3,5-Dichloro-4-iodotoluene CAS 939990-12-2
| CAS No. | 939990-12-2 |
| Molecular Formula | C7H5Cl2I |
| Molecular Weight | 286.93 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3,5-Dichloro-4-iodotoluene (CAS 939990-12-2) is a high-purity analytical reference standard with the molecular formula C7H5Cl2I and a molecular weight of 286.93 g/mol.
Owing to chlorine/iodine substitution, an aromatic ring system, 3,5-Dichloro-4-iodotoluene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 286.93 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).
As a certified reference material (CRM), 3,5-Dichloro-4-iodotoluene 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 | C7H5Cl2I |
| Molecular Weight | 286.93 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.) | 1987 |
| Halogen Content | Cl/I-containing |
Related Dichloro Standards
- 2,4-dichloro-1-(iodomethyl)benzene (CAS 116529-35-2)
- 1,5-Dichloro-3-iodo-2-methylbenzene (CAS 1215795-58-6)
- 1,2-Dichloro-4-(iodomethyl)benzene (CAS 142523-67-9)
- 1,5-Dichloro-2-iodo-3-methylbenzene (CAS 175277-97-1)
- 2,6-Dichloro-4-iodotoluene (CAS 177167-52-1)
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- 3,4-Dichloro-2-iodotoluene (CAS 1803809-48-4)
Recommended Standards
- 3,5-Dibromo-2-nitrothiophene (CAS 31845-01-9)
- 4,5-Dibromoisothiazole-3-carboxylic acid (CAS 4576-87-8)
- 3,4-Dibromo-2-nitrothiophene (CAS 35633-91-1)
- 4-chloro-2-(chloromethyl)-1-iodobenzene (CAS 711017-73-1)
- 3-(4-Chlorophenoxy)-3-oxopropanoic acid (CAS 60179-40-0)
- 3,5-Bis(perfluorohexyl)-1-(trifluoroacetyl)-1H- pyrazole (CAS 261761-08-4)
- 2-(Azepan-1-yl)benzene-1,3-dicarbonitrile (CAS 882748-18-7)
- (1r,6s)-6-(((Benzyloxy)carbonyl)amino)cyclohex-3-ene-1-carboxylic acid (CAS 124753-65-7)
- 2-Cyano-4-nitrobenzene-1-sulfonyl chloride (CAS 1099632-44-6)
- rel-(1R,3R)-Methyl 3-aminocyclopentanecarboxylate (CAS 733726-58-4)
- Bis N-Benzyloxycarbonyl-6-O-benzyl-valacyclovir (CAS 1356350-92-9)
- trans-3-Methylsulfonylcyclobutylamine (CAS 1363381-54-7)
- 4-Bromo-2-(difluoromethyl)-6-methylpyrimidine (CAS 2248359-57-9)
- Semaglutide impurity 47 (CAS CATO-C4X-222647)
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