4,7-Dichloro-3-iodoquinoline CAS 70237-22-8
| CAS No. | 70237-22-8 |
| Molecular Formula | C9H4Cl2IN |
| Molecular Weight | 323.95 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 323.95 g/mol gives 4,7-Dichloro-3-iodoquinoline distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4,7-Dichloro-3-iodoquinoline (CAS 70237-22-8), molecular formula C9H4Cl2IN and molecular weight 323.95 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4,7-Dichloro-3-iodoquinoline (C9H4Cl2IN) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine/iodine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 4,7-Dichloro-3-iodoquinoline 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 | C9H4Cl2IN |
| Molecular Weight | 323.95 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 |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| 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.) | 1977 |
| Halogen Content | Cl/I-containing |
| Nitrogen Atoms | 1 |
Related Dichloro Standards
- 1,3-Dichloro-4-iodoisoquinoline (CAS 1168136-15-9)
- 4,6-Dichloro-8-iodoquinoline (CAS 1171918-94-7)
- 4,7-Dichloro-6-iodoquinoline (CAS 1260794-65-7)
- 4,6-Dichloro-3-iodoquinoline (CAS 1431364-37-2)
- 2,3-Dichloro-6-iodoquinoline (CAS 1447959-18-3)
- 2,6-Dichloro-8-iodoquinoline (CAS 1702467-60-4)
- 1,3-Dichloro-7-iodoisoquinoline (CAS 1841079-90-0)
- 1,7-Dichloro-4-iodoisoquinoline (CAS 2386224-19-5)
Recommended Standards
- 2,5-Dichloro-8-iodoquinoline (CAS 2001441-62-7)
- 5-Bromo-6-iodo-1H-indoline (CAS 1260385-71-4)
- Ethyl 2,4-dibromo-3-hydroxybenzoate (CAS 129788-07-4)
- 3-(3,5-Dibromo-4-hydroxyphenyl)propanoic acid (CAS 13811-12-6)
- 2-(4,6-Dicyanopyridin-2-yl)acetic acid (CAS 1393572-31-0)
- N-(2-aminoethyl)-2-(3-chlorophenyl)acetamide (CAS 1593518-87-6)
- N-cyclohexyl-3-(methylthio)aniline (CAS 1019516-20-1)
- 1-Bromo-3-methyl-5-(2-methylpropoxy)benzene (CAS 1881330-60-4)
- 4-((4-(Benzo[d]thiazol-2-yl)piperidin-1-yl)sulfonyl)aniline (CAS 898652-08-9)
- Methyl 3-formyl-6-methoxy-1-(4-vinylbenzyl)-1H-indole-2-carboxylate (CAS 1170067-30-7)
- Etomidate Impurity 12 (CAS CATO-C4X-188412)
- (R)-Methyl 1-aminopyrrolidine-2-carboxylate (CAS 604003-90-9)
- tert-Butyl ((1S,2R)-1,3-dihydroxy-1-phenylpropan-2-yl)carbamate (CAS 1294479-62-1)
- (Leu31,Pro34)-Peptide YY (human) trifluoroacetate salt (CAS 179986-95-9)
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