Estradiol Impurity 35 CAS 1373116-15-4
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 1373116-15-4 |
| Molecular Formula | C28H38O4 |
| Molecular Weight | 438.60 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
High-purity Estradiol Impurity 35 (CAS 1373116-15-4) pharmacopoeial impurity standards reference standard. Molecular formula: C28H38O4. Molecular weight: 438.60 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C28H38O4 |
| Molecular Weight | 438.60 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
Related Estradiol Standards
- 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 3,17-DisulfateDISCONTINUED, offer E888945 (CAS 3233-70-3)
- β-Estradiol 3-benzoate 17-n-butyrate (CAS 63042-18-2)
- Estradiol Impurity 43 (CAS 19590-55-7)
- 17β-Estradiol 17β-D-Glucuronide (CAS 1806-98-0)
- 17beta-Estradiol 3-beta-D-Glucuronide (CAS 15270-30-1)
Recommended Standards
- Cortistatin J (CAS 944804-62-0)
- Estrone Impurity 8 (CAS CATO-C4X-21058)
- A-NOR-5α-ANDROSTAN-2α, 17α-DIETHYNYL-2β, 17β-DIOL DIPROPIONATE (CAS 56470-64-5)
- Exemestane EP Impurity F (CAS 72648-46-5)
- Dapagliflozin Impurity 152 (CAS 2459303-35-4)
- 1,1-Dimethylbutyl 2-methyl-2-propenoate (CAS 100472-88-6)
- 5-Cyclopropyl-5-methylimidazolidine-2,4-dione (CAS 5470-46-2)
- 3-Chloro-2-(3-(trifluoromethyl)-1h-pyrazol-1-yl)aniline (CAS 1006961-96-1)
- Methyl 2-(4'-Hydroxybenzoyl)benzoate (CAS 21147-23-9)
- Tirzepatide Impurity 23 X TFA Salt (CAS CATO-C4X-324023)
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