4-Chloro-2-cyclopropyl-6,7-dihydro-5h-cyclopenta[4,5]thieno[2,3-d]pyrimidine CAS 1019325-46-2
| CAS No. | 1019325-46-2 |
| Molecular Formula | C12H11ClN2S |
| Molecular Weight | 250.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Chloro-2-cyclopropyl-6,7-dihydro-5h-cyclopenta[4,5]thieno[2,3-d]pyrimidine (CAS 1019325-46-2) is a high-purity analytical reference standard with the molecular formula C12H11ClN2S and a molecular weight of 250.75 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution, 4-Chloro-2-cyclopropyl-6,7-dihydro-5h-cyclopenta[4,5]thieno[2,3-d]pyrimidine is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 250.75 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures 4-Chloro-2-cyclopropyl-6,7-dihydro-5h-cyclopenta[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 | C12H11ClN2S |
| Molecular Weight | 250.75 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 4-Benzyl-5-chloro-2-(methylthio)pyrimidine (CAS 118506-86-8)
- 1-(2-Chloro-5-methylthiophen-3-yl)-2-phenylethanone (CAS 1823392-42-2)
- 6-Chloro-2-(piperazin-1-ylmethyl)imidazo[1,2-a]pyridine (CAS 1094682-46-8)
- 4-Chloro-6-methyl-2-(piperidin-1-yl)-7H-pyrrolo[2,3-d]pyrimidine (CAS 1263213-88-2)
- 4-{6-chloro-2-methyl-3H-imidazo[4,5-b]pyridin-3-yl}piperidine (CAS 1266768-94-8)
- 4-Chloro-2-(1-pentyl-1H-pyrazol-4-yl)pyrimidine (CAS 1365941-97-4)
- 4-Chloro-2-isobutyl-6-(1-methyl-1H-pyrazol-4-yl)pyrimidine (CAS 1707747-02-1)
- 4-Chloro-6-(1-pentyl-1H-pyrazol-4-yl)pyrimidine (CAS 1708199-17-0)
Recommended Standards
- (+)-Camphor-10-sulfonic acid chloride (+)-Camphor-10-sulfonyl chloride (1S)-(+)-10-Camphorsulfonyl chloride (1S)-(+)-Camphor-10-sulfonyl chloride (1S)-Camphor-10-sulfonic acid chloride 21286-54-4 (CAS 21286-54-4)
- 5-((2-Chlorobenzyl)thio)pyridin-2-amine (CAS 1095503-57-3)
- rel-((1R,4R)-7,7-Dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonyl chloride (CAS 2090997-88-7)
- ethyl 2-chlorothieno[3,2-d]pyrimidine-4-carboxylate (CAS 1135299-23-8)
- 1-Benzylpiperidine-2-carbothioamide (CAS 1480771-03-6)
- 5-bromobenzofuran-7-carboxylic acid (CAS 99517-39-2)
- Methyl 3-(3-(1-methyl-6-oxo-1,6-dihydropyridazin-3-yl)propanamido)thiophene-2-carboxylate (CAS 1797695-92-1)
- 4-[2-(4-Hydroxyphenyl)ethyl]phenyl 4-(nonyloxy)benzoate (CAS 133763-67-4)
- 1,7-Diazaspiro[4.5]decan-2-one (CAS 1158749-84-8)
- 3-Fluoro-L-tyrosine hydrochloride (CAS 909724-63-6)
- 2-(3-ethylazetidin-1-yl)acetic acid, trifluoroacetic acid (CAS 2031260-96-3)
- 3-((1H-1,2,4-triazol-5-yl)thio)propanoic acid (CAS 717849-18-8)
- 2,3-Dimethylthiomorpholine 1-oxide (CAS 1375964-41-2)
- Semaglutide Impurity 5 (CAS 23406-82-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com