4-chloro-5-nitro-1H-pyrrole-2-carboxylic acid CAS 1118787-10-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1118787-10-2 |
| Molecular Formula | C5H3ClN2O4 |
| Molecular Weight | 190.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-chloro-5-nitro-1H-pyrrole-2-carboxylic acid (CAS 1118787-10-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H3ClN2O4. Molecular weight: 190.54 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H3ClN2O4 |
| Molecular Weight | 190.54 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.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related chloro Standards
- 2-Chloro-5-hydroxy-6-oxo-1,6-dihydropyrimidine-4-carboxylic acid (CAS 1824642-99-0)
- 5-Chloro-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid (CAS 36313-98-1)
- 3-(2-Chloro-1,1,2-trifluoroethoxy)-1,2-propeneoxide (CAS 122502-50-5)
- 2-Chloro-5-fluoro-4-methyl-3-nitropyridine (CAS 1003711-51-0)
- 5-Chloro-4-fluoro-2-nitroaniline (CAS 104222-34-6)
- 3-Chloro-4-fluoro-2-nitroaniline (CAS 1059081-23-0)
- 5-Chloro-3-fluoro-2-nitroaniline (CAS 1352457-23-8)
- 2-Chloro-5-fluoro-4-hydroxybenzoic acid (CAS 1394954-06-3)
Recommended Standards
- 2-Amino-6-chloro-5-nitro-4(3H)-pyrimidone (CAS 1007-99-4)
- 1-Methyl-3-nitro-1H-1,2,4-triazole-5-carbonyl chloride (CAS 131758-19-5)
- o-Phenylene Phosphorochloridate (CAS 1499-17-8)
- 2,2-Dimethylthiomorpholine 1-oxide (CAS 1384431-11-1)
- (4-Bromophenyl)(2-(phenylamino)thiazol-5-yl)methanone (CAS 343376-31-8)
- n-((3-Methyl-1h-pyrazol-4-yl)methyl)cyclohexanamine (CAS 1153884-15-1)
- N-(3-Chloro-4-methylphenyl)-2-[2,6-dinitro-4-(trifluoromethyl)phenyl]-hydrazinecarbothioamide (CAS 436133-68-5)
- 5-(Benzenesulfonyl)-2-(dimethylamino)pyrimidin-4-ol (CAS 106073-44-3)
- 5-Phenyl-6,7-dihydro-3H-pyrrolo[2,3-d]pyrimidin-4(5H)-one (CAS 1713463-62-7)
- Semaglutide Impurity 6 (CAS 62-57-7)
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 13829788188 / jacky.chen@cato-chem.com