Ampicillin Impurity 82 CAS CATO-C4X-144382
| CAS No. | CATO-C4X-144382 |
| Molecular Formula | C16H18N4O5S |
| Molecular Weight | 378.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Ampicillin Impurity 82 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.
Ampicillin Impurity 82 (CAS CATO-C4X-144382) is a certified pharmaceutical impurity reference standard with the molecular formula C16H18N4O5S and a molecular weight of 378.40 g/mol.
Ampicillin Impurity 82 (C16H18N4O5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C16H18N4O5S |
| Molecular Weight | 378.40 g/mol |
| Purity | ＞90% |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Ampicillin Standards
- Ampicillin Impurity 94 (CAS CATO-C4X-144394)
- Ampicillin Impurity 38 (CAS CATO-C4X-144338)
- Ampicillin Impurity 27 （Mixture of Diastereoisomer） (CAS CATO-C4X-144327)
- Ampicillin Impurity 87 (CAS CATO-C4X-144387)
- Ampicillin Impurity 92 (CAS CATO-C4X-144392)
- Ampicillin EP Impurity D (CAS 32746-94-4)
- Ampicillin Impurity 37 (CAS CATO-C4X-144337)
- Ampicillin Impurity 90 (CAS CATO-C4X-144390)
Recommended Standards
- Glipizide EP Impurity G (CAS 33288-74-3)
- Trelagliptin Impurity 40 (CAS CATO-C4X-104640)
- 5-HO-EHDPP (CAS 2173149-33-0)
- N-ethyl-2-(2-(3-methyl-5-(trifluoromethyl)-1H-pyrazol-1-yl)thiazole-4-carbonyl)hydrazine-1-carbothioamide (CAS 956625-81-3)
- Ceftezole Impurity 1 (CAS CATO-C4X-23091)
- Famciclovir impurity 3 (CAS 172529-94-1)
- Econazole impurity 28 (CAS 56719-70-1)
- Fmoc-Gly-OPfp (CAS 86060-85-7)
- Tert-butyl (1S,6S)-1-methyl-3,7-diazabicyclo[4.2.0]Octane-7-carboxylate (CAS 2306254-01-1)
- 1-(2-Methyl-6-(trifluoromethyl)pyrimidin-4-yl)pyrrolidine-3-carboxylic acid (CAS 1707372-78-8)
- 1-(Benzofuran-5-yl)ethanol (CAS 181819-99-8)
- Benzyl (S)-3-(dimethylamino)pyrrolidine-1-carboxylate (CAS 1217602-15-7)
- Florfenicol Amine Hydrochloride (CAS 108656-33-3)
- [5-31]-Semaglutide (CAS CATO-C4X-2226263)
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