Trilaciclib Impurity 11 CAS 2170746-99-1
| CAS No. | 2170746-99-1 |
| Molecular Formula | C20H26N4O3S |
| Molecular Weight | 402.51 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Trilaciclib Impurity 11 (C20H26N4O3S) contains a steroid core, an amide group, a sulfone 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Trilaciclib Impurity 11 (CAS 2170746-99-1) is a certified pharmaceutical impurity reference standard with the molecular formula C20H26N4O3S and a molecular weight of 402.51 g/mol.
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.
As a certified reference material (CRM), Trilaciclib Impurity 11 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.
Physical & Chemical Properties
| Molecular Formula | C20H26N4O3S |
| Molecular Weight | 402.51 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Trilaciclib Standards
- Trilaciclib Impurity 1 (CAS 1374743-01-7)
- Trilaciclib (CAS 1374743-00-6)
- Trilaciclib impurity 15 (CAS CATO-C4X-304415)
- Trilaciclib Impurity 2 (CAS CATO-C4X-30442)
- Trilaciclib Impurity 16 (CAS CATO-C4X-304416)
- Trilaciclib Impurity 3 (CAS 2170747-01-8)
- Trilaciclib Impurity 13 (CAS CATO-C4X-304413)
- Trilaciclib Impurity 14 (CAS CATO-C4X-304414)
Recommended Standards
- Pioglitazone EP Impurity D (CAS 868754-41-0)
- 1β-Hydroxy Medroxy Progesterone 17-Acetate (CAS 1072923-65-9)
- Pioglitazone Hydrochloride EP Impurity D (CAS CATO-C4X-138339)
- 4-((2,6-Difluoro-4-pentylphenyl)ethynyl)-4'-propyl-1,1'-biphenyl (CAS 1149373-93-2)
- Oxymetazoline EP Impurity A HCl (CAS 1391053-50-1)
- Flurbiprofen Impurity 124 (CAS CATO-C4X-1444124)
- Posaconazole Impurity 143 (CAS 1428118-40-4)
- Ethyl (1S,3R,4S)-4-((tert-butoxycarbonyl)amino)-3-hydroxycyclohexane-1-carboxylate (CAS 1392745-27-5)
- (11aS)-3,7-Bis[3,5-bis(trifluoromethyl)phenyl]-10,11,12,13-tetrahydro-5-hydroxy-diindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin-5-oxide (CAS 1258327-07-9)
- 3-(4-Methoxyphenyl)isoxazole-5-carboxylic acid (CAS 618383-47-4)
- 2-((2S,3aS,6aS)-5-(tert-Butoxycarbonyl)hexahydro-2H-furo[2,3-c]pyrrol-2-yl)acetic acid (CAS 1445951-31-4)
- 2-Methyl-4,6-dinitrophenol-PFB (CAS 87001-92-1)
- Dapoxetine Impurity 16 (CAS 69888-75-1)
- Semaglutide impurity 91 (CAS CATO-C4X-222691)
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