3,4-Diiodo-5-methyl-1H-pyrazole CAS 6715-87-3
| CAS No. | 6715-87-3 |
| Molecular Formula | C4H4I2N2 |
| Molecular Weight | 333.90 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 3,4-Diiodo-5-methyl-1H-pyrazole (C4H4I2N2) is characterized by a nitrile 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
3,4-Diiodo-5-methyl-1H-pyrazole (CAS 6715-87-3) is a high-purity analytical reference standard with the molecular formula C4H4I2N2 and a molecular weight of 333.90 g/mol.
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.
CATO manufactures 3,4-Diiodo-5-methyl-1H-pyrazole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C4H4I2N2 |
| Molecular Weight | 333.90 g/mol |
| Appearance | 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 |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |
Related Diiodo Standards
- 2,5-Diiodo-4-methylimidazole (CAS 149510-85-0)
- 2,4-Diiodo-1-methyl-1H-imidazole (CAS 71794-53-1)
- 3,5-Diiodo-4-methyl-1H-pyrazole (CAS 866639-16-9)
- 4,5-Diiodo-1-methylimidazole (CAS 37067-96-2)
- 4,5-Diiodo-2-methylimidazole (CAS 73746-44-8)
- 2,5-diiodo-1-methyl-1H-imidazole (CAS 86026-81-5)
- 1,5-Diiodo-3-methylpentane (CAS 51174-46-0)
- 4,5-diiodo-1-methyl-triazole (CAS 1248676-71-2)
Recommended Standards
- 2,6-Dichloro-3-iodo-5-nitropyridin-4-amine (CAS 2064258-72-4)
- 3-Bromo-2,4-difluoro-6-iodoaniline (CAS 2219373-70-1)
- 2-Bromo-4-(difluoromethyl)-5-iodopyridine (CAS 1806781-50-9)
- 3-Bromo-2,5-difluoro-4-iodoaniline (CAS 2852766-94-8)
- 6-(Methylthio)pyrazin-2-amine (CAS 3430-08-8)
- 2-Amino-7,7-dimethyl-4-(naphthalen-2-yl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile (CAS 311773-28-1)
- 2-Isopropyl-5-methylphenyl hydrogen carbonate (CAS 552-93-2)
- Benzyl (2-((S)-2-(((S)-1-amino-1-oxo-3-phenylpropan-2-yl)carbamoyl)pyrrolidin-1-yl)-2-oxoethyl)carbamate (CAS 61867-02-5)
- N-(prop-2-yn-1-yl)tetrahydrofuran-3-amine (CAS 1340104-09-7)
- (R)-2-((1-Benzylpiperidin-3-yl)(isopropyl)amino)acetic acid (CAS 1353995-38-6)
- 1-Bromo-3-Phenoxybenzene (CAS 6876-00-2)
- (R)-3-amino-2-(3,5-difluorobenzyl)propanoic acid (CAS 1260605-51-3)
- Fmoc-D-HomoSec(pMeBzl)-OH (CAS 2044711-10-4)
- Semaglutide Impurity 147 (CAS CATO-C4X-2226147)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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