Diethyl 2-phenylpyrimidine-4,5-dicarboxylate CAS 33299-33-1
| CAS No. | 33299-33-1 |
| Molecular Formula | C16H16N2O4 |
| Molecular Weight | 300.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Diethyl 2-phenylpyrimidine-4,5-dicarboxylate.
Diethyl 2-phenylpyrimidine-4,5-dicarboxylate (CAS 33299-33-1), molecular formula C16H16N2O4 and molecular weight 300.31 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Diethyl 2-phenylpyrimidine-4,5-dicarboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 300.31 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.
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 | C16H16N2O4 |
| Molecular Weight | 300.31 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 2 |
Related Diethyl Standards
- Diethyl [2,2'-bipyridine]-3,3'-dicarboxylate (CAS 1762-36-3)
- Diethyl 2,2'-Bipyridine-5,5'-dicarboxylate, 97% (CAS 1762-46-5)
- Diethyl 2,2’-Bipyridine-6,6’-dicarboxylate (CAS 65739-40-4)
- diethyl 5-methoxypyrazolo[1,5-a]pyridine-2,3-dicarboxylate (CAS 2741634-29-5)
- Diethyl (1,1-difluoro-2-hydroxy-2-(thiophen-2-yl)ethyl)phosphonate (CAS 83567-97-9)
- Diethyl tridecanedioate (CAS 15423-05-9)
- Diethyl 3-bromophthalate (CAS 127413-58-5)
- Diethyl 5-Bromoisophthalate (CAS 127437-29-0)
Recommended Standards
- 2',6'-Dihydroxy 4',4-dimethoxychalcone (CAS 94441-99-3)
- Butanoic acid, 4-[[(1,1-dimethylethoxy)carbonyl]amino]-, 2,5-dioxo-1-pyrrolidinyl ester (CAS 69038-04-6)
- Ethyl 2-amino-1-(2-hydroxyethyl)-1h-pyrrolo[2,3-b]quinoxaline-3-carboxylate (CAS 30119-32-5)
- Bcl-2 Inhibitor (CAS 383860-03-5)
- Tris(triisopropylphosphine)platinum (CAS 60648-72-8)
- 2,5-Bis((2,5,8,11-tetraoxatridecan-13-yl)oxy)terephthalohydrazide (CAS 2760302-99-4)
- Methyl 5-(2-Bromoacetyl)thiophene-2-carboxylate (CAS 4192-32-9)
- 17-O-Acetyl-3-O-methyl 17β-Estradiol (CAS 5976-55-6)
- 3-Hydroxy-7-phenylthieno[3,2-d]pyrimidine-2,4(1H,3H)-dione (CAS 824983-83-7)
- 1,2-Dimethylpiperidine HCl (CAS 671-36-3（free base）)
- 4-Allyl-5-(5-propylthien-3-yl)-4H-1,2,4-triazole-3-thiol (CAS 522598-13-6)
- 2-(4-Isopropoxy-3-methoxyphenyl)-1H-imidazo[4,5-b]phenazine (CAS 114991-93-4)
- tert-Butyl 4-(3-oxobutanoyl)piperazine-1-carboxylate, 97% (CAS 401566-77-6)
- D-Ile17-Tirzepatide (CAS CATO-CPTD788917)
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