4-iodo-1,5-dimethyl-pyrazole-3-sulfonamide CAS 2250242-05-6
| CAS No. | 2250242-05-6 |
| Molecular Formula | C5H12IN3O2S |
| Molecular Weight | 305.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 4-iodo-1,5-dimethyl-pyrazole-3-sulfonamide (C5H12IN3O2S) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
4-iodo-1,5-dimethyl-pyrazole-3-sulfonamide (CAS 2250242-05-6), molecular formula C5H12IN3O2S and molecular weight 305.14 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 4-iodo-1,5-dimethyl-pyrazole-3-sulfonamide 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 | C5H12IN3O2S |
| Molecular Weight | 305.14 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related iodo Standards
- 3-Iodo-6-methyl-8-(methylthio)imidazo[1,2-a]pyrazine (CAS 1094070-47-9)
- 3-Iodo-5-morpholinopyridin-2-amine (CAS 1036647-71-8)
- 2-(4-Iodo-1H-pyrazol-1-yl)-1-(pyrrolidin-1-yl)ethan-1-one (CAS 956206-14-7)
- 5-Iodo-2-morpholinopyridin-4-amine (CAS 848579-81-7)
- 3-Iodo-4-(propylamino)benzoic acid (CAS 1131588-10-7)
- 3-Iodo-4-(isopropylamino)benzoic acid (CAS 1131588-11-8)
- Methyl 4-iodo-L-phenylalaninate (CAS 113850-77-4)
- 4-Iodo-α-methyl-D-phenylalanine (CAS 1241679-14-0)
Recommended Standards
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (4-amino-2-(furan-3-yl)pyrimidin-5-yl)boronate (CAS 2223041-12-9)
- Ethyl 3-bromo-5-fluoro-2-isopropoxybenzoate (CAS 2112750-69-1)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (4-amino-2-(furan-2-yl)pyrimidin-5-yl)boronate (CAS 2223030-35-9)
- Ethyl 5-bromo-2-fluoro-3-isopropoxybenzoate (CAS 2624417-43-0)
- 4-(2-Methyl-1h-imidazol-1-yl)pyridine-2-carboxylic acid (CAS 1094369-47-7)
- 2-(Pyrrolidin-3-yl)-1,3,4-oxadiazole (CAS 1225218-54-1)
- 3-Amino-6-(4-methoxyphenyl)-N-(1-phenylethyl)-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide (CAS 500272-94-6)
- 4-(3-Bromopropyl)benzoic acid (CAS 6309-79-1)
- 7-Methoxy-3,5,8-trimethyl-[1,2,4]triazolo[4,3-c]pyrimidine (CAS 115893-51-1)
- 1-Chloro-2-((4-chlorophenyl)sulfonyl)benzene (CAS 38980-51-7)
- Peptide 441 (CAS CATO-CPTD788441)
- N-[3-Chloro-5-(trifluoromethyl)-2-pyridinyl]-4-methoxy-N-methylbenzenesulfonohydrazide (CAS 339276-30-1)
- [4-bromo-5-(difluoromethoxy)-6-fluoro-2-naphthyl] 2,2-dimethylpropanoate (CAS 2763159-26-6)
- Biotinyl-Neuropeptide W-23 (human) (CAS 1815618-09-7)
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