4,6-Dichloro-5-iodo-2-methylpyrimidine CAS 111079-21-1
| CAS No. | 111079-21-1 |
| Molecular Formula | C5H3Cl2IN2 |
| Molecular Weight | 288.90 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4,6-Dichloro-5-iodo-2-methylpyrimidine is closely related to a nitrile group, chlorine/iodine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4,6-Dichloro-5-iodo-2-methylpyrimidine (CAS 111079-21-1) is a high-purity analytical reference standard with the molecular formula C5H3Cl2IN2 and a molecular weight of 288.90 g/mol.
4,6-Dichloro-5-iodo-2-methylpyrimidine (C5H3Cl2IN2) contains a nitrile group, chlorine/iodine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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), 4,6-Dichloro-5-iodo-2-methylpyrimidine 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 | C5H3Cl2IN2 |
| Molecular Weight | 288.90 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl/I-containing |
| Nitrogen Atoms | 2 |
Related Dichloro Standards
- 3,5-Dichloro-2-iodophenol (CAS 1028332-19-5)
- 2,6-Dichloro-3-iodopyridin-4-amine (CAS 1235873-11-6)
- 2,4-Dichloro-6-iodopyridin-3-amine (CAS 1239719-94-8)
- 2,5-Dichloro-3-iodophenol (CAS 1803809-27-9)
- 2,3-Dichloro-5-iodophenol (CAS 1805483-32-2)
- 3,4-Dichloro-5-iodophenol (CAS 1807182-53-1)
- 2,3-Dichloro-5-iodopyridin-4-amine (CAS 2454396-60-0)
- 2,4-Dichloro-5-(iodomethyl)pyrimidine (CAS 7627-44-3)
Recommended Standards
- 2-(2-chlorophenyl)quinazoline-4-thiol (CAS 18590-76-6)
- tert-Butyl[2-(4-chloro-2-fluorophenyl)ethoxy]dimethylsilane (CAS 1881296-44-1)
- 2-Bromoiodobenzene-<SUP>13</SUP>C<SUB>6</SUB> (CAS 1173023-32-9)
- 2,5-Dibromoselenophene (CAS 1755-36-8)
- 2-Fluoro-2-methoxybenzophenone (CAS 890098-05-2)
- Tin bis(trifluoromethylsulfonyl)imide (CAS 460096-08-6)
- 2-Amino-5-iodo-3-nitropyridine (CAS 25391-57-5)
- (2E)-3-(4-Methoxyphenyl)-1-(2-methylphenyl)prop-2-en-1-one (CAS 590401-44-8)
- GNE-900, >98% (HPLC) (CAS 1200126-26-6)
- [3-(dimethylamino)-2-hydroxypropyl](methyl)amine (CAS 34569-34-1)
- Hexahydro-2H-isothiazolo[2,3-a]pyrazine 1,1-dioxide 2,2,2-trifluoroacetate (CAS 2138076-26-1)
- 2-Amino-5-bromobenzyl Alcohol Hydrobromide (CAS 226713-43-5)
- 2-(Difluoromethyl)-6-hydroxy-5-iodo-3-methylpyridine (CAS 1805538-49-1)
- Insulin Degludec Impurity 6 (CAS CATO-C4X-21576)
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