Colesevelam impurity 2 CAS 33968-67-1
| CAS No. | 33968-67-1 |
| Molecular Formula | C9H23N2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Colesevelam impurity 2 (CAS 33968-67-1) is a certified pharmaceutical impurity reference standard with the molecular formula C9H23N2HBrBr and a molecular weight of 320.11 g/mol.
Colesevelam impurity 2 (C9H23N2HBrBr) contains bromine substitution. Halogen substitution raises its density and boiling point; 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), Colesevelam impurity 2 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 | C9H23N2 HBr Br |
| Molecular Weight | 320.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | -2.0 |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Colesevelam Standards
- Colesevelam (CAS 182815-43-6)
- Colesevelam Hydrochloride (CAS 182815-44-7)
- Colesevelam Impurity 5 (CAS 21291-99-6)
- Colesevelam Amino Dihexylquat Impurity HBr (Amino Dihexyltrimethylammonium Bromide HBr) (CAS 2170771-70-5)
- Colesevelam Decyl Aminoquat Impurity HBr (6-Decylaminohexyl Trimethylammonium Bromide HBr) (CAS 2247938-20-9)
- Colesevelam Bromoquat Impurity (CAS 32765-81-4)
- Colesevelam impurity 5 (CAS 359436-95-6)
- Colesevelam Hydroxyquat Impurity Chloride (CAS 676578-21-5)
Recommended Standards
- Bazedoxifene Acetate Impurity 9 (CAS 104599-10-2)
- Tirzepatide Impurity 21 X TFA Salt (CAS CATO-C4X-324021)
- Olaparib Impurity 113 (CAS CATO-C4X-1135113)
- Travoprost Impurity 60 (CAS 64998-32-9)
- N-(4-Cyclohexylphenyl)-2-[4-(4-fluorophenyl)piperazin-1-yl]acetamide (CAS 882082-17-9)
- 1-(3-Hydroxybutyl)pyrrolidin-2-one (CAS 73486-66-5)
- 6-Chloro-N-(2,2-diethoxyethyl)pyrimidin-4-amine (CAS 55662-69-6)
- 5-(Benzofuran-2-yl)-N-benzyl-6H-1,3,4-thiadiazin-2-amine (CAS 851458-34-9)
- 3,5-Bis-benzyloxy-4-bromobenzoic acid tert-butyl ester (CAS 158980-57-5)
- endo-Ser39-Tirzepatide (CAS CATO-CPTD788935)
Why CATO?
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