Calcipotriol Impurity 17 CAS 115540-28-8
| CAS No. | 115540-28-8 |
| Molecular Formula | C40H72O2Si2 |
| Molecular Weight | 641.17 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 Calcipotriol Impurity 17.
CATO supplies Calcipotriol Impurity 17 (CAS 115540-28-8), a pharmacopoeial impurity reference standard (molecular formula C40H72O2Si2, MW 641.17 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Calcipotriol Impurity 17 (C40H72O2Si2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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.
CATO manufactures Calcipotriol Impurity 17 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 | C40H72O2Si2 |
| Molecular Weight | 641.17 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
Related Calcipotriol Standards
- Calcipotriol Impurity 51 (CAS 910133-69-6)
- Calcipotriol Impurity 10 (CAS 112849-27-1)
- Calcipotriol EP Impurity F (CAS 112875-61-3)
- Calcipotriol Impurity 18 (CAS 2229745-37-1)
- Calcipotriol Impurity 11 (CAS 112849-17-9)
- Calcipotriol Impurity 29 (CAS CATO-C4X-122229)
- Calcipotriol Impurity 30 (CAS 115648-68-5)
- Calcipotriol Impurity 31 (CAS 866406-02-2)
Recommended Standards
- 4-(2-[3,5-Bis-(tert-butyl-dimethyl-silanyloxy)-2-methylene-cyclohexylidene]-ethylidene)-7a-methyl-1-(1,4,5-trimethyl-hex-2-enyl)-octahydro-indene (CAS 184851-16-9)
- Avatrombopag Impurity 100 (CAS CATO-C4X-2234100)
- (3S)-1,3-Bis-O-(tert-Butyldimethylsilyl)-3-hydroxy-5,6-trans-vitamin D2 (CAS 111594-58-2)
- (2R,3R,4R,5S)-3,4-bis((2,4-dichlorobenzyl)oxy)-2-(((2,4-dichlorobenzyl)oxy)methyl)-5-methoxytetrahydrofuran (CAS 1312805-10-9)
- Mirogabalin Impurity 183 (CAS CATO-C4X-2924183)
- Guaifenesin Impurity 5 (CAS 2049-21-0)
- Loxoprofen impurity 119 (CAS CATO-C4X-1488119)
- Lead(II) phthalate (CAS 57142-78-6)
- 3-cyclopropyl-1-(2-fluorophenyl)-6-isopropyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 1018164-70-9)
- 2-Bromobenzylamine (CAS 3959-05-5)
- 5-Isopropyl-3-methyl-2-(methylthio)pyrazine (CAS 99784-22-2)
- 2-Dodecyltetradecanoic Acid (CAS 24251-98-7)
- (3-(N,N-Dipropylsulfamoyl)phenyl)boronic acid (CAS 1449145-31-6)
- Insulin Degludec Impurity 24 (CAS CATO-C4X-215724)
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