4,8-Dichlorocinnoline CAS 68211-14-3
| CAS No. | 68211-14-3 |
| Molecular Formula | C8H4Cl2N2 |
| Molecular Weight | 199.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 4,8-Dichlorocinnoline is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 199.04 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).
4,8-Dichlorocinnoline (CAS 68211-14-3), molecular formula C8H4Cl2N2 and molecular weight 199.04 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), 4,8-Dichlorocinnoline 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 | C8H4Cl2N2 |
| Molecular Weight | 199.04 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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.) | 1976 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichlorocinnoline Standards
Recommended Standards
- 4,8-Dichloro-1,5-naphthyridine (CAS 28252-80-4)
- 4,8-Dichloroquinazoline (CAS 7148-34-7)
- 4,7-dichloroquinazoline (CAS 2148-57-4)
- 4-Bromo-2,3-dihydrobenzofuran (CAS 774220-36-9)
- 3-(4-Isopropylphenyl)-N-methylimidazo[1,2-a]pyrazin-8-amine (CAS 787591-18-8)
- (R)-2-(perfluorophenyl)pyrrolidine (CAS 1241680-02-3)
- 2-(4-Bromophenyl)-1-(6-methoxypyridin-3-yl)-6-methyl-1,5,6,7-tetrahydro-4H-indol-4-one (CAS 1022648-64-1)
- 6-(Pyridin-2-yl)-[2,2'-bipyridine]-4-carbonitrile (CAS 81874-54-6)
- Taccalonolide AJ (CAS 1349904-82-0)
- 3-Hydroxy-2-(4-methoxyphenyl)acrylaldehyde (CAS 53868-40-9)
- 4-Amino-N-(2-(diethylamino)ethyl)-1-methyl-1H-pyrazole-3-carboxamide (CAS 1495517-23-1)
- BENZYL 3-(TERT-BUTOXYCARBONYL)BENZYLCARBAMATE (CAS 102638-44-8)
- Baloxavir Impurity 63 (CAS 16874-34-3)
- Semaglutide Impurity 121 X Sodium Salt (CAS CATO-C4X-2226121)
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