Product description
Estradiol undecylate CAS 3571-53-7 is a long-acting estrogen compound, belonging to the ester derivatives of β-Estradiol. Chemically, it is formed by the esterification of the 17β-hydroxyl group of β-Estradiol with undecylic acid. It is significantly more lipid-soluble than free β-Estradiol, allowing it to be stored in adipose tissue. It slowly hydrolyzes to release free β-Estradiol, thus exerting its effect. As a long-acting estrogen preparation, it prolongs the duration of its effect and reduces the frequency of use.
It is commonly used in hormone replacement therapy to improve menopausal symptoms (such as hot flashes, night sweats, and mood swings), premature ovarian failure, or estrogen deficiency symptoms after oophorectomy. It can also be used to regulate menstrual irregularities related to endocrine disorders or as an adjunct treatment for certain estrogen-dependent gynecological conditions.
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COA
| Tests | Specifications | Results |
| Description | White Crystalline Powder | White Powder |
| Identification | Positive | Positive |
| Assay(by HPLC) | 98.0~102.0% | 99.34% |
| Absorbance(E1cm) | 465~495 | 482.5 |
| Melting Point | 191~195°C | 193.5~195.0°C |
| Loss On Drying | 0.5%max | 0.19% |
| Specific Rotation | +288°~ +298° | +290.2° |
| Residue On Ignition | 0.1%max | 0.03% |
| Related Substances | Total:1.5%max | <1.3% |
| Single:0.5%max | <0.4% | |
| Residue Solvents | 0.2%max | 0.10% |
| Heavy Metals | 20PPm max | <10PPm |
| Conclusion | Conform with enterprise specification | |
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Density: 1.07 g/cm³
Boiling point: 554.9°C at 760 mmHg
Molecular formula: C29H44O3
Molecular weight: 440.65800
Flash point: 208.7°C
Precise mass: 440.32900
PSA: 46.53000
LogP: 7.69090
Who are the contraindications for Estradiol undecylate CAS 3571-53-7?
Contraindications include:
Patients with estrogen-dependent malignant tumors such as breast cancer and endometrial cancer;
Patients with a history of thrombosis such as venous thrombosis and pulmonary embolism;
Patients with severe liver or kidney dysfunction;
Patients with unexplained vaginal bleeding;
Pregnant and lactating women.
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why choose us
Our Factory
Package
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Transportation Time |
Shipping method |
Cargo weight requirements |
Advantage |
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3-7 days |
DHL,Germany DHL,Germany DPD, |
Suitable for under 50kg. |
We have warehouses in Germany and California, USA, and customers in Europe and America can enjoy sending goods directly from these two places. |
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7-15 days |
By Air |
Suitable for more than 50kg. |
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15-60 days |
By Sea |
Suitable for more than 500kg. |
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FAQ
01. What quality requirements must be followed in the production of Estradiol undecylate CAS 3571-53-7?
02. What are the potential risks of long-term use of Estradiol undecylate CAS 3571-53-7?
Long-term use should be noted for the following risks:
Increased risk of venous thrombosis and stroke;
Possible stimulation of breast and endometrial hyperplasia, increasing the risk of related lesions;
Placement of some burden on liver function;
Possible adverse reactions such as nausea, breast tenderness, and weight changes.
03. Where can I buy Estradiol undecylate CAS 3571-53-7?
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