4-Iodo-5-nitro-1H-imidazole CAS 76529-48-1
| CAS No. | 76529-48-1 |
| Molecular Formula | C3H2IN3O2 |
| Molecular Weight | 238.97 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies 4-Iodo-5-nitro-1H-imidazole (CAS 76529-48-1), a certified reference material (molecular formula C3H2IN3O2, MW 238.97 g/mol) for analytical method development and quality control.
Structurally, 4-Iodo-5-nitro-1H-imidazole (C3H2IN3O2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution. 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 238.97 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures 4-Iodo-5-nitro-1H-imidazole 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 | C3H2IN3O2 |
| Molecular Weight | 238.97 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 DMSO, DMF, methanol |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 3 |
Related Iodo Standards
- 2-Iodo-5-nitro-1H-imidazole (CAS 13369-81-8)
- 3-Iodo-4-nitro-1H-pyrazole (CAS 1395443-08-9)
- 6-Iodo-1,2,4-triazine-3,5(2H,4H)-dione (CAS 18802-36-3)
- 4-Iodo-3-nitro-1H-pyrazole (CAS 400753-02-8)
- 5-Iodo-1H-1,2,4-triazole-3-carboxylic acid (CAS 36033-56-4)
- (4-Iodo-3-methylisoxazol-5-yl)methanol (CAS 1380519-89-0)
- (4-Iodo-3-methylisoxazol-5-yl)methanol (CAS 1797983-69-7)
- (4-Iodo-5-methylisoxazol-3-yl)methanol (CAS 854015-61-5)
Recommended Standards
- 6-Fluoro-4-iodopyridin-3-ol (CAS 1034467-29-2)
- 3-Bromo-2,4,6-trifluorobenzaldehyde (CAS 1160573-16-9)
- 5-Fluoro-4-iodopyridin-2(1H)-one (CAS 1227576-86-4)
- 3-Fluoro-4-iodopyridin-2(1H)-one (CAS 1227580-21-3)
- Ethyl 1-((tert-butoxycarbonyl)amino)cyclobutane-1-carboxylate (CAS 163554-54-9)
- 7-N-benzyl-[1,3]diazino[4,5-d]pyrimidine-2,4,7-triamine (CAS 109160-46-5)
- 2-Chloro-N-(2-chloroethyl)-N-(cyclopropylmethyl)ethanamine HCl (CAS 90202-51-0)
- [1-(Benzenesulfonyl)-1H-pyrrolo[2,3-b]pyridin-3-yl]boronic acid (CAS 1373273-50-7)
- 2,4-Dioxo-1,2,3,4-tetrahydropyrimidine-5-sulfonyl fluoride (CAS 53489-92-2)
- Methyl 5-bromo-2-{[(propylamino)carbonyl]-amino}benzenecarboxylate (CAS 1135283-68-9)
- Boranthrene (CAS 7256-99-7)
- 3-[2-(2-Fluorophenoxy)ethyl]piperidinehydrochloride (CAS 1220018-74-5)
- 2-Benzylidene-5-(methylthio)thiophen-3(2H)-one (CAS 113544-20-0)
- D-Val23-Tirzepatide (CAS CATO-CPTD788911)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com