4-Methoxythieno[3,2-d]pyrimidine CAS 16228-99-2
| CAS No. | 16228-99-2 |
| Molecular Formula | C7H6N2OS |
| Molecular Weight | 166.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Methoxythieno[3,2-d]pyrimidine (C7H6N2OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 4-Methoxythieno[3,2-d]pyrimidine (CAS 16228-99-2), a certified reference material (molecular formula C7H6N2OS, MW 166.20 g/mol) for analytical method development and quality control.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C7H6N2OS |
| Molecular Weight | 166.20 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 | 1 |
Related Methoxythieno Standards
- 6-Methoxythieno[2,3-b]pyridine (CAS 99429-90-0)
- 7-Methoxythieno[3,2-b]pyridine (CAS 69626-86-4)
- 2-methoxythieno[3,2-d]pyrimidine (CAS 1259978-29-4)
- 6-Methoxythieno[3,2-b]pyridin-5(4H)-one (CAS 1228009-40-2)
- 2-Methoxythieno[3,2-d]pyrimidin-4-ol (CAS 676997-70-9)
- 3-Methoxythieno[3,4-b]pyridine-5,7-diamine (CAS 1071365-43-9)
- 7-Methoxythieno[3,4-c]pyridine-1,3-diamine (CAS 314033-46-0)
- 4-Methoxythieno[3,2-d]pyrimidine-7-carboxylic acid (CAS 2715124-08-4)
Recommended Standards
- 4-Amino-2-mercapto-6-methyl-pyrimidine-5-carbonitrile (CAS 160457-21-6)
- 4-Hydrazono-3,4-dihydrothieno[3,2-d]pyrimidine (CAS 16229-26-8)
- 6-Methyl-1H-pyrazolo[3,4-d]pyrimidine-4(5H)-thione (CAS 15986-11-5)
- Benzo[c][1,2,5]thiadiazol-4-ylmethanol (CAS 16406-00-1)
- N,N-Diethyl-6-methyl-3-phenyl-[1,2,3]triazolo[5,1-c][1,2,4]triazin-7-amine (CAS 64781-66-4)
- 3-((8-Chloro-4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoic acid (CAS 1174044-69-9)
- Methyl pyrimidine-2-carbimidate (CAS 57871-18-8)
- Tylosin Phosphate (CAS 1405-53-4)
- N-(2,4-Dimethoxyphenyl)-2-((4-ethyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 577981-98-7)
- 7-(Benzyloxy)-4-(trifluoromethyl)-2H-chromen-2-one (CAS 220001-53-6)
- 1-(3,5-Dichlorophenyl)cyclobutanecarbonitrile (CAS 1314648-87-7)
- N-((2-(Dimethylamino)pyrimidin-4-yl)methyl)-2,2-diphenylacetamide (CAS 1797722-11-2)
- 24936-41-2 Benzene, 1-ethenyl-4-methyl-, homopolymer 1-Ethenyl-4-methylbenzene homopolymer (CAS 24936-41-2)
- α Bag Cell Peptide (1-9) (CAS 87549-52-8)
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