Dimethyl 1-(3-chloro-2-methylphenyl)-1H-pyrazole-3,4-dicarboxylate CAS 853349-12-9
| CAS No. | 853349-12-9 |
| Molecular Formula | C14H13ClN2O4 |
| Molecular Weight | 308.72 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 308.72 g/mol gives Dimethyl 1-(3-chloro-2-methylphenyl)-1H-pyrazole-3,4-dicarboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Dimethyl 1-(3-chloro-2-methylphenyl)-1H-pyrazole-3,4-dicarboxylate (CAS 853349-12-9), molecular formula C14H13ClN2O4 and molecular weight 308.72 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C14H13ClN2O4, Dimethyl 1-(3-chloro-2-methylphenyl)-1H-pyrazole-3,4-dicarboxylate contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 308.72 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C14H13ClN2O4 |
| Molecular Weight | 308.72 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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- 2-{2-[(2-chloro-4-fluorophenyl)methyl]-1,3-thiazol-4-yl}acetic acid (CAS 1110717-81-1)
- Methyl (S)-2-amino-3-(5-chlorothiophene-2-carboxamido)propanoate hydrochloride (CAS 1184298-30-3)
- Ethyl Benzoylformate-d5 (CAS 1025892-26-5)
- (2-(1H-Benzo[d]imidazol-2-yl)phenyl)methanol (CAS 1457-95-0)
- Ibutilide Impurity N1 (CAS 100632-59-5)
- 6-Bromo-2-(2-chlorophenyl)quinoline-4-carbonyl chloride (CAS 1160253-25-7)
- 4,7-Dihydroxy-3-(4-methoxyphenyl)-2h-chromen-2-one (CAS 42345-56-2)
- 1-(Tert-butyl) 2-methyl (2S,4S)-4-(3-bromophenoxy)pyrrolidine-1,2-dicarboxylate (CAS 2097754-90-8)
- Semaglutide impurity 331 (CAS CATO-C4X-2226231)
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