4-Chloro-1-iodo-2-methylbenzene CAS 23399-70-4
| CAS No. | 23399-70-4 |
| Molecular Formula | C7H6ClI |
| Molecular Weight | 252.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-Chloro-1-iodo-2-methylbenzene 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.
4-Chloro-1-iodo-2-methylbenzene (CAS 23399-70-4), molecular formula C7H6ClI and molecular weight 252.48 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Chloro-1-iodo-2-methylbenzene (C7H6ClI) contains chlorine/iodine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 252.48 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H6ClI |
| Molecular Weight | 252.48 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl/I-containing |
Related Chloro Standards
- 2-Chloro-1-iodo-3-methylbenzene (CAS 116632-40-7)
- 2-Chloro-5-iodotoluene (CAS 116632-41-8)
- 2-Chloro-1-iodo-4-methylbenzene (CAS 116632-42-9)
- 1-Chloro-3-iodo-5-methylbenzene (CAS 116632-43-0)
- 1-Chloro-2-(iodomethyl)benzene (CAS 70450-40-7)
- 1-Chloro-3-(iodomethyl)benzene (CAS 70450-41-8)
- 1-Chloro-4-(iodomethyl)benzene (CAS 35424-56-7)
- 2-Chloro-6-iodotoluene (CAS 42048-11-3)
Recommended Standards
- 3-Octadecene (CAS 79647-77-1)
- 4-Chloro-2-iodotoluene (CAS 33184-48-4)
- 3-Chloro-2-iodotoluene (CAS 5100-98-1)
- 4-Chloro-3-iodotoluene (CAS 2401-22-1)
- (1,2-Dimethylpyrrolidin-2-yl)methanol hydrochloride (CAS 2613385-29-6)
- 1-(4-methoxypyrimidin-2-yl)ethanone (CAS 463337-53-3)
- 4-Chloro-6-(1H-pyrazol-1-yl)pyrimidin-5-amine (CAS 1342392-11-3)
- (11bS)-2,6-Bis(4-fluorophenyl)-4-hydroxydinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepine 4-oxide (CAS 1254771-83-9)
- Phosphazene ligand P<SUB>2</SUB>-tert-butyl solution (CAS 111324-03-9)
- 1-(2,4-Dimethylquinolin-3-yl)ethanone (CAS 943825-10-3)
- cis-6-Phenyl-piperidine-2-carboxylic acid (CAS 791559-10-9)
- 2-Bromo-3-methylbut-2-en-1-ol (CAS 80555-61-9)
- Neostigmine EP Impurity A methyl sulfate (CAS 4312-54-3)
- Semaglutide impurity 25 (CAS CATO-C4X-222625)
Why CATO?
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