Estramustine CAS 2998-57-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 2998-57-4 |
| Molecular Formula | C23H31Cl2NO3 |
| Molecular Weight | 440.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Estramustine (CAS 2998-57-4), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C23H31Cl2NO3. Molecular weight: 440.40 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C23H31Cl2NO3 |
| Molecular Weight | 440.40 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| 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 | Cl-containing |
| Nitrogen Atoms | 1 |
Related Estramustine Standards
Recommended Standards
- 4-[2,6-Bis(4-carboxyphenyl)-4-pyrimidinyl]-Benzoicacid (CAS 2378391-11-6)
- H-Resorcinol [Spectrophotometric reagent for the determination of B by FIA] (CAS 3627-01-8)
- 4-(4-Fluorobenzoyl)-3-hydroxy-1-(5-methyl-1,3,4-thiadiazol-2-yl)-5-(4-nitrophenyl)-1H-pyrrol-2(5H)-one (CAS 371119-70-9)
- 1-(1,3-Dioxan-5-yl)-N,N-dimethyl-1-(pyridin-3-yl)methanamine (CAS 62938-80-1)
- 2-Ethyl-1-(3-methylpiperazin-1-yl)butan-1-one (CAS 1240578-55-5)
- (2r)-2-Amino-2-(3-bromo-5-chlorophenyl)ethan-1-ol hydrochloride (CAS 2408937-02-8)
- 4-(Cyclohexylmethoxy)-3-methylaniline (CAS 946698-44-8)
- Ethyl 3-[(4-Bromophenyl)(hydroxy)methyl]isoxazole-4-carboxylate (CAS 2006277-63-8)
- 1-Ethyl-2,2-dimethyl-1,4-diazepane (CAS 1267814-02-7)
- Insulin Degludec Impurity 17 (CAS CATO-C4X-215717)
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