Estradiol Impurity 36 CAS 1359847-39-4
| CAS No. | 1359847-39-4 |
| Molecular Formula | C29H42O4 |
| Molecular Weight | 454.64 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, a hydroxyl group, an ether linkage, Estradiol Impurity 36 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 454.64 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Estradiol Impurity 36 (CAS 1359847-39-4) is a certified pharmaceutical impurity reference standard with the molecular formula C29H42O4 and a molecular weight of 454.64 g/mol.
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.
CATO manufactures Estradiol Impurity 36 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 | C29H42O4 |
| Molecular Weight | 454.64 g/mol |
| Appearance | Pale yellow to 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
Related Estradiol Standards
- 17β-Estradiol-d3 3-β-D-Glucuronide (CAS 1260231-06-8)
- 17β-Estradiol 17β-D-Glucuronide (CAS 1806-98-0)
- 17beta-Estradiol 3-beta-D-Glucuronide (CAS 15270-30-1)
- β-Estradiol 3-benzoate 17-n-butyrate (CAS 63042-18-2)
- Estradiol Valerate Impurity 20 (CAS CATO-C4X-284220)
- Estradiol Valerate EP Impurity E (CAS 63042-28-4)
- Estradiol Valerate EP Impurity H (CAS 1421283-56-8)
- β-Estradiol 17-(β-D-glucuronide) sodium salt (CAS CATO-C3D-1941)
Recommended Standards
- Ubidecarenone Impurity 14 (Coenzyme Q4) (CAS 4370-62-1)
- Ezlopitant (CAS 147116-64-1)
- 1,4-Phenylenebis((4-(tert-butyl)-2,6-dimethylphenyl)methanone) (CAS 911836-46-9)
- Vortioxetine Impurity 50 (CAS CATO-C4X-105650)
- Ibrutinib Impurity 52 (CAS 50717-82-3)
- Methylprednisolone Hydrogen Succinate EP Impurity E (CAS 2920-86-7)
- Lansoprazole Impurity 8 (CAS 127337-60-4)
- 2-Heptylidenecyclopentanone (CAS 39189-74-7)
- (2S,3R)-3-(4-Bromophenyl)pyrrolidine-2-carboxylic acid (CAS 528607-50-3)
- 3-Benzyl-1-isopropyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile (CAS 175203-47-1)
- 3-[(4-aminophenyl)methyl]imidazolidine-2,4-dione (CAS 191864-73-0)
- 2-((4-Chlorobenzyl)thio)-1,1-diphenylethan-1-ol (CAS 252026-40-7)
- 5-((4-Bromophenoxy)methyl)-1,3,4-thiadiazol-2-amine (CAS 299441-95-5)
- Semaglutide Impurity 189 (CAS CATO-C4X-2226189)
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