6-Methoxypyrimidine-4,5-diamine CAS 73318-76-0
| CAS No. | 73318-76-0 |
| Molecular Formula | C5H8N4O |
| Molecular Weight | 140.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 6-Methoxypyrimidine-4,5-diamine is closely related to an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 6-Methoxypyrimidine-4,5-diamine (CAS 73318-76-0), a certified reference material (molecular formula C5H8N4O, MW 140.14 g/mol) for analytical method development and quality control.
6-Methoxypyrimidine-4,5-diamine (C5H8N4O) contains an amide group, a hydroxyl group, an ether linkage. 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).
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 | C5H8N4O |
| Molecular Weight | 140.14 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 4 |
Related Methoxypyrimidine Standards
- 5-Methoxypyrimidine-2,4-diamine (CAS 18588-48-2)
- 2-Methoxypyrimidine-4,6-diamine (CAS 856595-47-6)
- 4-Methoxypyrimidine-2-methanamine (CAS 909563-18-4)
- 2-methoxypyrimidine-5-carbonitrile (CAS 38373-47-6)
- 4-methoxypyrimidine-2-carbonitrile (CAS 94789-37-4)
- 5-methoxypyrimidine-2-carbonitrile (CAS 87362-32-1)
- 5-Ethyl-2-methoxypyrimidine (CAS 156419-94-2)
- 5-Ethyl-4-methoxypyrimidine (CAS 53967-69-4)
Recommended Standards
- 6-Methoxy-2-methylpyridazin-3(2H)-one (CAS 7154-81-6)
- 6-Methyl-5-(methylamino)-2H-1,2,4-triazin-3-one (CAS 515116-36-6)
- 6-Methoxy-1-methylpyrimidin-2(1H)-one (CAS 507472-97-1)
- 6-Oxospiro[2.3]hexane-4-carboxylic acid (CAS 2839138-43-9)
- 865-33-8 A841711 sodium 2-[[(1S,2S,3aR,9aR)-2-hydroxy-1-[(3R)-3-hydroxyoctyl]-2,3,3a,4,9,9a-hexahydro-1H-cyclopenta[g]naphthalen-5-yl]oxy]acetate sodium 2-[[(1S,2S,3aR,9aR)-2-oxidanyl-1-[(3R)-3-oxidanyloctyl]-2,3,3a,4,9,9a-hexahydro-1H-cyclopenta[g]naphthalen-5-yl]oxy]ethanoate (CAS 865-33-8)
- (2-((2-Fluorobenzyl)thio)-4,5-dihydro-1H-imidazol-1-yl)(m-tolyl)methanone (CAS 851806-71-8)
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- 2H-Oxazolo[4,5-f]isoindole (CAS 42394-83-2)
- {[5-(4-fluorophenyl)thiophen-2-yl]methyl}(propan-2-yl)amine (CAS 1095140-49-0)
- (5Z)-5-{[3-(4-cyclohexylphenyl)-1-phenyl-1H-pyrazol-4-yl]methylidene}-2-(methylsulfanyl)-4,5-dihydro-1,3-thiazol-4-one (CAS 956798-41-7)
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- Velpatasvir Impurity 6 (CAS CATO-C4X-28946)
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