Pyrimidine-4,6-dicarboxamide CAS 6345-42-2
| CAS No. | 6345-42-2 |
| Molecular Formula | C6H6N4O2 |
| Molecular Weight | 166.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Pyrimidine-4,6-dicarboxamide is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Pyrimidine-4,6-dicarboxamide (CAS 6345-42-2), molecular formula C6H6N4O2 and molecular weight 166.14 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, Pyrimidine-4,6-dicarboxamide is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 166.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C6H6N4O2 |
| Molecular Weight | 166.14 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 4 |
Related Pyrimidine Standards
- Pyrimidine,2-ethenyl-4,6-dimethoxy- (CAS 850234-80-9)
- Pyrimidine-2,5-dicarboxylic acid (CAS 127527-24-6)
- Pyrimidine-4,5-dicarboxylic acid (CAS 54001-63-7)
- 1,1'-(Pyrimidine-4,6-diyl)diethanone (CAS 210295-82-2)
- Pyrimidine-2,4,6-tricarbaldehyde (CAS 1209493-65-1)
- Pyrimidine-2-sulfonyl fluoride (CAS 35762-87-9)
- 34171-43-2 Pyrimidine, 2-chloro-4-(dimethylamino)-5-methyl- 5-25-10-00196 (Beilstein Handbook Reference) BRN 0608293 4-Pyrimidinamine, 2-chloro-N,N,5-trimethyl- (CAS 34171-43-2)
- Pyrimidine-2-sulfonic acid (CAS 34916-79-5)
Recommended Standards
- Pyridazine-4,5-dicarboxamide (CAS 98198-11-9)
- 56734-74-8 2-(trifluoromethyl)cyclohexanone DTXSID80380534 (CAS 56734-74-8)
- Pyrazine-2,5-dicarboxamide (CAS 41110-27-4)
- 4-(trifluoromethyl)-1-cyclohexanone 4-(trifluoromethyl)cyclohexan-1-one 75091-99-5 A838323 (CAS 75091-99-5)
- m-PEG6-Br (CAS 125562-29-0)
- 4-Fluoro-2-(prop-2-yn-1-yloxy)aniline hydrochloride (CAS 1354950-12-1)
- CAS 62-48-6 (CAS 62-48-6)
- 1-Bromohexane-d13 (CAS 130131-94-1)
- 2-Hydroxy-4-methylpyrimidine-5-carboxylic acid (CAS 13008-17-8)
- 2-((2S,3S)-4-(Anthracen-9-yl)-3-(tert-butyl)-2,3-dihydrobenzo[d][1,3]oxaphosphol-2-yl)pyridine (CAS 2565792-34-7)
- Trazodone Impurity 90 (CAS CATO-C4X-177290)
- 1-(3-Fluorophenyl)pentan-1-one (CAS 42916-68-7)
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