4-Iodo-1-methyl-5-nitro-1H-pyrazole-3-carboxylic acid CAS 1354704-33-8
| CAS No. | 1354704-33-8 |
| Molecular Formula | C5H4IN3O4 |
| Molecular Weight | 297.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Iodo-1-methyl-5-nitro-1H-pyrazole-3-carboxylic acid (CAS 1354704-33-8), molecular formula C5H4IN3O4 and molecular weight 297.01 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-Iodo-1-methyl-5-nitro-1H-pyrazole-3-carboxylic acid (C5H4IN3O4) is characterized by a carbohydrate-derived structure, an amide group, iodine substitution. 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 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-Iodo-1-methyl-5-nitro-1H-pyrazole-3-carboxylic acid 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 | C5H4IN3O4 |
| Molecular Weight | 297.01 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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 |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 3 |
Related Iodo Standards
- 4-Iodo-1-methyl-3-nitro-1H-pyrazole-5-carboxylic acid (CAS 1354705-31-9)
- 2-(4-Iodo-3-nitro-1h-pyrazol-1-yl)acetic acid (CAS 400753-05-1)
- 2-Iodo-4-(trifluoromethyl)benzonitrile (CAS 1259323-42-6)
- 3-Iodo-4-(trifluoromethyl)benzonitrile (CAS 1261482-46-5)
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- 2-Iodo-5-(trifluoromethyl)benzonitrile (CAS 868166-20-5)
Recommended Standards
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- 2-ethyl-2-(methylamino)butanoic acid hydrochloride (CAS 610786-85-1)
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- N-(6-Methylbenzo[d]thiazol-2-yl)-2-(phenylthio)acetamide (CAS 724735-16-4)
- 1,5-Diethyl-3-methyl-1H-pyrazolo[4,3-d]pyrimidin-7(4H)-one (CAS 89239-67-8)
- 1-(Bromomethyl)-2-ethoxynaphthalene (CAS 1156518-87-4)
- Ethyl 2-(4-butylphenyl)-2-oxoacetate (CAS 80120-35-0)
- 2-(5-phenyl-2H-tetrazol-2-yl)ethanol (CAS 93742-43-9)
- 4-[[3-(Dimethylamino)propyl]carbamoyl]phenylboronic Acid Pinacol Ester (CAS 832114-10-0)
- 4-Methyl-7-(((2R,3R,4S,5R)-3,4,5-trihydroxytetrahydro-2H-pyran-2-yl)oxy)-2H-chromen-2-one (CAS 1643953-00-7)
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