Arginine Impurity 2 CAS 89531-99-7
| CAS No. | 89531-99-7 |
| Molecular Formula | C6H11N3O2 |
| Molecular Weight | 157.17 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Arginine 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.
CATO supplies Arginine Impurity 2 (CAS 89531-99-7), a pharmacopoeial impurity reference standard (molecular formula C6H11N3O2, MW 157.17 g/mol) used for the identification and quantification of trace impurities in APIs.
Arginine Impurity 2 (C6H11N3O2) contains an amino-acid-derived structure, 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 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).
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.
Physical & Chemical Properties
| Molecular Formula | C6H11N3O2 |
| Molecular Weight | 157.17 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 3 |
Related Arginine Standards
Recommended Standards
- (E)-5-guanidinopent-2-enoic acid (CAS 2408930-69-6)
- N-Nitroso Revefenacin impurity 101 (CAS 1254360-38-7)
- Ozanimod Impurity 2 (CAS 60899-34-5)
- Pimavanserin impurity 56 (CAS CATO-C4X-193856)
- Bilastine Impurity 53 (CAS CATO-C4X-225353)
- Olaparib Impurity 20 (CAS CATO-C4X-113520)
- Ketoconazole EP Impurity A (and enantiomer) (CAS 254912-63-5)
- 2-(4-((Isopropyl(methyl)amino)methyl)piperidin-1-yl)acetic acid (CAS 1353966-48-9)
- Fudosteine Impurity 26 (CAS 50727-79-2)
- 3,3-Dimethylpiperidin-4-amine dihydrochloride (CAS 635732-41-1)
- (E/Z)-1,2-DIbromo-1,2-difluoroethylene (CAS 359-21-7)
- 2-(6-Amino-5-(difluoromethyl)-3-fluoropyridin-2-yl)acetonitrile (CAS 1804485-62-8)
- tert-Butyl 2-(3-nitrophenoxy)acetate (CAS 138563-69-6)
- Heptapeptide-6 (CAS CATO-CPTD788823)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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