Calcitriol Impurity 35 CAS CATO-C4X-151035
| CAS No. | CATO-C4X-151035 |
| Molecular Formula | C39H72O2Si2 |
| Molecular Weight | 629.16 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Calcitriol Impurity 35 is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Calcitriol Impurity 35 (CAS CATO-C4X-151035, C39H72O2Si2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Calcitriol Impurity 35 (C39H72O2Si2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 629.16 g/mol, it falls into the high-molecular-weight range. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C39H72O2Si2 |
| Molecular Weight | 629.16 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Calcitriol Standards
- Calcitriol impurity 01 (CAS 2239312-26-4)
- Calcitriol impurity 39 (CAS 161885-78-5)
- Calcitriol Impurity 14 (CAS 140710-98-1)
- Calcitriol Impurity 17 (CAS 1883417-56-8)
- Calcitriol Impurity 8 (CAS 140710-96-9)
- Calcitriol Impurity 13 (CAS 169900-32-7)
- Calcitriol Impurity 18 (CAS 147125-21-1)
- Calcitriol Impurity 19 (CAS CATO-C4X-151019)
Recommended Standards
- 2,7-Dichloro-4,5-bis(1,3,2-dithiarsolan-2-yl)-3,6-dihydroxy-9H-xanthen-9-one (CAS 439791-19-2)
- Alfacalcidol impurity 01 (CAS 112670-85-6)
- Elsulfavirine (CAS 868046-19-9)
- Silane, [[(1α,3β,5Z,7E)-9,10-secocholesta-5,7,10(19)-triene-1,3-diyl]bis(oxy)]bis[(1,1-dimethylethyl)dimethyl- (CAS 108887-35-0)
- Biapenem impurity 15 (CAS CATO-C4X-227315)
- Lansoprazole Impurity 24 (CAS 168167-49-5)
- Levodopa Impurity 24 (CAS CATO-C4X-167624)
- 2-Bromo-1-(3,4-dimethylphenyl)ethan-1-one hydrobromide (CAS 1258652-64-0)
- Atropine Impurity 58 (CAS 1047974-95-7)
- (R)-2-(((4-((2,2-Dimethyl-1,3-dioxan-5-yl)methoxy)-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazole (CAS 955095-45-1)
- 2-(Methoxycarbonyl)imidazo[1,2-a]pyridine-5-carboxylate (CAS 1113102-07-0)
- 5-(tert-Butyl)-4,5-dihydroisoxazol-5-ol (CAS 61184-59-6)
- Dapagliflozin Impurity 29 (CAS CATO-C4X-113829)
- Semaglutide Impurity 122 (CAS CATO-C4X-2226122)
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