2-Methoxy-5-methylpyrimidin-4(3H)-one CAS 25902-91-4
| CAS No. | 25902-91-4 |
| Molecular Formula | C13H26N2O4 |
| Molecular Weight | 274.36 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.
2-Methoxy-5-methylpyrimidin-4(3H)-one (CAS 25902-91-4), molecular formula C13H26N2O4 and molecular weight 274.36 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, 2-Methoxy-5-methylpyrimidin-4(3H)-one is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 274.36 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.
As a certified reference material (CRM), 2-Methoxy-5-methylpyrimidin-4(3H)-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C13H26N2O4 |
| Molecular Weight | 274.36 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 | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1964 |
| Nitrogen Atoms | 2 |
Related Methoxy Standards
- 5-Methoxy-6-(2-(piperidin-1-yl)ethoxy)-1H-indole (CAS 399579-85-2)
- (5-Methoxy-1H-indol-3-yl)(piperidin-1-yl)methanethione (CAS 937604-38-1)
- 1-{4-methoxy-3-[(pyrimidin-2-ylsulfanyl)methyl]phenyl}ethan-1-one (CAS 733044-95-6)
- 2-Methoxy-6-(2-thiophen-2-yl-vinyl)-benzoic acid methyl ester (CAS 1171924-45-0)
- 4-Methoxy-N,N-diisopropyl Tryptamine (CAS 1135694-32-4)
- 5-Methoxy-N,N-dipropyltryptamine (CAS 69496-75-9)
- N-(2-(5-Methoxy-1H-indol-3-yl)ethyl)-3-oxobutanamide (CAS 112081-40-0)
- 4-Methoxy-3-[(3,4,5-trimethyl-1H-pyrazol-1-yl)-methyl]benzoic acid (CAS 1169970-27-7)
Recommended Standards
- 2-Mercapto-3-methyl-6-phenyl-3H-thieno[2,3-d]pyrimidin-4-one (CAS 851398-42-0)
- 3-(2-Methylphenyl)-2-sulfanylidene-1H,2H,3H,4H-thieno[3,2-d]pyrimidin-4-one (CAS 688354-32-7)
- 2-Butoxy-4-ethyl-1-methyl-4-phenyl-1H-imidazol-5(4H)-one (CAS 88700-36-1)
- 3-(3-Diethylaminomethyl-indol-1-yl)-propionic acid (CAS 879038-23-0)
- 2-(2-Chloro-5-(difluoromethyl)-3-fluoropyridin-4-yl)acetic acid (CAS 1805991-20-1)
- 1-Triethylsilyl-1-heptyne (CAS 1047660-72-9)
- n-(2-Fluorophenethyl)-2-methylbutan-1-amine (CAS 1038217-15-0)
- 2-methylthiophene-3-carbaldehyde (CAS 84815-20-3)
- 2-Chloro-4-ethyl-5-fluoro-6-methoxypyrimidine (CAS 1192479-51-8)
- Azacitidine Impurity 79 (CAS CATO-C4X-138879)
- Melphalan Isopropyl Ester (CAS 104874-57-9)
- 3-(2-Chloro-6-fluorophenoxy)azetidine (CAS 2228694-23-1)
- (S)-3-Chloro-2-hydroxypropanoic acid (CAS 82079-44-5)
- Insulin Degludec impurity 4 (CAS CATO-C4X-21574)
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