GST-HG171 Impurity 1 CAS CATO-C4X-30601
| CAS No. | CATO-C4X-30601 |
| Molecular Formula | C18H25F3N2O4 |
| Molecular Weight | 390.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures GST-HG171 Impurity 1 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies GST-HG171 Impurity 1 (CAS CATO-C4X-30601), a pharmacopoeial impurity reference standard (molecular formula C18H25F3N2O4, MW 390.40 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, GST-HG171 Impurity 1 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 390.40 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C18H25F3N2O4 |
| Molecular Weight | 390.40 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- Vericiguat Impurity 25 (CAS CATO-C4X-289625)
- GST-HG171 Impurity 8 (CAS CATO-C4X-30608)
- Flibanserin (CAS 167933-07-5)
- Falecalcitriol Impurity 1 (CAS 2454249-03-5)
- Propafenone Impurity 25 (CAS CATO-C4X-132225)
- Empagliflozin Impurity 128 (CAS CATO-C4X-1065128)
- Oseltamivir Impurity 34 (CAS CATO-C4X-172034)
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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