Tianeptine sulfate in stock of 25kg With The Best Price

tianeptine sulfate chemical structure

Why you should buy tianeptine sulfate powder from us?

#1. High Purity: our purity is 99% as min, check our coa below.

#2. low MOQ: our moq starts from 1kg, repacking can be arranged.

#3. Short Lead time: We have 25kg in stock, repacking can be arranged rapidly and tracking will be provided within 3~4 days.

#4. Samples for quality approval are available

#5. Quality guarantee: 100% refund for any quality issues

#6. Reasonable prices for 99% quality, you can check offers from other suppliers below to compare.

Looking for tianeptine sulfate vendor? Contact Us Now!

What is tianeptine sulfate?

Cas number: 1224690-84-9

Molecular formula: C42H56Cl2N4O14S3

Molecular weight: 1008g/mol

Chemical name: 7-((3-Chloro-6-methyl-5,5-dioxido-6,11-dihydrodibenzo[c,f][1,2]thiazepin-11-yl)amino)heptanoic acid compound with sulfuric acid (2:1) dihydrate

Other names: Tianeptine hemisulfate monohydrate, 1224690-84-9, Tianeptine hemisulfate monohydrate (THM), 7-((3-Chloro-6-methyl-5,5-dioxido-6,11-dihydrodibenzo[c,f][1,2]thiazepin-11-yl)amino)heptanoic acid compound with sulfuric acid (2:1) dihydrate, Tianeptine sulphate, Tianeptine-d4.

It is a white to off-white crystalline powder mainly used for depression. Sometimes it is used as nootropics along with its siblings: tianeptine sodium and tianeptine acid. 

Because of the poor solubility of tianeptine free acid in the water and its unstability for storage, tianeptine acid is often made into tianeptine sulfate or tianeptine sodium for better and easier dosing.

Tianeptine sulfate vs free acid

Speaking of the tianeptine free acid made into sulfate or sodium salt, let’s check out why and the differences between sulfate salt and free acid.

Similar water solubility (insoluble in water)

Tianeptine sulfate is an organic salt while tianeptine acid is an organic acid. Some people may suppose tianeptine sulfate salt should be very soluble in water as it is a salt, it turns out to be wrong conclusion.

According to our tests, under room temperature Tianeptine Sulfate is soluble dimethyl formamide but insoluble in water and methylene chloride. Tianeptine acid is Insoluble in water, methanol but slightly soluble in ethanol.

In common sense that salts should have better water solubility than acids at higher temperatures and solubility tests also prove this point.


Tianeptine sulfate is a little more stable than tianeptine acid. Sulfate salt has monohydrate within, so it is too sensitive when exposed to air for a little while. Please note those both are sensive to light and you have to store them from light.


The cost of tianeptine sulfate on the market is 20%~30% higher than that of free acid. Free acid price is similar to sodium salt.


Sulfate salt has the best bioavailability among all the three, this is also why sulfate is the most popular product.

Tianeptine sulfate vs sodium

As both sufate and sodium are from the same tianeptine family and you are wandering between sulfate salt and sodium. Well, wander no more my friend. 

We have discussed the 6 differences between tianeptine sulfate and tianeptine sodium in details in our tianeptine sodium page. You can click on the link above to check the details.

After you check all those differences, then you can decide which to choose.


As tianeptine sulfate is not enlisted in any pharmacopoeia, there are not any dosages from official sources such as Drug Evaluation websites from any country.

But still we see tianeptine sulfate 25mg capsules and tablets on the market. Wherever you see them, keep in mind that those dosages are not approved by any FDA.

Tianeptine sodium caps or tabs are just another story, they are approved by officials of drug evaluation

Where to buy tianeptine sulfate and what is the price?

If you want to buy tianeptine sulfate for research, please contact us directly. We have it in stock ready for shipping.

Please check our prices as below. We will also give you some prices from other suppliers for your ref. You can also download our coa below to check our quality standards first.

Currently we are running 25kg in stock to keep it always fresh.

The price from octagonchem for commercial order quantities over 50kg is around 3500USD/kg.

For quantities of 10kg or less, our cost is around 3600USD/kg.

As all prices are subject to the raw material price fluctuations, please contact us directly for more accurate prices.

price from tianeptinedirect is 7000usd per 1kg

price from tianeptinebuyonline is 800usd per 100g

tag price from tianeptinestore is 600usd per 50g

cost from savant-research is 106usd per 10g

After comparing all the offers from other vendors, you will find that the best offer you can get is 7000usd for 1kilo.

Though they can ship directly from the US or Canada, our price difference is still huge.

As for the quality, we are sure our quality is second to none, which we are very proud to say it loudly.

Anyway, if you are ready to order commercially, octagonchem should be your top choice.

Technical Documents Download