Semaglutide impurity 37 CAS CATO-C4X-222637
| CAS No. | CATO-C4X-222637 |
| Molecular Formula | C42H51N5O8 |
| Molecular Weight | 753.88 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 753.88 g/mol gives Semaglutide impurity 37 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Semaglutide impurity 37 (CAS CATO-C4X-222637), a pharmacopoeial impurity reference standard (molecular formula C42H51N5O8, MW 753.88 g/mol) used for the identification and quantification of trace impurities in APIs.
Semaglutide impurity 37 (C42H51N5O8) contains a nitrogen-containing heterocyclic scaffold, an amide 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), Semaglutide 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 | C42H51N5O8 |
| Molecular Weight | 753.88 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) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
Related Semaglutide Standards
- Semaglutide impurity 290 (CAS CATO-C4X-2226290)
- Semaglutide impurity 269 (CAS CATO-C4X-2226269)
- Semaglutide impurity 277 (CAS CATO-C4X-2226277)
- Semaglutide Impurity 130 (CAS 1188328-40-6)
- Semaglutide impurity 39 (CAS CATO-C4X-222639)
- Semaglutide impurity 36 (CAS CATO-C4X-222636)
- Semaglutide Impurity 16 (CAS CATO-C4X-222616)
- Semaglutide impurity 67 (CAS CATO-C4X-222667)
Recommended Standards
- Rifaximin EP Impurity F (CAS 14487-05-9)
- H-Phe-Phe-Phe-Phe-Phe-OH (CAS 65757-10-0)
- Flomoxef Impurity 66 (CAS CATO-C4X-138266)
- 4-((1S,2R)-5-cyano-5-(4-fluorophenyl)-1-((4-fluorophenyl)amino)-2-((S)-2-oxo-4-phenyloxazolidine-3-carbonyl)-5-((trimethylsilyl)oxy)pentyl)phenyl pivalate (CAS 1232148-24-1)
- Efinaconazole Impurity 38 (CAS CATO-C4X-124338)
- Nifuratel Impurity 9 (CAS 14359-97-8(free base))
- Landiolol Impurity 130 (CAS CATO-C4X-2621130)
- (4-Chlorophenyl)methyl N-[4,6-dimethyl-3-(1H-pyrrol-1-yl)thieno[2,3-b]pyridin-2-yl]carbamate (CAS 866039-17-0)
- (R)-Oct-1-en-3-ol (CAS 3687-48-7)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(3,5-bis(trifluoromethyl)phenyl)butanoic acid (CAS 1260613-48-6)
- 3-Hydroxycyclohex-1-enecarboxylic acid (CAS 127943-85-5)
- (Z)-2,4,4,4-tetrafluorobut-2-en-1-ol (CAS 91600-37-2)
- Vinpocetine Impurity 24 (CAS 52341-36-3)
- Tirzepatide Impurity 18 (CAS CATO-C4X-324018)
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