1',5',6',7'-Tetrahydrospiro[cyclopentane-1,4'-cyclopenta[d]pyrimidine]-2'(3'H)-thione CAS 5778-25-6
| CAS No. | 5778-25-6 |
| Molecular Formula | C11H16N2S |
| Molecular Weight | 208.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1',5',6',7'-Tetrahydrospiro[cyclopentane-1,4'-cyclopenta[d]pyrimidine]-2'(3'H)-thione (CAS 5778-25-6), molecular formula C11H16N2S and molecular weight 208.32 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H16N2S, 1',5',6',7'-Tetrahydrospiro[cyclopentane-1,4'-cyclopenta[d]pyrimidine]-2'(3'H)-thione contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 208.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H16N2S |
| Molecular Weight | 208.32 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Tetrahydrospiro Standards
- 1'-Methyl-3,5,6,7-tetrahydrospiro[imidazo[4,5-c]pyridine-4,4'-piperidine] (CAS 65092-19-5)
- 1',5',6',7'-Tetrahydrospiro[cyclohexane-1,2'-cyclopenta[d]pyrimidin]-4'(3'H)-one (CAS 58996-10-4)
- 1'-Methyl-1',4',6',7'-tetrahydrospiro[cyclopropane-1,5'-indazole]-3'-carboxylic acid (CAS 2387600-79-3)
- 2',3',4',9'-Tetrahydrospiro[cyclobutane-1,1'-pyrido[3,4-b]indole] (CAS 1956332-31-2)
- 2,3,5,6-Tetrahydrospiro[pyran-4,3'-pyrrolo[3,2-b]pyridin]-2'(1'h)-one (CAS 2168852-75-1)
- 2',3',5',6'-Tetrahydrospiro[indoline-3,4'-pyran]-2-one (CAS 304876-29-7)
- 2',3',4',9'-Tetrahydrospiro[oxetane-3,1'-pyrido[3,4-b]indole] (CAS 1523558-63-5)
- 6,7,8,9-Tetrahydrospiro[benzo[7]annulene-5,3'-piperidine] (CAS 1342594-49-3)
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