Cholesterol-d7 CAS 83199-47-7
| CAS No. | 83199-47-7 |
| Molecular Formula | - |
| Molecular Weight | 393.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Cholesterol-d7 (CAS 83199-47-7), molecular formula C27H39D7O and molecular weight 393.70 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Cholesterol-d7 (C27H39D7O) contains deuterium isotope labeling, a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.5, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 393.70 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
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 | C27H39D7O |
| Molecular Weight | 393.70 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
Related Cholesterol Standards
- Cholesterol-26,26,26,27,27,27-d6 (CAS 60816-17-3)
- Cholesterol-d6 (CAS 92543-08-3)
- Cholesterol-23,24,25,26,27- (CAS 150044-24-9)
- Cholesterol-25,26,26,26-d4 (CAS 956029-28-0)
- Cholesterol-18O (CAS 59613-51-3)
- Cholesterol-3,4-13C2 (CAS 78887-48-6)
- Cholesterol Impurity 12 (CAS 1474-14-2)
- Cholesterol-3-d1 (CAS 51467-57-3)
Recommended Standards
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- 1,2,3,5-Tetrabromobenzene (CAS 634-89-9)
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- 1,2,4,5-Tetrabromobenzene (CAS 636-28-2)
- (2E)-3-{4-[(2-chloro-6-fluorophenyl)methoxy]phenyl}-N-[3-(dimethylamino)propyl]prop-2-enamide (CAS 477870-59-0)
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- 5-(2,4-Dimethylphenyl)-1,3,4-thiadiazol-2-amine (CAS 183882-25-9)
- 1-[7-[(E)-2-(Dimethylamino)vinyl]-2-(trifluoromethyl)-[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]ethanone (CAS 1374510-76-5)
- (R)-2-amino-2-(4-aminophenyl)ethan-1-ol (CAS 1213072-74-2)
- Thiazol-2-yl(4-(trifluoromethoxy)phenyl)methanone (CAS 1443340-39-3)
- Tert-butyl (2S,3R)-3-(hydroxymethyl)-2-methylazetidine-1-carboxylate (CAS 2088511-47-9)
- Liraglutide(10-22)TFA Salt (CAS CATO-C4X-199211)
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