Cefmenoxime Impurity 5 CAS CATO-C4X-14775
| CAS No. | CATO-C4X-14775 |
| Molecular Formula | C16H17N9O6S3 |
| Molecular Weight | 527.56 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Cefmenoxime Impurity 5.
CATO supplies Cefmenoxime Impurity 5 (CAS CATO-C4X-14775), a pharmacopoeial impurity reference standard (molecular formula C16H17N9O6S3, MW 527.56 g/mol) used for the identification and quantification of trace impurities in APIs.
Cefmenoxime Impurity 5 (C16H17N9O6S3) 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.
As a certified reference material (CRM), Cefmenoxime Impurity 5 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 | C16H17N9O6S3 |
| Molecular Weight | 527.56 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 9 |
| Sulfur Atoms | 3 |
Related Cefmenoxime Standards
- Cefmenoxime Impurity 4 (CAS CATO-C4X-14774)
- Cefmenoxime Impurity 2 (CAS 66340-45-2)
- Cefmenoxime Impurity 3 (CAS 126747-52-2)
- Cefmenoxime Impurity 6 (CAS CATO-C4X-14776)
- Cefmenoxime Impurity 11 (CAS CATO-C4X-147711)
- Cefmenoxime Impurity 10 (CAS CATO-C4X-147710)
- Cefmenoxime Impurity 40 (CAS 21566-74-5)
- Cefmenoxime Impurity 13 (CAS CATO-C4X-147713)
Recommended Standards
- 1,3-Pentadiene, homopolymer (CAS 25212-15-1)
- NA-(((9H-fluoren-9-yl)methoxy)carbonyl)-Np-(((4-methoxybenzyl)oxy)methyl)-L-histidine (CAS 1327338-56-6)
- [5-(4-Methanesulfonylphenyl)-2-methyl-1-[3-(trifluoromethyl)phenyl]-1H-pyrrol-3-yl]methyl 4-methylbenzoate (CAS 338749-83-0)
- 5'-O-Dimethoxytrityl-N4-Acetyl-cytidine (CAS 31085-52-6)
- Budesonide EP Impurity I (CAS 113930-13-5)
- Frovatriptan Impurity 2 (CAS CATO-C4X-30772)
- Dotinurad Impurity 170 (CAS 50910-60-6)
- Thieno[2,3-b]pyridine-2-carboxaldehyde (CAS 53174-98-4)
- 5-Chloro-2-methoxyphenethyl ethyl oxalate (CAS 1443353-27-2)
- 5-Diethylaminomethyl-2-phenyl-furan-3-carboxylic acid hydrochloride (CAS 435341-94-9)
- GSK 319347A (CAS 862812-98-4)
- 2-(2-Ethynylphenyl)acetamide (CAS 1301714-56-6)
- 120280-99-1 2-(2-Methoxybenzoyl)-3-methylpyridine MFCD13152768 (CAS 120280-99-1)
- Semaglutide Impurity 160 (x TFA Salt) (CAS CATO-C4X-2226160)
Why CATO?
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