N,N-Diethyl-2,6-dimethoxy-5-(methylthio)pyrimidin-4-amine CAS 89587-80-4
| CAS No. | 89587-80-4 |
| Molecular Formula | C11H19N3O2S |
| Molecular Weight | 257.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 257.35 g/mol gives N,N-Diethyl-2,6-dimethoxy-5-(methylthio)pyrimidin-4-amine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
N,N-Diethyl-2,6-dimethoxy-5-(methylthio)pyrimidin-4-amine (CAS 89587-80-4) is a high-purity analytical reference standard with the molecular formula C11H19N3O2S and a molecular weight of 257.35 g/mol.
N,N-Diethyl-2,6-dimethoxy-5-(methylthio)pyrimidin-4-amine (C11H19N3O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; 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.
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 | C11H19N3O2S |
| Molecular Weight | 257.35 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
- N,N-Bis(2-aminoethyl)-4-methylbenzenesulfonamide (CAS 23539-15-3)
- N,N-dimethyl-4,5-dihydronaphtho[1,2-b]thiophene-2-carboxamide (CAS 320424-04-2)
- N-(sec-Butyl)-2-methoxy-5-methylbenzenesulfonamide (CAS 870540-53-7)
- N-{4-[(4-methylphenyl)sulfanyl]phenyl}acetamide (CAS 339096-10-5)
- 3-(Benzo[d]oxazol-2-ylthio)-1,1,1-trifluoropropan-2-ol (CAS 1406266-57-6)
- 3-Chloro-5,6-dihydro-7H-cyclopenta[c]pyridin-7-one (CAS 1789728-01-3)
- 1,2-Bis(phenylphosphino)ethane, min. 95% (10wt% in hexanes) (CAS 18899-64-4)
- N-(2-hydrazinyl-2-oxoethyl)-N-methylbenzenesulfonamide (CAS 543694-17-3)
- 4-Bromo-2-iodothiazole (CAS 108306-56-5)
- Benzeneacetic acid, alpha,3-dimethyl-, methyl ester (CAS 172508-41-7)
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- 1,3-Dioxoisoindolin-2-yl 2-ethoxybenzoate (CAS 701260-69-7)
- RGD-targeted Proapoptotic Peptide trifluoroacetate salt (CAS 2243207-09-0)
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