Calcipotriol Impurity 12 CAS 129831-99-8
| CAS No. | 129831-99-8 |
| Molecular Formula | C27H42O3 |
| Molecular Weight | 414.62 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C27H42O3, Calcipotriol Impurity 12 contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 414.62 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Calcipotriol Impurity 12 (CAS 129831-99-8), a pharmacopoeial impurity reference standard (molecular formula C27H42O3, MW 414.62 g/mol) used for the identification and quantification of trace impurities in APIs.
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 | C27H42O3 |
| Molecular Weight | 414.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
Related Calcipotriol Standards
- Calcipotriol - Impurity E (CAS 112849-14-6)
- Calcipotriol Impurity 27 (CAS CATO-C4X-122227)
- Calcipotriol Impurity 21 (CAS 143032-85-3)
- Calcipotriol Impurity 35 (CAS CATO-C4X-122235)
- Calcipotriol Impurity 36 (CAS CATO-C4X-122236)
- Calcipotriol Impurity 20 (CAS 127516-23-8)
- Calcipotriol Impurity 22 (CAS 125732-36-7)
- Calcipotriol Impurity 37 (CAS CATO-C4X-122237)
Recommended Standards
- 309762-85-4 3-oxo-4-cholestenoic acid (CAS 309762-85-4)
- Yamogenin (CAS 512-06-1)
- Cholecalciferol impurity 18 (CAS 2227309-94-4)
- Tigogenone (CAS 470-07-5)
- Thiamine Nitrate EP Impurity G (CAS 1037-29-2)
- Finerenone Impurity 123 (CAS CATO-C4X-2880123)
- Enzalutamide Impurity 41 (CAS CATO-C4X-101641)
- 4-O-(6-O-[2-Acetamido-2-deoxy-b-D-glucopyranosyl]-b-D-galactopyranosyl)-D-glucopyranose (CAS 68665-69-0)
- 2-chloro-1-(8-oxabicyclo[3.2.1]octan-3-yl)ethanone (CAS 2573048-57-2)
- 3-Bromoimidazo[1,5-a]pyridine-1-carboxylic Acid (CAS 1119512-48-9)
- N-(3-amino-4-chlorophenyl)-2-ethoxyacetamide (CAS 954565-51-6)
- 2-(3-Isopropyl-1-methyl-1h-1,2,4-triazol-5-yl)propan-2-amine (CAS 1341494-34-5)
- 2-({[4-(1,1,1,3,3,3-hexafluoro-2-hydroxypropan-2-yl)phenyl]amino}methylidene)-2,3-dihydro-1H-indene-1,3-dione (CAS 1023531-54-5)
- Eosinophilotactic Peptide (CAS 61756-28-3)
Why CATO?
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