Benzonitrile, 5-(2-chloro-4-pyrimidinyl)-2,4-difluoro- CAS 1956307-41-7
| CAS No. | 1956307-41-7 |
| Molecular Formula | C11H4ClF2N3 |
| Molecular Weight | 251.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Benzonitrile, 5-(2-chloro-4-pyrimidinyl)-2,4-difluoro- (CAS 1956307-41-7), molecular formula C11H4ClF2N3 and molecular weight 251.62 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Benzonitrile, 5-(2-chloro-4-pyrimidinyl)-2,4-difluoro- (C11H4ClF2N3) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 251.62 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), Benzonitrile, 5-(2-chloro-4-pyrimidinyl)-2,4-difluoro- 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 | C11H4ClF2N3 |
| Molecular Weight | 251.62 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related Benzonitrile Standards
- Benzonitrile, 4-(3-bromo-1H-pyrazol-1-yl)- (CAS 1622841-08-0)
- Benzonitrile, 5-bromo-2-(difluoromethoxy)- (CAS 1261859-60-2)
- 169696-83-7 Benzonitrile, 2,5-bis[(methylsulfonyl)oxy]- CTK0H3782 (CAS 169696-83-7)
- Benzonitrile, 2-fluoro-6-[(1S)-1-phenylethoxy]- (CAS 872180-79-5)
- Benzonitrile, 4-chloro-5-(dimethoxymethyl)-2-fluoro- (CAS 2771128-00-6)
- 90905-00-3 Benzonitrile, 4-[4-(phenylmethyl)-1-piperazinyl]- CTK3I1451 (CAS 90905-00-3)
- Benzonitrile, 3-(4,4,4-trifluoro-3-oxo-1-buten-1-yl)- (CAS 395060-13-6)
- 89454-67-1 Benzonitrile, 4-(1H-imidazo[4,5-b]pyridin-2-yl)- DTXSID40356972 (CAS 89454-67-1)
Recommended Standards
- 2-(Chloromethyl)-6-(difluoromethyl)-5-hydroxypyridine-3-acetic acid (CAS 1807130-00-2)
- 4-Chloro-3-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)benzoic acid (CAS 196865-76-6)
- 2-(6-Chloro-3-(difluoromethyl)-5-methoxypyridin-2-yl)acetic acid (CAS 1807086-53-8)
- 5-(2-Chloro-4-nitrophenyl)furan-2-carbaldehyde (CAS 327049-94-5)
- 3-Phenoxy-5-(trifluoromethyl)picolinamide (CAS 1065607-72-8)
- 5-Bromo-6-(ethylamino)-3-methylpyrimidine-2,4(1H,3H)-dione (CAS 96625-95-5)
- 4-Methoxy-N-(piperidin-3-Yl)benzamide (CAS 31638-69-4)
- 4-Methyl-5-(3,4,5-trimethoxyphenyl)-4H-1,2,4-triazole-3-thiol (CAS 77803-41-9)
- (1-Methyl-1H-pyrazol-3-yl)methanamine hydrochloride (CAS 1185158-48-8)
- 2-(4-Chlorophenyl)-2-[6-(phenylsulfanyl)pyridazin-3-yl]acetamide (CAS 303997-45-7)
- Ethyl (R)-3-amino-3-(3-fluorophenyl)propanoate (CAS 1081504-61-1)
- 2-Aminohex-5-enamide (CAS 188194-81-2)
- 6-Aminomethylquinoline (CAS 99071-54-2)
- Insulin Degludec Impurity 14 (CAS CATO-C4X-215714)
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