Chloramphenicol impurity 2 CAS 982-57-0
| CAS No. | 982-57-0 |
| Molecular Formula | C15H16Cl2N2O8 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Chloramphenicol impurity 2 (CAS 982-57-0), a pharmacopoeial impurity reference standard (molecular formula C15H16Cl2N2O8Na, MW 446.19 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C15H16Cl2N2O8Na, Chloramphenicol impurity 2 contains a salt form, a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 446.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Chloramphenicol impurity 2 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 | C15H16Cl2N2O8 Na |
| Molecular Weight | 446.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloramphenicol Standards
- Chloramphenicol 1-O-β-D-Glucuronide (CAS 1013074-93-5)
- Chloramphenicol 3-Acetate (CAS 10318-16-8)
- Chloramphenicol-13C6 (CAS 1217706-02-9)
- Chloramphenicol ß-D-galactoside (CAS 191476-32-1)
- Chloramphenicol-d5 (CAS 202480-68-0)
- Chloramphenicol 1-Acetate (CAS 23214-93-9)
- (±)-Chloramphenicol (CAS 2787-09-9)
- Chloramphenicol Succinate (CAS 3544-94-3)
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- (2S)-4-(Benzyloxy)pyrrolidine-2-carboxylic acid (CAS 202137-59-5)
- 2-(Chloromethyl)-3-cyano-6-(difluoromethyl)-4-methylpyridine (CAS 1807120-14-4)
- Gabapentine Impurity 30 (CAS 6684-01-1)
- D-Tyr1-Tirzepatide (CAS CATO-CPTD788928)
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