Dexamethasone Impurity 83 CAS 1879-87-4
| CAS No. | 1879-87-4 |
| Molecular Formula | - |
| Molecular Weight | 441.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Dexamethasone Impurity 83 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.
CATO supplies Dexamethasone Impurity 83 (CAS 1879-87-4), a pharmacopoeial impurity reference standard (molecular formula N/A, MW 441.41 g/mol) used for the identification and quantification of trace impurities in APIs.
Dexamethasone Impurity 83 is supplied as a fully characterized reference material; its structural identity, assigned purity, and stability data are documented in the batch-specific Certificate of Analysis (COA).
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.
Physical & Chemical Properties
| Molecular Formula | C21H27AFO7P |
| Molecular Weight | 441.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
Related Dexamethasone Standards
- Dexamethasone Acetate EP Impurity E (CAS 1524-94-3)
- Dexamethasone EP Impurity B Disodium Salt (CAS 7460-03-9)
- Dexamethasone Acetate EP Impurity C (CAS CATO-C4X-116540)
- Dexamethasone Acetate EP Impurity B (CAS CATO-C4X-116550)
- Dexamethasone EP Impurity G (CAS 1177-87-3)
- Dexamethasone 17-Propionate (CAS 15423-89-9)
- Dexamethasone 21-Propionate (CAS 3793-10-0)
- Dexamethasone Impurity 86 (CAS 2796254-05-0)
Recommended Standards
- 4430-20-0 Chlorophenol red 4,4'-(3H-2,1-Benzoxathiol-3-ylidene)bis(2-chlorophenol) S,S-dioxide 3',3''-Dichlorophenolsulfonphthalein Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(2-chloro-, S,S-dioxide (8CI)(9CI) Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(2-chloro- Chlorphenol Red Chlorphenolsulfonphthalein Dichlorophenolsulfonephthalein EINECS 224-619-2 NSC 7828 (CAS 4430-20-0)
- (S)-1-Cyclopropyl-7-(3-((ethylamino)methyl)pyrrolidin-1-yl)-6-fluoro-4-oxo-8-(trifluoromethyl)-1,4-dihydroquinoline-3-carboxylic acid (CAS 146981-04-6)
- N-(2,6-Diisopropylphenyl)-1,1,1-trifluoro-N-((trifluoromethyl)sulfonyl)methanesulfonamide (CAS 1092576-41-4)
- (S)-Ethyl 2-((Tert-Butoxycarbonyl)Amino)-3-(4-(((Trifluoromethyl)Sulfonyl)Oxy)Phenyl)Propanoate (CAS 169158-01-4)
- Ataluren Impurity 1 (CAS CATO-C4X-30068)
- Paliperidone Impurity 34 (CAS CATO-C4X-1724134)
- Halcinonide Impurity N3 (CAS 2414269-43-3)
- 7-Methoxyquinoline-2-carboxylic acid (CAS 852402-71-2)
- 2-[1-Methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl]-5-(4-methylphenyl)-1,3,4-oxadiazole (CAS 477762-36-0)
- Methyl aminolevulinate Impurity 9 (CAS CATO-C4X-29939)
- 5-Chloro-8-methoxyquinoline-2-carbaldehyde (CAS 426208-47-1)
- Sethoxydim sulfoxide (CAS 114480-24-9)
- 1-[2-(1H-indol-3-yl)ethyl]-5-oxo-3-pyrrolidinecarboxylic acid (CAS 295344-74-0)
- Semaglutide impurity 24 (CAS CATO-C4X-222624)
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