3-Bromo-2,6-diiodo-5-methoxypyridine CAS 1040682-61-8
| CAS No. | 1040682-61-8 |
| Molecular Formula | C6H4BrI2NO |
| Molecular Weight | 439.82 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-Bromo-2,6-diiodo-5-methoxypyridine (CAS 1040682-61-8), molecular formula C6H4BrI2NO and molecular weight 439.82 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-Bromo-2,6-diiodo-5-methoxypyridine (C6H4BrI2NO) contains an amide group, a hydroxyl group, an ether linkage, bromine/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 439.82 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6H4BrI2NO |
| Molecular Weight | 439.82 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 room temperature, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Br/I-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 2-Bromo-4,6-diiodo-3-methoxypyridine (CAS 1221792-52-4)
- 2-Bromo-6-iodo-3-methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 2096996-92-6)
- 4-((3-Bromo-4-hydroxy-5-methoxybenzylidene)amino)-3-(2-chlorophenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 478254-34-1)
- 4-((3-Bromo-4-hydroxy-5-methoxybenzylidene)amino)-3-(3-chlorophenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 478255-24-2)
- Ethyl 4-bromo-1-(2-chlorophenyl)-5-(4-chlorophenyl)-1H-pyrazole-3-carboxylate (CAS 851728-84-2)
- N-(2-Bromo-4-methylphenyl)-2-((3-thiomorpholinopyrazin-2-yl)thio)acetamide (CAS 1226449-28-0)
- 9-Bromo-2-(furan-2-yl)-5-(3-nitrophenyl)-5,10b-dihydro-1H-benzo[e]pyrazolo[1,5-c][1,3]oxazine (CAS 799779-27-4)
- 4-Bromo-1-trityl-1H-indazole (CAS 1610377-06-4)
Recommended Standards
- 3-Chloro-N-((3-(1-(4-fluorophenyl)-1H-pyrazol-3-yl)-4,5-dihydroisoxazol-5-yl)methyl)-5-(trifluoromethyl)pyridin-2-amine (CAS 318951-75-6)
- N-[(Z)-2-[4-(4-Chlorophenyl)-5-(trifluoromethyl)-4H-1,2,4-triazol-3-yl]-2-nitroethenyl]-4-methoxyaniline (CAS 400079-83-6)
- 2-(((4-Bromophenyl)thio)methyl)-4-chloro-7-methyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidine (CAS 885459-45-0)
- 4-Chloro-N-[(Z)-2-[4-(4-methoxyphenyl)-5-(trifluoromethyl)-4H-1,2,4-triazol-3-yl]-2-nitroethenyl]aniline (CAS 400079-84-7)
- 3-Cyclopropoxy-N2,N4-dimethylpyridine-2,4-dicarboxamide (CAS 1243318-14-0)
- 4-[2-(tert-Butyl)-4-methylphenoxy]piperidinehydrochloride (CAS 1219979-38-0)
- 3-Chloro-1-methyl-1H-pyrrole-2-carbonitrile (CAS 1823930-74-0)
- 2-Hydroxy-5-iodo-3-methoxybenzaldehyde (CAS 7359-14-0)
- Ethyl (2Z)-2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]sulfanyl}-3-[(4-chlorophenyl)amino]prop-2-enoate (CAS 338966-62-4)
- Methyl 5-(2-chlorophenyl)-1-(3,4-dichlorophenyl)-1H-pyrazole-3-carboxylate (CAS 318256-25-6)
- (2AS,6aR,6bR,8aR,9R,12bR,14aR)-9-(furan-3-yl)-1,1,8a,12b-tetramethyl-2a,3,6b,7,8,8a,9,12b,14,14a-decahydro-4H,6H,11H-pyrano[4',3':3,3a]isobenzofuro[5,4-f]isochromene-4,11,13(1H)-trione (CAS 989-23-1)
- Melperone HCl (CAS 1622-79-3)
- 4-Fluoro-N-(3-fluoro-2-methylphenyl)benzamide (CAS 1032226-70-2)
- Semaglutide impurity 92 (CAS CATO-C4X-222692)
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