Atracurium Impurity 33 CAS CATO-C4X-185033
| CAS No. | CATO-C4X-185033 |
| Molecular Formula | C56H76N2O14 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Atracurium Impurity 33 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 1158.39 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Atracurium Impurity 33 (CAS CATO-C4X-185033) is a certified pharmaceutical impurity reference standard with the molecular formula C56H76N2O14C6H5O3S and a molecular weight of 1158.39 g/mol.
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), Atracurium Impurity 33 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 | C56H76N2O14 2*C6H5O3S |
| Molecular Weight | 1158.39 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) | 23.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Atracurium Standards
- Atracurium Impurity U (CAS .)
- Atracurium Impurity 82 (CAS 1075726-70-3)
- Atracurium Impurity 25 (CAS 1075726-86-1)
- Atracurium Impurity 6 (CAS 1075726-91-8)
- Atracurium Impurity 43 (CAS 1075727-00-2)
- Atracurium Impurity 85 (CAS 1075727-02-4)
- Atracurium Impurity 40 (CAS 109717-73-9)
- Atracurium Impurity 7 (CAS 1100676-15-0)
Recommended Standards
- Galanthamine Impurity 25 (CAS CATO-C4X-143525)
- Avibactam Impurity 71 (CAS CATO-C4X-134871)
- Remdesivir Impurity 32 (CAS CATO-C4X-210032)
- Boc-d-thyroxine (CAS 89624-64-6)
- 5-(4-Chlorophenyl)-1-(2-methoxyphenyl)-1H-imidazole-2-thiol (CAS 793678-90-7)
- Tert-butyl (E)-(1-(hydroxyimino)-3-phenylpropan-2-yl)carbamate (CAS 1033194-57-8)
- 2-(4-Fluoro-3,5-dimethylphenyl)ethane-1-thiol (CAS 1443311-24-7)
- N-(2,2-Dimethoxyethyl)-1-[(4-methoxyphenyl)methyl]-1H-1,2,3-triazole-4-carboxamide (CAS 1708079-77-9)
- 2-Amino-N-methyl-N-(pyridin-4-ylmethyl)propanamide (CAS 1218487-08-1)
- Semaglutide impurity 208 (CAS CATO-C4X-2226208)
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