Methyl cyclopenta-1,4-diene-1-carboxylate CAS 73223-48-0
| CAS No. | 73223-48-0 |
| Molecular Formula | C7H8O2 |
| Molecular Weight | 124.14 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 Methyl cyclopenta-1,4-diene-1-carboxylate.
Methyl cyclopenta-1,4-diene-1-carboxylate (CAS 73223-48-0), molecular formula C7H8O2 and molecular weight 124.14 g/mol, is a CATO reference standard with documented purity and traceability.
Methyl cyclopenta-1,4-diene-1-carboxylate (C7H8O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C7H8O2 |
| Molecular Weight | 124.14 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
Related Methyl Standards
- 1-(Cyclopenta-2,4-dien-1-yl)-N,N-dimethylmethanamine (CAS 172603-78-0)
- 1-cyclopenta-2,4-dien-1-ylidene-N,N-dimethyl-methanamine 2,4-Cyclopentadiene-.DELTA.1,.alpha.-methylamine, N,N-dimethyl- (8CI) 6-(Dimethylamino)fulvene 696-68-4 Methanamine, 1-(2,4-cyclopentadien-1-ylidene)-N,N-dimethyl- (9CI) NSC55886 (CAS 696-68-4)
- 1H-Cyclopenta[d]pyrimidine (CAS 270-95-1)
- 2H-Cyclopenta[d]pyrimidine (CAS 270-97-3)
- 4H-Cyclopenta[d]pyrimidine (CAS 270-96-2)
- 5H-Cyclopenta[d]pyrimidine (CAS 270-98-4)
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Recommended Standards
- Methyl 3-Cyclopropylpropiolate (CAS 80866-48-4)
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- tert-Butyl N-(4-chloro-3-formylpyridin-2-yl)carbamate (CAS 868736-42-9)
- 2-((4,5-Dichloro-1H-imidazol-1-yl)methyl)-1-methyl-1H-benzo[d]imidazole (CAS 332931-25-6)
- o,m,p-Isopropylphenyl Phenyl Phosphate Mixture (1:1:1) (CAS 68782-95-6)
- Aprepitant Impurity 76 (CAS CATO-C4X-114176)
- tert-Butyl (2-(hydroxymethyl)-5-(trifluoromethyl)phenyl)carbamate (CAS 530083-90-0)
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- Neuropeptide Y, porcine (CAS 82785-45-3)
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