Fovinaciclib Impurity 3 CAS CATO-C4X-33863
| CAS No. | CATO-C4X-33863 |
| Molecular Formula | C27H35N7O2S |
| Molecular Weight | 521.68 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Fovinaciclib Impurity 3.
CATO supplies Fovinaciclib Impurity 3 (CAS CATO-C4X-33863), a pharmacopoeial impurity reference standard (molecular formula C27H35N7O2S, MW 521.68 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Fovinaciclib Impurity 3 (C27H35N7O2S) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C27H35N7O2S |
| Molecular Weight | 521.68 g/mol |
| Purity | ≥95% |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
| Sulfur Atoms | 1 |
Related Fovinaciclib Standards
- Fovinaciclib (CAS 2146171-49-3)
- Fovinaciclib Impurity 4 (CAS CATO-C4X-33864)
- Fovinaciclib Impurity 6 (CAS CATO-C4X-33866)
- Fovinaciclib Impurity 1 (CAS CATO-C4X-33861)
- Fovinaciclib Citrate Impurity 7 (CAS CATO-C4X-33867)
- Fovinaciclib Impurity 2 (CAS CATO-C4X-33862)
- Fovinaciclib Impurity 5 (CAS CATO-C4X-33865)
Recommended Standards
- Aprepitant impurity 29 (CAS CATO-C4X-237929)
- 2-Dihydro Boceprevir (CAS 394735-28-5)
- 1-Oleoyl-sn-glycero-3-phosphocholine (CAS 19420-56-5)
- Dopamine Impurity 46 (CAS CATO-C4X-190846)
- Palbociclib Impurity 185 (CAS CATO-C4X-1125185)
- Capecitabine EP Impurity C (CAS 161599-46-8)
- Cenobamate impurity 9 (CAS CATO-C4X-24169)
- 1-Methylpyrene-2,7-diol (CAS 950701-49-2)
- 3a,12-a-Dihydroxy-7-diazirdinecholanic Acid (CAS 86933-63-3)
- Methyl 3-[(1,2,3-thiadiazol-4-ylcarbonyl)amino]-2-thiophenecarboxylate (CAS 478261-72-2)
- 6-Bromo-2-ethyl-3,4-dihydroisoquinolin-1(2H)-one (CAS 879887-28-2)
- (3,5-Dimethylpyridin-2-yl)methanamine (CAS 780801-80-1)
- 2-((4-Chlorobenzyl)thio)-3-methylthieno[3,2-d]pyrimidin-4(3H)-one (CAS 339105-67-8)
- 69558-55-0 O3Y80ZF13F Thymopentin Thymopentin [USAN:INN:BAN] L-Tyrosine, N-(N-(N-(N2-L-arginyl-L-lysyl)-L-alpha-aspartyl)-L-valyl)- L-Tyrosine, N-(N-(N-(N(sup 2)-L-arginyl-L-lysyl)-L-alpha-aspartyl)-L-valyl)- Thymopentine [French] Thymopentinum [Latin] Timopentina [Spanish] Thymopoietin 32-36 TP-5 Thymopoietin pentapeptide ORF-15244 Thymopentine Thymopentinum Timopentina ORF 15244 UNII-O3Y80ZF13F (CAS 69558-55-0)
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