5H-Cyclopenta[d]pyrimidine CAS 270-98-4
| CAS No. | 270-98-4 |
| Molecular Formula | C7H6N2 |
| Molecular Weight | 118.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5H-Cyclopenta[d]pyrimidine is closely related to a nitrile group, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 5H-Cyclopenta[d]pyrimidine (CAS 270-98-4), a certified reference material (molecular formula C7H6N2, MW 118.14 g/mol) for analytical method development and quality control.
Structurally, 5H-Cyclopenta[d]pyrimidine (C7H6N2) contains a nitrile group, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 118.14 g/mol, it falls into the low-molecular-weight range. 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 | C7H6N2 |
| Molecular Weight | 118.14 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related H Standards
- 1H-Cyclopenta[d]pyrimidine (CAS 270-95-1)
- 2H-Cyclopenta[d]pyrimidine (CAS 270-97-3)
- 4H-Cyclopenta[d]pyrimidine (CAS 270-96-2)
- 1H-Cyclopenta[b]pyridine (CAS 270-88-2)
- 5H-Cyclopenta[b]pyridine (CAS 270-91-7)
- 5H-Cyclopenta[c]pyridine (CAS 270-60-0)
- 7H-Cyclopenta[b]pyridine (CAS 270-92-8)
- 4660-80-4 5-(3-cyclopenta-2,4-dien-1-ylpropyl)cyclopenta-1,3-diene; titanium(4+); dichloride 5-[3-(1-cyclopenta-2,4-dienyl)propyl]cyclopenta-1,3-diene; titanium(4+); dichloride A827085 (CAS 4660-80-4)
Recommended Standards
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