Relugolix Impurity 167 CAS CATO-C4X-2429167
| CAS No. | CATO-C4X-2429167 |
| Molecular Formula | C20H26N4O6S |
| Molecular Weight | 450.51 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Relugolix Impurity 167 (CAS CATO-C4X-2429167), a pharmacopoeial impurity reference standard (molecular formula C20H26N4O6S, MW 450.51 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Relugolix Impurity 167 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 450.51 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C20H26N4O6S |
| Molecular Weight | 450.51 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Relugolix Standards
- relugolix Impurity 93 (CAS CATO-C4X-242993)
- Relugolix Impurity 30 (CAS CATO-C4X-242930)
- Relugolix Impurity 87 (CAS CATO-C4X-242987)
- Relugolix Impurity 90 (CAS CATO-C4X-242990)
- Relugolix Impurity 89 (CAS CATO-C4X-242989)
- Relugolix Impurity 63 (CAS CATO-C4X-242963)
- Relugolix Impurity 159 (CAS CATO-C4X-2429159)
- Relugolix Impurity 96 (CAS CATO-C4X-242996)
Recommended Standards
- Tazobactam Impurity 8 (CAS CATO-C4X-12058)
- Cediranib (CAS 288383-20-0)
- Tazobactam Impurity 7 (CAS CATO-C4X-12057)
- Methyl 4,6-O-benzylidene-2,3-di-O-pivaloyl-a-D-glucopyranoside (CAS 112317-67-6)
- Fluticasone Propionate EP Impurity B (CAS 948566-12-9)
- Vericiguat Impurity 98 (CAS 907165-30-4)
- SAR107375E Impurity 11 (CAS CATO-C4X-229911)
- Naphtho[1,8-cd][1,2,6]oxadiborinine-1,3-diol (CAS 1730-05-8)
- (3-(2-(Difluoromethoxy)phenyl)-1,2,4-oxadiazol-5-yl)methyl carbamimidothioate (CAS 1779132-99-8)
- 1-(7-Bromoimidazo[1,2-a]pyridin-3-yl)ethan-1-one (CAS 1784790-51-7)
- (R)-1-(Benzo[d][1,3]dioxol-5-yl)-2-bromoethan-1-ol (CAS 182621-74-5)
- n-(Pyridin-3-ylmethyl)heptan-4-amine (CAS 1042611-42-6)
- 2-((4-Isobutyramidophenyl)carbamoyl)benzoic acid (CAS 925168-82-7)
- Insulin Degludec Impurity 27 (CAS CATO-C4X-215727)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com