18-Methyl Ethynyl Estradiol CAS 14012-72-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 14012-72-7 |
| Molecular Formula | C21H26O2 |
| Molecular Weight | 310.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 18-Methyl Ethynyl Estradiol (CAS 14012-72-7), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C21H26O2. Molecular weight: 310.43 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C21H26O2 |
| Molecular Weight | 310.43 g/mol |
| Appearance | Pale yellow to 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
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Recommended Standards
- (2-(Methylthio)pyridin-3-yl)(1-oxa-4-thia-8-azaspiro[4.5]decan-8-yl)methanone (CAS 1396558-71-6)
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- N-(4-butylphenyl)-2-(4-phenylpiperazin-1-yl)acetamide (CAS 868256-44-4)
- N'-(2-Oxoindolin-3-ylidene)-2-phenoxyacetohydrazide (CAS 154910-40-4)
- 1,1,1,3,8,9-Hexachlorononane (CAS 865306-21-4)
- Tert-butyl (R)-(1-phenylethyl)carbamate (CAS 184888-43-5)
- N-[(S)-1-(2-Hydroxy-ethyl)-pyrrolidin-2-ylmethyl]-N-methyl-acetamide (CAS 1354007-86-5)
- 6-Nitro-2,3-dihydro-benzo[1,4]dioxine-2-carboxylic acid (CAS 797030-53-6)
- Semaglutide impurity 39 (CAS CATO-C4X-222639)
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