α-Conotoxin El, Conus ermineus CAS 170663-33-9
| CAS No. | 170663-33-9 |
| Molecular Formula | C83H125N27O27S5 |
| Molecular Weight | 2093.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies α-Conotoxin El, Conus ermineus (CAS 170663-33-9), a certified reference material (molecular formula C83H125N27O27S5, MW 2093.37 g/mol) for analytical method development and quality control.
Based on its molecular formula C83H125N27O27S5, α-Conotoxin El, Conus ermineus contains a nitrogen-containing heterocyclic scaffold, 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 2093.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C83H125N27O27S5 |
| Molecular Weight | 2093.37 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) | 35.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2005 |
| Nitrogen Atoms | 27 |
| Sulfur Atoms | 5 |
Related Conotoxin Standards
- Mu-conotoxin (CAS 936616-33-0)
- m-Conotoxin GIIIA (CAS 86394-16-3)
- μ-Conotoxin GIIIA (CAS 129129-65-3)
- w-Conotoxin MVIIA (CAS 150770-63-1)
- μ-Conotoxin GIIIB (CAS 140678-12-2)
- α-Conotoxin MI (CAS 88217-10-1)
- 76862-65-2 Conotoxin GI Conotoxin G I Myotoxin from Conus geographus venom alpha-Conotoxin G I alpha-Conotoxin G I (reduced), cyclic (2-7),(3-13)-bis(disulfide) (CAS 76862-65-2)
- 115797-06-3 Conotoxin SI Conotoxin GI (reduced), 1-L-isoleucine-9-L-proline-10-L-lysine- alpha-Conotoxin SI (CAS 115797-06-3)
Recommended Standards
- Lys(Dabsyl)-(Asn670,Leu671)-Amyloid b/A4 Protein Precursor770-Gln-Lucifer Yellow (M-2570.0500) (CAS 1802078-42-7)
- ACTH (1-17) (CAS 7266-47-9)
- Sucralfate (Technical Grade) (CAS 54182-58-0)
- Sugammadex Impurity 38 (CAS CATO-C4X-190638)
- Methyl 1H-imidazole-1-carbonylcarbamimidate (CAS 143207-27-6)
- 3-((3,4-Dichlorobenzyl)thio)-N-(2,4-difluorophenyl)thiophene-2-carboxamide (CAS 251096-85-2)
- 5-(3-((tert-Butoxycarbonyl)amino)propoxy)pentyl 4-methylbenzenesulfonate (CAS 1818885-78-7)
- 6-Bromo-7-methoxy-2,3-dihydro-1H-inden-1-one (CAS 1273599-65-7)
- 1-(3-(o-Tolyloxy)propyl)pyrrolidine (CAS 864409-16-5)
- 4-(2,4-Dichlorobenzoyl)-1H-pyrrole-2-carboxamide (CAS 339023-64-2)
- Chloromethanol (CAS 15454-33-8)
- 4-(2-Methyl-pyrimidin-4-ylmethyl)-octahydro-isoindole (CAS 1361111-40-1)
- thieno[3,2-b]pyridine (CAS 272-67-3)
- HA Peptide (CAS 92000-76-5)
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