Flomoxef Impurity 37 CAS 68314-38-5
| CAS No. | 68314-38-5 |
| Molecular Formula | C30H27ClN2O6 |
| Molecular Weight | 547.00 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO supplies Flomoxef Impurity 37 (CAS 68314-38-5), a pharmacopoeial impurity reference standard (molecular formula C30H27ClN2O6, MW 547.00 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Flomoxef Impurity 37 (C30H27ClN2O6) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 18.0, corresponding to approximately 18 ring(s) or double-bond equivalent(s). With a molecular weight of 547.00 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Flomoxef Impurity 37 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C30H27ClN2O6 |
| Molecular Weight | 547.00 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Flomoxef Standards
- Flomoxef Impurity 5 (CAS 134237-56-2)
- Flomoxef Impurity 3 (CAS 103057-61-0)
- Flomoxef Impurity 49 (CAS CATO-C4X-138249)
- Flomoxef Impurity 1 (CAS 68313-94-0)
- Flomoxef Impurity 53 (CAS CATO-C4X-138253)
- Flomoxef Impurity 28 (CAS CATO-C4X-138228)
- Flomoxef Impurity 15 (CAS CATO-C4X-138215)
- Flomoxef Impurity N2 (CAS 91177-27-4)
Recommended Standards
- 16,16'-Disulfanediylbis(hexadecan-1-ol) (CAS 112141-28-3)
- benzhydryl (7R)-3-(chloromethyl)-7-methoxy-7-(4-methylbenzamido)-8-oxo-5-oxa-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate (CAS CATO-C4X-138257)
- 2-(7-Amino-4-Methyl-2-Oxochromen-3-yl-N-[2-[7-Chloro-5-(2-Fluorophenyl)-2-Oxo-3H-1,4-Benzodiazepin-1-Yl]Ethyl]Acetamide (CAS 134282-95-4)
- Ertugliflozin impurity 12 (CAS CATO-C4X-301112)
- Upadacitinib Impurity 2 (CAS 1201187-46-3)
- Clindamycin Palmitate Impurity 108 (CAS CATO-C4X-1341108)
- Sermorelin Impurity 2 (CAS CATO-C4X-23422)
- 2-tert-Butyl-6-chlorobenzoxazole-7-sulfonyl chloride (CAS 361392-60-1)
- Homo Egonol -β-D-Glucoside (CAS 325791-19-3)
- 5-Amino-3-(carboxymethyl)-4-oxo-1,4,5,6-tetrahydropyridine-2-carboxylic acid (CAS 84986-74-3)
- Benzyl (2-methyl-1-(phenylsulfonyl)propyl)carbamate (CAS 439095-25-7)
- 2-Bromo-3,5-difluorophenol (CAS 325486-43-9)
- 4,4,5,5-Tetramethyl-2-(4-methyl-3-nitrophenyl)-1,3,2-dioxaborolane (CAS 1072945-06-2)
- Semaglutide Impurity 11 (CAS CATO-C4X-222611)
Why CATO?
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