Tianeptine FREE ACID - 20 Grams, ≥98%

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Chemical Name: 7-[(3-Chloro-6,11-dihydro-6-methyl-5,5-dioxidodibenzo[c,f][1,2]thiazepin-11-yl)amino] heptanoic acid
Synonyms: 7-(3-chloro-6-methyl-5,5-dioxo-6,11-dihydrodibenzo(c,f)(1,2)thiazepin-11-yl)-7-aminoheptanoic acid; tianeptine, tianeptine (+)(-) isomer

CAS #: 66981-73-5

Antidepressant, analgesic and neuroprotective.

Form: White powder
Molecular Formula:  C21H25ClN2O4S

Molecular Weight:    436.95
Solubility:    Insoluble in in Water. Soluble in aqueous solutions of NaOH, KOH

Tianeptine sodium salt
The sodium salt form of Tianeptine - created by reacting Tianeptine (as the free acid) with sodium hydroxide.
Most common form of Tianeptine - approved as a pharmaceutical in EU.
Water soluble, can form solutions with stirring in a number of useful liquids.
Typically very hygroscopic, rapidly gels when exposed to atmospheric humidity.
When used as a pharmaceutical - is absorbed rapidly and completely when consumed p.o.
When used as a pharmaceutical - no sustained release when consumed p.o., so concentrations begin rapidly falling, requiring 3x daily administration. 

Tianeptine (free acid)
The Tianeptine molecule itself, not formed into a salt. Sometimes also referred to as the "free base", although Tianeptine is mildly acidic.
Second most common form of Tianeptine - most often used as an intermediate for further processing into various forms.
Non-water soluble. Dissolves in basic aqueous solutions.
Non-hygroscopic. Unlike sodium salt, this form can be exposed to atmospheric humidity for minutes to hours with no ill effect.
If developed as a pharmaceutical - is absorbed gradually and to a somewhat lower extent when consumed p.o., vs. sodium salt form.
If developed as a pharmaceutical - has a sustained release tendency when consumed p.o., so concentrations rise and fall more gently.


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