RSL3 CAS 1219810-16-8
| CAS No. | 1219810-16-8 |
| Molecular Formula | C23H21ClN2O5 |
| Molecular Weight | 440.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 440.88 g/mol gives RSL3 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies RSL3 (CAS 1219810-16-8), a certified reference material (molecular formula C23H21ClN2O5, MW 440.88 g/mol) for analytical method development and quality control.
Structurally, RSL3 (C23H21ClN2O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 440.88 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures RSL3 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.
Physical & Chemical Properties
| Molecular Formula | C23H21ClN2O5 |
| Molecular Weight | 440.88 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
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- CC-885 (CAS 1010100-07-8)
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- 2,4-Difluoro-6-methylbenzyl bromide (CAS 1803735-07-0)
- Octyl 2-acetamido-2-deoxy-β-D-glucopyranosyl-(1-2)-α-D-mannopyranosyl-(1-2)-β-D-glucopyranoside (CAS 1268248-67-4)
- Phosphoric acid, bis(1,1-dimethylethyl) 2-hydroxyethyl ester (CAS 54857-40-8)
- tert-Butyl 6,8-dioxo-2,5-diazaspiro[3.5]nonane-2-carboxylate (CAS 1105662-95-0)
- Uridine Impurity 13 (CAS 1221169-70-5)
- Semaglutide impurity 43 (CAS CATO-C4X-222643)
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