5-Chloro-4-nitro-1H-imidazole CAS 57531-38-1
| CAS No. | 57531-38-1 |
| Molecular Formula | C3H2ClN3O2 |
| Molecular Weight | 147.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-Chloro-4-nitro-1H-imidazole.
5-Chloro-4-nitro-1H-imidazole (CAS 57531-38-1) is a high-purity analytical reference standard with the molecular formula C3H2ClN3O2 and a molecular weight of 147.52 g/mol.
5-Chloro-4-nitro-1H-imidazole (C3H2ClN3O2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-Chloro-4-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 | C3H2ClN3O2 |
| Molecular Weight | 147.52 g/mol |
| Purity | >95% |
| 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.) | 1973 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- 6-Chloro-1,3,5-triazine-2,4-diol (CAS 135581-60-1)
- 3-Chloro-1-nitro-1H-pyrazole (CAS 1369959-11-4)
- 3-Chloro-5-nitro-1H-pyrazole (CAS 1369959-12-5)
- 2-Chloro-4-nitroimidazole (CAS 57531-37-0)
- 3-Chloro-4-nitropyrazole (CAS 35852-75-6)
- 5-Chloro-2-fluoropyridin-3-ol (CAS 1003711-65-6)
- 2-Chloro-3-fluoro-4-hydroxypyridine (CAS 1184172-46-0)
- 2-Chloro-5-fluoropyridin-4-ol (CAS 1196153-96-4)
Recommended Standards
- 3-Chloroisoxazole-5-carboxylic acid (CAS 20724-56-5)
- 5-Chloroisoxazole-3-carboxylic acid (CAS 343566-57-4)
- Ixazomib Impurity 11 (CAS 69125-10-6)
- 2-Oxo-2,3-dihydrooxazole-5-carbonyl chloride (CAS 64843-26-1)
- N-(3,4-Dichlorophenyl)-3-nitrobenzenecarboximidamide (CAS 339009-87-9)
- N-(3-bromo-4-fluorobenzyl)tetrahydro-2H-pyran-4-amine (CAS 1154882-81-1)
- 1,1,2,2-Tetrakis(4-(1H-benzo[d]imidazol-1-yl)phenyl)ethene (CAS 2171498-77-2)
- 1-(4-Methoxybenzyl)-1H-indazole-3-carboximidamide hydrochloride (CAS 1628879-79-7)
- DNP-DL-norvaline (CAS 31356-37-3)
- N-(4-(1H-pyrrol-1-yl)phenyl)-4-fluorobenzenesulfonamide (CAS 383146-09-6)
- Abiraterone Impurity 19 (CAS 2484719-16-4)
- N-Methyl-5-(2,2,2-trifluoroethyl)pyridin-2-amine (CAS 1478981-71-3)
- 6-ethyl-2-oxo-1,2,5,6,7,8-hexahydroquinoline-3-carbonitrile (CAS 1249858-53-4)
- Semaglutide impurity 267 (CAS CATO-C4X-2226267)
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