Ethyl 2-chloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine-4-carboxylate CAS 1660116-32-4
| CAS No. | 1660116-32-4 |
| Molecular Formula | C10H11ClN2O2 |
| Molecular Weight | 226.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Ethyl 2-chloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine-4-carboxylate (CAS 1660116-32-4), a certified reference material (molecular formula C10H11ClN2O2, MW 226.66 g/mol) for analytical method development and quality control.
Based on its molecular formula C10H11ClN2O2, Ethyl 2-chloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine-4-carboxylate 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 226.66 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C10H11ClN2O2 |
| Molecular Weight | 226.66 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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- 1-(5-Chloro-2-methoxyphenyl)cyclopropane-1-carboxylic acid (CAS 1039952-36-7)
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Recommended Standards
- 3-(3-Chloro-4,5-dimethoxyphenyl)acrylaldehyde (CAS 1563264-13-0)
- 2-Chloro-8-methyl-3-nitro-5,6,7,8-tetrahydroquinoline (CAS 1706443-35-7)
- 3-(2-Chloro-3,4-dimethoxyphenyl)acrylaldehyde (CAS 1562163-31-8)
- 2-Chloro-6-methyl-3-nitro-5,6,7,8-tetrahydroquinoline (CAS 1706449-95-7)
- [1,1'-Biphenyl]-2,3,4-triol (CAS 3934-76-7)
- (S)-1-(2-Methyl-3-(trifluoromethyl)phenyl)ethanamine (CAS 1212957-33-9)
- (S)-3-Amino-4-(3-bromophenyl)butanoic acid (CAS 1335573-36-8)
- 6,6-Dimethylpiperidin-2-one (CAS 139524-56-4)
- 3-cyclohexyl-2-oxopropanoic acid (CAS 5962-91-4)
- 1-(2-Chloropyridin-4-yl)-3-cyclohexylpropan-1-one (CAS 898785-45-0)
- 4-Hydroxy-4-(5-pyrimidinyl)cyclohexanone (CAS 708274-26-4)
- Tert-butyl (2s,4s)-2-(aminomethyl)-4-hydroxypyrrolidine-1-carboxylate (CAS 1932312-22-5)
- Ethyl 6-chloro-2-methyl-4-oxo-1,4-dihydroquinoline-3-carboxylate (CAS 120420-51-1)
- Semaglutide Impurity 13 (CAS CATO-C4X-222613)
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