Estradiol hemihydrate CAS 35380-71-3
Purity >85%In StockPharmaceutical Standards
| CAS No. | 35380-71-3 |
| Molecular Formula | 2*C18H24O2 H2O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Estradiol hemihydrate (CAS 35380-71-3), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: 2*C18H24O2 H2O. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | 2*C18H24O2 H2O |
| Molecular Weight | 290.40 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >85% |
| Storage | Store at 2-8°C, 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
Related Estradiol Standards
- Estradiol 3-Methyl Ether (CAS 1035-77-4)
- Estradiol 3-sulfate 17b-glucuronide dipotassium salt (CAS 10392-35-5)
- Estradiol Valerate Impurity 12 (CAS 10582-53-3)
- Estradiol Impurity 23 (CAS 1093411-48-3)
- 17-Beta-Estradiol 3,17-Dipropionate (CAS 113-38-2)
- ∆9(11)-Estradiol Diacetate (CAS 1169-54-6)
- Estradiol Impurity 21 (CAS 1187829-63-5)
- 17β-Estradiol-16,16,17-d3 3-Benzoate (CAS 1192354-74-7)
Recommended Standards
- 2-Benzylbicyclo[2.2.1]heptane-2-carboxylic acid (CAS 1375473-78-1)
- 6-Bromo-8-methoxy-[1,2,4]triazolo[1,5-a]pyrazine (CAS 2169539-35-7)
- 5-Methoxy-6-nitro-2,3-dihydro-1H-inden-1-one (CAS 221311-07-5)
- Methyl 5-(thiophen-2-yl)-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-2-carboxylate (CAS 313249-33-1)
- 2-((2-Oxo-2-(pyrrolidin-1-yl)ethyl)thio)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one (CAS 325693-15-0)
- Methyl pyridazine-1(6H)-carboxylate (CAS 55306-94-0)
- [2-31]-Semaglutide C (x TFA Salt) (CAS CATO-C4X-2226118)
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