2-((2-(3-Chloro-4-ethoxyphenyl)pyrazolo[1,5-a]pyrazin-4-yl)thio)acetonitrile CAS 1105240-44-5
| CAS No. | 1105240-44-5 |
| Molecular Formula | C16H13ClN4OS |
| Molecular Weight | 344.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-((2-(3-Chloro-4-ethoxyphenyl)pyrazolo[1,5-a]pyrazin-4-yl)thio)acetonitrile (C16H13ClN4OS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 344.82 g/mol, it falls into the moderately-high-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).
2-((2-(3-Chloro-4-ethoxyphenyl)pyrazolo[1,5-a]pyrazin-4-yl)thio)acetonitrile (CAS 1105240-44-5), molecular formula C16H13ClN4OS and molecular weight 344.82 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-((2-(3-Chloro-4-ethoxyphenyl)pyrazolo[1,5-a]pyrazin-4-yl)thio)acetonitrile meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C16H13ClN4OS |
| Molecular Weight | 344.82 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Chloro Standards
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- 7-Chloro-2-(4-methoxybenzyl)-3-methyl-5-propylbenzofuran-4-ol (CAS 102612-16-8)
- (2R)-2-(3-Chloro-4-(methylsulfonyl)phenyl)-3-(2-oxocyclopentyl)propanoic acid (CAS 625113-52-2)
- (2Z)-3-[(3-Chloro-4-methylphenyl)amino]-2-[4-(3-fluoropropoxy)phenyl]prop-2-enenitrile (CAS 477889-16-0)
- 6-Chloro-2-(4-fluorophenyl)-3-(piperazin-1-ylmethyl)imidazo[1,2-a]pyridine (CAS 727976-21-8)
- 4-Chloro-6-{4-[5-(furan-2-yl)-1H-pyrazol-3-yl]piperidin-1-yl}pyrimidin-2-amine (CAS 1026080-38-5)
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Recommended Standards
- N-(4-Acetamidophenyl)-3-chlorobenzo[b]thiophene-2-carboxamide (CAS 162090-86-0)
- 4'-((4-Chlorophenyl)sulfonyl)-[1,1'-biphenyl]-4-ol (CAS 30809-75-7)
- (2E,4E)-4-(Benzenesulfonyl)-5-[(4-chlorophenyl)amino]penta-2,4-dienenitrile (CAS 339276-62-9)
- 1-[4-(4-acetylbenzenesulfonyl)piperazin-1-yl]-2-chloroethan-1-one (CAS 879319-23-0)
- n-(3-Formylphenyl)-4-methoxybenzamide (CAS 885459-73-4)
- Dibutyl 3,3'-thiodipropionate (CAS 6975-31-1)
- (1-(2-Cyanophenyl)-1H-pyrazol-4-yl)boronic acid (CAS 2225169-32-2)
- N-((Benzyldimethylsilyl)methyl)-4-methylbenzenesulfonamide (CAS 2779684-44-3)
- 2-(3-Methoxyphenoxy)-N-(2-(pyrrolidin-1-yl)-2-(thiophen-3-yl)ethyl)acetamide (CAS 954691-42-0)
- 5-[(2,5-Difluorophenyl)methyl]-1,2-oxazole-3-carboxylic Acid (CAS 1258503-80-8)
- 1-Chloro-2-(difluoromethyl)-3,5-difluorobenzene (CAS 1261846-42-7)
- 2,2'-((Propane-2,2-diylbis(4,1-phenylene))bis(methylene))bis(oxirane) (CAS 3530-44-7)
- Methyl 3-((5-bromo-2-nitrophenyl)amino)propanoate (CAS 1407832-71-6)
- Semaglutide Impurity 149 (CAS CATO-C4X-2226149)
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