Pilocarpine Impurity 9 CAS CATO-C4X-24019
| CAS No. | CATO-C4X-24019 |
| Molecular Formula | C8H10O4 |
| Molecular Weight | 170.16 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Pilocarpine Impurity 9 (C8H10O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. 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).
CATO supplies Pilocarpine Impurity 9 (CAS CATO-C4X-24019), a pharmacopoeial impurity reference standard (molecular formula C8H10O4, MW 170.16 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
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.
Physical & Chemical Properties
| Molecular Formula | C8H10O4 |
| Molecular Weight | 170.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Pilocarpine Standards
- Pilocarpine Impurity 6 (CAS CATO-C4X-24016)
- Pilocarpine Impurity 8 (CAS CATO-C4X-24018)
- Pilocarpine Impurity 5 (CAS CATO-C4X-24015)
- Pilocarpine Impurity 7 (CAS CATO-C4X-24017)
- Pilocarpine (CAS 92-13-7)
- Pilocarpine Impurity 10 (CAS 2833-30-9)
- Pilocarpine Impurity 18 (CAS CATO-C4X-240118)
- Pilocarpine Impurity 22 (CAS CATO-C4X-240122)
Recommended Standards
- Norepinephrine Impurity 42 (CAS 28822-73-3)
- Penicillic acid (CAS 90-65-3)
- Terbutaline Impurity 25 (CAS 2352882-26-7)
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- Ketoprofen Impurity 37 (CAS 18908-59-3)
- Ambroxol Impurity 35 (CAS CATO-C4X-108535)
- Teriparatide Impurity 6 (CAS CATO-C4X-21856)
- 2-amino-7-(2-fluoroethyl)-3,7-dihydro-6H-purin-6-one (CAS 125973-91-3)
- Tert-butyl ((1-oxa-7-azaspiro[3.5]Nonan-2-yl)methyl)carbamate (CAS 2306270-44-8)
- Methyl 5-(tert-butoxycarbonylamino)nicotinate (CAS 168618-38-0)
- 2-((4-Amino-6-chloro-1,3,5-triazin-2-yl)amino)ethanol (CAS 64887-39-4)
- Magnesium sulfate hexahydrate puriss. p.a., ≥99.0% (CAS 17830-18-1)
- 2-(2,4-Dichlorobenzoyl)-5-(1,3-dioxolan-2-yl)thiophene (CAS 898778-88-6)
- Semaglutide impurity 277 (CAS CATO-C4X-2226277)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com