (CAS 1518522-59-2)
- 2-(Phenylamino)-3a,4,7,7a-tetrahydro-1h-isoindole-1,3(2h)-dione (CAS 61152-63-4)
- 6-Methyl-3-(phenylamino)-[1,2,4]triazolo[3,4-c][1,2,4]triazin-5(1H)-one (CAS 1203148-43-9)
- Ethyl 3-(phenylamino)benzoate (CAS 1369265-53-1)
- 1-Methyl-3-(4-(phenylamino)phenyl)urea (CAS 22325-88-8)
Recommended Standards
- 3-(N-propylsulfamoyl)benzoic acid (CAS 7326-75-2)
- 3-(Propane-1-sulfonamido)benzoic acid (CAS 849409-82-1)
- 3-(N-Ethylmethylsulfonamido)benzoic acid (CAS 89469-47-6)
- 3-(Toluene-4-sulfonylamino)-propionic acid (CAS 42908-33-8)
- 2-Bromo-1-(2-fluoropyridin-3-yl)ethanone hydrobromide (CAS 1138033-53-0)
- 3-Chloro-6-methylbenzo[b]thiophene-2-carboxamide (CAS 34586-87-3)
- 8-Bromoisoquinoline-3-carboxylic acid (CAS 1823577-48-5)
- (S)-2-amino-2-(2-(trifluoromethyl)phenyl)ethan-1-ol (CAS 1212879-34-9)
- 63675-71-8 Piperidine, 4,4-diphenyl-, hydrochloride 4,4-Diphenylpiperidine hydrochloride (CAS 63675-71-8)
- TCD monomer [Tetracyclo[6.2.1.13,6.02,7]dodec-4-ene] (CAS 21635-90-5)
- 3-Benzyloxypropionaldehyde, 97% (CAS 19790-60-4)
- 2-(Aminomethyl)-6-azaindole (CAS 867140-61-2)
- 3-Hydroxy-2-methylbutanoic Acid Ethyl Ester(Mixture of Diastereomers) (CAS 27372-03-8)
- C-Peptide 2 (rat) (CAS 41594-08-5)
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