雌二醇相关杂质3 CAS 22145-35-3
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 22145-35-3 |
| Molecular Formula | C18H26O2 |
| Molecular Weight | 274.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 雌二醇相关杂质3 (CAS 22145-35-3), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C18H26O2. Molecular weight: 274.40 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C18H26O2 |
| Molecular Weight | 274.40 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
Recommended Standards
- (4aS)-1,1,4a,7-Tetramethyl-1,2,3,4,4a,9,10,10a-octahydrophenanthrene-2,6-diol 769140-74-1 ST24034756 (CAS 769140-74-1)
- Bupivacaine Impurity 33 (CAS 98626-61-0)
- α-Obscurine (CAS 596-55-4)
- Netupitant Impurity 55 (CAS 3017145-54-6)
- Flomoxef Impurity 51 (CAS CATO-C4X-138251)
- 6-Chloro-2-(4-ethoxyphenyl)quinoline-4-carboxylic acid (CAS 897560-18-8)
- 2-(3-Bromo-5-trifluoromethylphenyl)[1,3]dioxolane (CAS 1541197-82-3)
- 4-Bromobenzoic Acid (CAS 586-76-5)
- 2-(Azetidin-3-yloxy)-N-isopentylacetamide (CAS 1340291-90-8)
- Protein Kinase C (alpha) Peptide (CAS 159939-84-1)
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 13829788188 / jacky.chen@cato-chem.com