5-Methyl-1-propylpyrimidine-2,4(1H,3H)-dione CAS 22919-49-9
| CAS No. | 22919-49-9 |
| Molecular Formula | C8H12N2O2 |
| Molecular Weight | 168.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-Methyl-1-propylpyrimidine-2,4(1H,3H)-dione 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.
5-Methyl-1-propylpyrimidine-2,4(1H,3H)-dione (CAS 22919-49-9), molecular formula C8H12N2O2 and molecular weight 168.19 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 5-Methyl-1-propylpyrimidine-2,4(1H,3H)-dione is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 168.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C8H12N2O2 |
| Molecular Weight | 168.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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.) | 1963 |
| Nitrogen Atoms | 2 |
Related Methyl Standards
- 6-Methyl-5-propylpyrimidine-2,4(1H,3H)-dione (CAS 102613-26-3)
- 2-Propylpyrimidine-4-carboxylic acid (CAS 1092299-46-1)
- 4-Propylpyrimidine-5-carboxylic acid (CAS 1250812-18-0)
- 2-Propylpyrimidine-5-carboxylic acid (CAS 72790-17-1)
- 5-Propylpyrimidine-2-carboxylic acid (CAS 72790-08-0)
- 2-Methyl-4-propylpyrimidine-5-carboxylic acid (CAS 127958-07-0)
- 4-Methyl-2-propylpyrimidine-5-carboxylic acid (CAS 1281830-90-7)
- 5-Propylpyrimidine-2-thiol (CAS 52767-84-7)
Recommended Standards
- 5-Methyl-1-propyl-1H-pyrazole-4-carboxylic acid (CAS 705270-06-0)
- 5-methyl-2-prop-2-ynyl-pyrazole-3-carboxylic acid (CAS 2630929-76-7)
- 5-Methyl-1-propyl-1H-pyrazole-3-carboxylic acid (CAS 956950-99-5)
- 5-methyl-5-(1-methylcyclopropyl)imidazolidine-2,4-dione (CAS 21231-74-3)
- 4-Chloro-5,8-dimethylquinoline-2-carboxylic acid (CAS 887589-47-1)
- Sodium Bis(fluorosulfonyl)imide (CAS 100669-96-3)
- 2-Bromo-5-(trifluoromethoxy)pyrimidine (CAS 2445214-64-0)
- (2-(Phenylsulfonyl)phenyl)methanamine (CAS 765212-81-5)
- 5-Amino-4-fluoro-2-methylbenzonitrile (CAS 1824053-65-7)
- 4-Chloro-6-isopropyl-2-(pyridin-2-yl)pyrimidine (CAS 1153412-93-1)
- 6-(Dimethoxymethyl)-1,3-dimethylpyrimidine-2,4(1H,3H)-dione (CAS 134924-81-5)
- Dapoxetine Hydrochloride (CAS 129938-20-1)
- Ethyl 3-iodo-2,2-dimethylpropanoate (CAS 1013116-55-6)
- Tetrapeptide-3 (CAS 827306-97-8)
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