2,4-Diiodo-6-nitrophenol CAS 20294-48-8
| CAS No. | 20294-48-8 |
| Molecular Formula | C6H3I2NO3 |
| Molecular Weight | 390.90 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2,4-Diiodo-6-nitrophenol is closely related to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 2,4-Diiodo-6-nitrophenol (CAS 20294-48-8), a certified reference material (molecular formula C6H3I2NO3, MW 390.90 g/mol) for analytical method development and quality control.
The molecular framework of 2,4-Diiodo-6-nitrophenol (C6H3I2NO3) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system. 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.
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 | C6H3I2NO3 |
| Molecular Weight | 390.90 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 sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
Related Diiodo Standards
- 2,6-Diiodo-4-nitrophenol (CAS 305-85-1)
- 2,6-Diiodo-3,5-dimethoxypyridine (CAS 1131335-49-3)
- 3,5-Diiodo-4-methoxy-1-methylpyridin-2(1H)-one (CAS 920490-66-0)
- 1,2-Diiodo-4,5-dimethoxybenzene (CAS 110190-08-4)
- (4,5-Diiodo-1,2-phenylene)dimethanol (CAS 53279-73-5)
- 1,4-Diiodo-2,3-Dimethoxybenzene (CAS 51560-25-9)
- 1,4-Diiodo-2,5-dimethoxybenzene (CAS 51560-21-5)
- 3,5-diiodo-4-methoxyÂ-benzÂylalcohol (CAS 52273-41-3)
Recommended Standards
- 2,4',6-Tribromo-1,1'-biphenyl (CAS 64258-03-3)
- 3,4',5-Tribromo-1,1'-biphenyl (CAS 72416-87-6)
- 2,4,4'-Tribromo-1,1'-biphenyl (CAS 6430-90-6)
- PBB 37 (CAS 6683-35-8)
- 6-bromo-5-chloro-3H-imidazo[4,5-b]pyridine (CAS 83472-63-3)
- benzyl N-[2-(1-methyltriazol-4-yl)ethyl]carbamate (CAS 2302591-43-9)
- 3-amino-2-(2-furylmethyl)propan-1-ol (CAS 949226-57-7)
- Norepinephrine Impurity 141 (CAS CATO-C4X-1514141)
- Finerenone-d5 (CAS CATO-C4X-288046)
- Compound K (CAS 160729-91-9)
- Progesterone Impurity N7 (CAS 80699-76-9)
- 5-((4-Ethylbenzyl)thio)-8,9-dimethoxyimidazo[1,2-c]quinazolin-2(3H)-one (CAS 439109-23-6)
- (3R-cis)-4-Aminotetrahydro-3-furanol (CAS 153610-11-8)
- [His]1-Acetylated Semaglutide (CAS CATO-C4X-2226219)
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