DISCLAIMER: This is not medical advice, engage in DIY HRT at your own risk; the intent of this post is harm reduction. This information is not intended for minors; by reading further you agree you are over the age of 21.

DISCLAIMER 2: This is not rigorous scientific research. I conducted this experiment over the course of a work day, carrying out my actual work while trying to not arouse suspicion. That being said, I am using these results to inform my own DIY HRT.

Earlier this year, I bought estradiol enanthate (EEn) from Dragon Ordnance ( dragonordnance.io or dragonordnance.com ; .io seems to be down but they’re run by the same people). Shipping was expensive ($50 I think) because they are located in China, but the prices are low ($5 for a gram that will last over 2 years). You have to email them for information on how to send payment, either sending cryptocurrency or a cash transfer via the Wise app. The people are really nice too; the person processing orders had COVID when I ordered and my order was delayed a week or two so they sent me double my order. I’m sitting on a 25 year supply now so I’m going to be giving away a lot of E to friends.

I also bought MCT oil as a solvent for the injectable solution and benzyl alcohol as a preservative from Dragon Ordnance. I used a volumetric flask to make a 50 mg/mL EEn solution with 2% v/v benzyl alcohol, but if you don’t have access to volumetric flasks you can make a vial with 500 mg EEn, 0.2 mL benzyl alcohol, and 9.35 mL MCT oil. This wiki is a good resource for DIY MtF HRT, but the owner of the group is an outspoken anti-communist. I plan on injecting 0.3 mL (15 mg EEn) every 14 days, but this wiki recommends 0.22 mL (11 mg EEn) every 7 or 10 days. Use distilled water to determine which liquid is MCT oil and which is benzyl alcohol. The MCT oil will float on distilled water, while the benzyl alcohol sinks. Also, 1 mL of benzyl alcohol will dissolve in 25 mL of water if you mix it thoroughly, while MCT oil will not dissolve in water.

I happen to be a chemist who has access to a variety of analytical instruments so I ran UPLC to test for purity and GC-MS to verify that the chemical is actually estradiol.

The UPLC chromatogram indicates very high purity (>99%), as only one peak was visible.

The extracted UV-Vis spectrum of the UPLC at 8.429 minutes (the sole peak above) was consistent with the expected UV absorption of estradiol esters.

The GC-MS chromatogram similarly indicated the presence of just one compound at 26.628 minutes (the first peak is the solvent I used, and the following two peaks are solvents commonly used in our lab and are likely only present in this chromatogram due to residue on the sample injection needle). The small peak between 14 and 15 minutes is likely a breakdown product formed in the harsh GC conditions.

The mass spectrum at 26.628 minutes indicates the compound is estradiol enanthate. The NIST library we use indicated a >90% chance that the compound is some estradiol derivative based on the fragmentation. The base peak at 384.3 m/z is sufficient evidence to identify the compound as estradiol enanthate, which has a molar mass of 384.56 g/mol.

I am confident that the powder sent by Dragon Ordnance is high purity estradiol enanthate and would highly recommend this vendor for their low price, quality product, and good service.