Estrone 3-sulfate potassium salt CAS 1240-04-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1240-04-6 |
| Molecular Formula | C18H21O5S K |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Estrone 3-sulfate potassium salt (CAS 1240-04-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H21O5S K. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H21O5S K |
| Molecular Weight | 388.52 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Sulfur Atoms | 1 |
Related Estrone Standards
- Estrone impurity 6 (CAS 1089-80-1)
- Estrone 3-Valerate (CAS 128788-26-1)
- Estrone 3-O-Sulfamate (CAS 148672-09-7)
- Estrone β-D-Glucuronide Sodium Salt (CAS 15087-01-1)
- Estrone 3-Methyl Ether (CAS 1624-62-0)
- Estrone Enol Diacetate (CAS 20592-42-1)
- Estrone beta-D-Glucuronide (CAS 2479-90-5)
- Estrone-d4 3-Sulfate Sodium Salt (CAS 285979-80-8)
Recommended Standards
- Methyl 3-[3-(methoxycarbonyl)phenyl]-5-(trifluoromethyl)benzoate (CAS 1820673-76-4)
- Propionaldehyde 2,4-Dinitrophenylhydrazone-3,5,6-d3 (CAS 259824-53-8)
- 4-(2-Bromoethyl)-3-ethylpiperidine (CAS 808100-55-2)
- Methyl 4-bromo-5-methylpicolinate (CAS 1256813-52-1)
- 2-Furancarboxylic acid, 5-chloro-4-cyano- (CAS 1784551-47-8)
- 2-(Cyclopentyloxy)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1193245-09-8)
- Semaglutide impurity 249 (CAS CATO-C4X-2226249)
Why CATO?
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