Halobetasol Propionate Impurity D CAS 66852-61-7
| CAS No. | 66852-61-7 |
| Molecular Formula | C25H31Cl2FO5 |
| Molecular Weight | 501.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Halobetasol Propionate Impurity D (CAS 66852-61-7), molecular formula C25H31Cl2FO5 and molecular weight 501.42 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C25H31Cl2FO5, Halobetasol Propionate Impurity D contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 501.42 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
CATO manufactures Halobetasol Propionate Impurity D 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 | C25H31Cl2FO5 |
| Molecular Weight | 501.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | F/Cl-containing |
Related Halobetasol Standards
- Halobetasol Impurity 5 (CAS 79861-38-4)
- Halobetasol Impurity 12 (CAS CATO-C4X-331412)
- Halobetasol Propionate (CAS 66852-54-8)
- Halobetasol Impurity 4 (CAS CATO-C4X-33144)
- Halobetasol Impurity 1 (CAS 84509-92-2)
- Halobetasol Impurity 11 (CAS CATO-C4X-331411)
- Halobetasol Impurity 3 (CAS 181527-42-4)
- Halobetasol Impurity 10 (CAS CATO-C4X-331410)
Recommended Standards
- 3-(3-((2,4-Dichlorobenzyl)oxy)phenyl)-1-(mesitylsulfonyl)-1H-pyrazole (CAS 477712-75-7)
- (5-((3,5-Dichlorophenyl)thio)-4-isopropyl-1-(quinolin-3-ylmethyl)-1H-imidazol-2-yl)methyl carbamate (CAS 178980-21-7)
- 5-(4-Bromophenyl)-1-(2-(dimethylamino)ethyl)-3-hydroxy-4-(4-isopropoxy-3-methylbenzoyl)-1H-pyrrol-2(5H)-one (CAS 371225-07-9)
- 3-(4-Chlorophenyl)-2-((2-(2-chlorophenyl)-2-oxoethyl)thio)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one (CAS 573940-83-7)
- N-(4-(Azepan-1-yl)phenyl)benzo[d]oxazol-2-amine (CAS 940856-02-0)
- 3-(4-Chlorophenyl)-6-tosylpyrazolo[1,5-a]pyrimidin-7-amine (CAS 439109-02-1)
- 6,7-Difluoroquinoline-2-carbaldehyde (CAS 1267125-21-2)
- n-(Thiazol-5-ylmethyl)butan-2-amine (CAS 1339483-76-9)
- 1-(4,6-Dimethylpyrimidin-2-yl)-3-(3-(trifluoromethyl)phenyl)guanidine (CAS 94828-52-1)
- ent-Mesembrine (CAS 468-53-1)
- 4-(Allyloxy)-3-bromo-5-ethoxybenzaldehyde (CAS 426232-67-9)
- n-(4-Chlorophenethyl)-2,2-dimethylpropan-1-amine (CAS 1225682-81-4)
- (6-Methyl-6-azaspiro[3.4]Octan-8-yl)methanamine (CAS 2109626-52-8)
- Semaglutide impurity 74 (CAS CATO-C4X-222674)
Why CATO?
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