Cefprozil EP Impurity B Hydrochloride CAS 78144-01-1
| CAS No. | 78144-01-1 |
| Molecular Formula | C16H17N3O5S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Cefprozil EP Impurity B Hydrochloride is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Cefprozil EP Impurity B Hydrochloride (CAS 78144-01-1) is a high-purity analytical reference standard with the molecular formula C16H17N3O5SHCl and a molecular weight of 399.85 g/mol.
Structurally, Cefprozil EP Impurity B Hydrochloride (C16H17N3O5SHCl) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 399.85 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C16H17N3O5S HCl |
| Molecular Weight | 399.85 g/mol |
| Purity | 97%+ |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Cefprozil Standards
- Cefprozil Δ3 Isomer (CAS 1000980-59-5)
- Cefprozil EP Impurity D (CAS 106447-44-3)
- Cefprozil EP Impurity F (CAS 107937-01-9)
- Cefprozil (2S)-Isomer (CAS 110764-35-7)
- Cefprozil (E)-Isomer monohydrate (CAS 111900-24-4)
- Cefprozil (Z)-Isomer monohydrate (CAS 114876-72-1)
- Cefprozil Impurity 46 (CAS 120709-09-3)
- Cefprozil Monohydrate (CAS 121123-17-9)
Recommended Standards
- 1,1'-Bis(di-tert-butylphosphino)ferrocene 84680-95-5 1,1'-BIS(DI-T-BUTYLPHOSPHINO)FERROCENE;1,1'-BIS(DI-TERT-BUTYLPHOSPHINO)FERROCENE;1,1'-BIS[BIS(1,1-DIMETHYLETHYL)PHOSPHINO]FERROCENE;BIS[(DI-TERT-BUTYLPHOSPHINO)CYCLOPENTADIENYL]IRON;DBTPF GC10032 (CAS 84680-95-5)
- 2,6-Diisopropylphenylimido neophylidenemolybdenum(VI) bis(trifluoromethanesulfonate)dimethoxyethane adduct (CAS 126949-63-1)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (3-cyclobutylfuran-2-yl)boronate (CAS 2223043-55-6)
- 3-Methyl-4-(methylsulfonyl)-1H-pyrrole-2-carboxylic acid (CAS 2730025-90-6)
- (R)-3-(2,5-Dimethoxybenzyl)piperazin-2-one (CAS 1240582-74-4)
- Trimethylsilyl 2,3,3,3-tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)propanoate (CAS 152718-74-6)
- Methyl 4-aminotetrahydro-2H-pyran-4-carboxylate oxalate (CAS 1400644-84-9)
- 6-(Benzylcarbamoyl)picolinic acid (CAS 679398-19-7)
- rel-(1R,5S,6r)-3,3-difluorobicyclo[3.1.0]hexane-6-carboxylic acid (CAS 1447942-39-3)
- Des-Val23-Tirzepatide (CAS CATO-CPTD788950)
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