4-Chloro-6,7,8,9-tetrahydro-5H-cyclohepta[4,5]thieno[2,3-d]pyrimidine CAS 40106-58-9
| CAS No. | 40106-58-9 |
| Molecular Formula | C11H11ClN2S |
| Molecular Weight | 238.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-Chloro-6,7,8,9-tetrahydro-5H-cyclohepta[4,5]thieno[2,3-d]pyrimidine (CAS 40106-58-9), molecular formula C11H11ClN2S and molecular weight 238.74 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H11ClN2S, 4-Chloro-6,7,8,9-tetrahydro-5H-cyclohepta[4,5]thieno[2,3-d]pyrimidine contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 238.74 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.
CATO manufactures 4-Chloro-6,7,8,9-tetrahydro-5H-cyclohepta[4,5]thieno[2,3-d]pyrimidine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H11ClN2S |
| Molecular Weight | 238.74 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 5-(2-chloro-3-methylbenzyl)-1,3-thiazol-2-amine (CAS 1000931-88-3)
- 2-Chloro-4-methyl-N-(thiazol-5-ylmethyl)aniline (CAS 1339873-13-0)
- 4-Chloro-2-methyl-N-(thiazol-5-ylmethyl)aniline (CAS 1341170-78-2)
- 4-Chloro-2-cyclopropyl-6-ethylthieno[2,3-d]pyrimidine (CAS 1341276-10-5)
- 3-Chloro-2-methyl-N-(thiazol-5-ylmethyl)aniline (CAS 1342529-17-2)
- 5-Chloro-2-methyl-N-(thiazol-5-ylmethyl)aniline (CAS 1343815-55-3)
- 3-Chloro-4-methyl-N-(thiazol-5-ylmethyl)aniline (CAS 1343928-83-5)
- 4-Chloro-7-methyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidine (CAS 137438-23-4)
Recommended Standards
- 4-Chloro-2-methyl-5,6,7,8-tetrahydro-benzo[4,5]thieno[2,3-d]pyrimidine (CAS 81765-97-1)
- 4-Chloro-6-methyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidine (CAS 610279-55-5)
- 4-Chloro-2-ethyl-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine (CAS 307343-93-7)
- 5-(3-chloro-4-methylbenzyl)-1,3-thiazol-2-amine (CAS 501349-36-6)
- Methyl 5-fluoro-3-hydroxypicolinate (CAS 1256787-11-7)
- 2,4-Dichloro-N-(1,5,6-trimethyl-1H-benzo[d]imidazol-4-yl)benzenesulfonamide (CAS 338411-08-8)
- (3-Methoxy-1-methyl-1H-pyrazol-4-yl)methanol (CAS 875570-76-6)
- (3E)-3-{[4-(trifluoromethyl)phenyl]methylidene}-3,4-dihydro-2H-1-benzopyran-4-one (CAS 796862-19-6)
- 4-({[(9h-fluoren-9-yl)methoxy]carbonyl}amino)-3-hydroxybutanoic acid (CAS 184763-08-4)
- N-(2,4,5-Trimethoxybenzyl)cycloheptanamine (CAS 418778-25-3)
- 3-(2,4-Difluorophenyl)cyclobutan-1-one (CAS 1260161-42-9)
- 2,2-Dimethyltetrahydro-2H-thiopyran-4-amine hydrochloride (CAS 2007909-74-0)
- 2-Bromo-4-fluoro-3-methoxy-1-methylbenzene (CAS 1226808-62-3)
- Semaglutide impurity 199 (CAS CATO-C4X-2226199)
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