Serpentine chloride CAS 55322-91-3
| CAS No. | 55322-91-3 |
| Molecular Formula | C21H21N2O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Serpentine chloride 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.
CATO supplies Serpentine chloride (CAS 55322-91-3), a certified reference material (molecular formula C21H21N2O3Cl, MW 384.86 g/mol) for analytical method development and quality control.
The molecular framework of Serpentine chloride (C21H21N2O3Cl) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C21H21N2O3 Cl |
| Molecular Weight | 384.86 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Serpentine Standards
Recommended Standards
- 5,7-Dichloro-8-hydroxyquinoline-2-carbaldehyde (CAS 24010-07-9)
- ER 27319 Maleate (CAS 1204480-26-1)
- N-(Prop-2-yn-1-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzamide (CAS 1218790-49-8)
- Erythromycin C reduced derivatives (CAS CATO-C4X-100169)
- Dronedarone Impurity 49 (CAS CATO-C4X-109249)
- OSI-930 (CAS 728033-96-3)
- 1-(p-Tolyl)imidazolidine-2,4-dione (CAS 32549-31-8)
- 4-Chloro-1-methoxy-2-nitro-8,9-dihydro-5H-benzo[7]annulen-7(6H)-one (CAS 1354545-56-4)
- tert-Butyl 4-(2-(1-aminocyclohexyl)acetyl)piperazine-1-carboxylate (CAS 1310381-26-0)
- [14-31]-Semaglutide (CAS CATO-C4X-2226262)
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