Benzylpenicillin Impurity 82 CAS CATO-C4X-189982
| CAS No. | CATO-C4X-189982 |
| Molecular Formula | C17H22N2O5S |
| Molecular Weight | 366.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C17H22N2O5S, Benzylpenicillin Impurity 82 contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 366.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Benzylpenicillin Impurity 82 (CAS CATO-C4X-189982) is a certified pharmaceutical impurity reference standard with the molecular formula C17H22N2O5S and a molecular weight of 366.43 g/mol.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C17H22N2O5S |
| Molecular Weight | 366.43 g/mol |
| Purity | ≥95% |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Benzylpenicillin Standards
- Benzylpenicillin Impurity 25 (CAS CATO-C4X-189925)
- Benzylpenicillin Impurity 29 (CAS 58678-43-6)
- Benzylpenicillin Impurity 30 (CAS 525-94-0)
- Benzylpenicillin CP Impurity J (CAS CATO-C4X-189910)
- Benzylpenicillin Impurity 47 (CAS CATO-C4X-189947)
- Benzylpenicillin Potassium EP impurity E (CAS 11039-68-2)
- Benzylpenicillin Impurity 21(Mixture of Diastereomers) (CAS 13057-98-2)
- Benzylpenicillin EP Impurity E (CAS CATO-C4X-18995)
Recommended Standards
- Ceftizoxime Impurity 10 (CAS 57028-71-4)
- Dehydrocorydaline (CAS 30045-16-0)
- Promethazine Impurity 46 (CAS CATO-C4X-141846)
- Biotin-C2-maleimide (CAS 139554-72-6)
- Tegoprazan Impurity 82 (CAS CATO-C4X-229782)
- Mavacoxib Impurity 4 (CAS CATO-C4X-30594)
- Cinacalcet Impurity N97 (CAS 103324-39-6)
- 3-(Furan-2-yl)-2-methoxybenzoic acid (CAS 1261937-86-3)
- Ethyl 2-(4-aminochroman-4-yl)acetate (CAS 1541628-28-7)
- (S)-3-Amino-3-(3-chlorophenyl)propan-1-ol (CAS 1212999-20-6)
- 4-Amino-3-sulfamoylbenzoic acid (CAS 89694-28-0)
- 2-methyl-1H-indole-3-carbohydrazide (CAS 1025509-87-8)
- α-Hydroxy olopatadine (CAS 1628639-06-4)
- Cholecystokinin, CCK Tetrapeptide (30-33) (CAS 35144-91-3)
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