| CAS No. | 56159-70-7 |
| Molecular Formula | C16H25ClO4 |
| Molecular Weight | 316.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
(1r)-9,21,26-trimethoxy-15-methyl-7,24-dioxa-15,31-diazaheptacyclo[23.6.2.23,6.18,12.014,19.018,23.028,32]hexatriaconta-3,5,8(34),9,11,18,20,22,25,27,32,35-dodecaen-22-ol(non-preferred name) 56159-70-7 KST-1A6045 (C16H25ClO4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, 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).
(1r)-9,21,26-trimethoxy-15-methyl-7,24-dioxa-15,31-diazaheptacyclo[23.6.2.23,6.18,12.014,19.018,23.028,32]hexatriaconta-3,5,8(34),9,11,18,20,22,25,27,32,35-dodecaen-22-ol(non-preferred name) 56159-70-7 KST-1A6045 (CAS 56159-70-7), molecular formula C16H25ClO4 and molecular weight 316.82 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), (1r)-9,21,26-trimethoxy-15-methyl-7,24-dioxa-15,31-diazaheptacyclo[23.6.2.23,6.18,12.014,19.018,23.028,32]hexatriaconta-3,5,8(34),9,11,18,20,22,25,27,32,35-dodecaen-22-ol(non-preferred name) 56159-70-7 KST-1A6045 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.
| Molecular Formula | C16H25ClO4 |
| Molecular Weight | 316.82 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Cl-containing |