| Size | Price | Stock | Qty |
|---|---|---|---|
| 5mg |
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| 10mg |
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| Other Sizes |
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| ln Vitro |
Gynecological creams or capsules containing proestrenol, an estradiol analogue, can be injected intravaginally without causing systemic effects or limited absorption [2]. Topical proestren is barely absorbed when used consistently, and studies have shown that it greatly reduces vaginal atrophy symptoms [3].
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| References |
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| Additional Infomation |
Promestriene is a steroid. It derives from a hydride of an estrane.
Promestriene (3-propyl ethyl, 17B-methyl estradiol) has been used in trials studying the prevention of Hypospadias. It is a synthetic estrogen analog, which is used in topical estrogen therapy. Promestriene’s potential for treating vaginal atrophy symptoms associated with aromatase inhibitor treatment would be precluded if its minimal absorption leads to estrogen-like effects on cell proliferation and estrogen-responsive gene expression. The concern with absorbed vaginal estrogens or estrogen analogs is that they activate occult sites of residual breast cancer or negate the tumor suppressive effects of aromatase inhibitor adjuvant therapy. Promestriene has been studied in phase IV of the clinical trial on improvement of hormonal cytology, local and systemic climacteric complaints, as well as its endometrial security in patients with vaginitis atrophic pelvic; organ prolapse and endometrial hyperplasia. It has been also studied in phase III of the clinical trial in the post-operative patients with hypospadias. In addition, promestriene was in phase IV of the clinical trial to study its treatment of patients with vaginosis, bacterial, but that studied was terminated. Promestriene is a 3-propyl and 17b-methyl ether of estradiol that may be used vaginally to relieve vaginal atrophy and its associated symptoms. Upon intravaginal administration, promestriene acts on the vaginal mucosa and may decrease vaginal atrophy and its associated symptoms, such as vaginal dryness and itching. |
| Molecular Formula |
C22H32O2
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|---|---|
| Molecular Weight |
328.4883
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| Exact Mass |
328.24
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| CAS # |
39219-28-8
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| PubChem CID |
9883915
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| Appearance |
White to off-white solid powder
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| Density |
1.1±0.1 g/cm3
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| Boiling Point |
436.8±45.0 °C at 760 mmHg
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| Melting Point |
64-660ºC
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| Flash Point |
153.3±28.3 °C
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| Vapour Pressure |
0.0±1.0 mmHg at 25°C
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| Index of Refraction |
1.546
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| LogP |
6.48
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| Hydrogen Bond Donor Count |
0
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| Hydrogen Bond Acceptor Count |
2
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| Rotatable Bond Count |
4
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| Heavy Atom Count |
24
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| Complexity |
436
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| Defined Atom Stereocenter Count |
5
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| SMILES |
CCCOC1=CC2=C(C=C1)[C@H]3CC[C@]4([C@H]([C@@H]3CC2)CC[C@@H]4OC)C
|
| InChi Key |
IUWKNLFTJBHTSD-AANPDWTMSA-N
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| InChi Code |
InChI=1S/C22H32O2/c1-4-13-24-16-6-8-17-15(14-16)5-7-19-18(17)11-12-22(2)20(19)9-10-21(22)23-3/h6,8,14,18-21H,4-5,7,9-13H2,1-3H3/t18-,19-,20+,21+,22+/m1/s1
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| Chemical Name |
(8R,9S,13S,14S,17S)-17-methoxy-13-methyl-3-propoxy-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene
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| HS Tariff Code |
2934.99.9001
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| Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
| Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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| Solubility (In Vitro) |
DMSO : ~20 mg/mL (~60.88 mM)
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|---|---|
| Solubility (In Vivo) |
Solubility in Formulation 1: ≥ 2 mg/mL (6.09 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 2 mg/mL (6.09 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly. (Please use freshly prepared in vivo formulations for optimal results.) |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 3.0442 mL | 15.2212 mL | 30.4423 mL | |
| 5 mM | 0.6088 mL | 3.0442 mL | 6.0885 mL | |
| 10 mM | 0.3044 mL | 1.5221 mL | 3.0442 mL |
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.
Calculation results
Working concentration： mg/mL；
Method for preparing DMSO stock solution： mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation:：Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O，mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.
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