99% Tiopronin API Powder With Best Prices
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Why You Import Bulk Tiopronin API From Us?
First: Strict GMP guidelines guarantee high quality.
The bulk powder is produced strictly according to cGMP guidelines.
Therefore, this API is suitable for the production of finished dosages for human consumption, especially for pharmacy compounding.
Second: Steady supply with stable stock
Our standard stock quantity for it is 100~200 Kilos.
Stock status may slightly differ due to order quantities submitted by regular customers, but we make sure of the quick supply to the customers through our flexible production plans.
What is Tiopronin?

Introductions:
It is a white to off-white powder with its characteristic odor.
Of course, as an organic sulfur compound, it doesn’t smell good, at least not pleasant.
Tiopronin is soluble in water or ethanol, and very slightly soluble in chloroform or ether.
Meanwhile, as a reducing molecule, tiopronin quickly goes bad when exposed to high temperatures and sunlight.
Product Name: Tiopronin (硫普罗宁)
Cas Number: 1953-02-2
Molecular Formula: C5H9NO3S
Molecular Weight: 163.20 g/mol
Chemical Name: (2S)-2-amino-3-methyl-3-sulfanylbutanoic acid
HS Code: 2930909099 (Other organic sulfur compounds-其他有机硫化合物)
Suitability to be shipped by air as common goods: suitable. It is safe to be shipped by air as common goods.
Grade: Pharma-Grade
Purity or Assay: 99%
Standards: Current Enterprise/USP Standards
Certificates available: GMP/ISO
Documents Available: COA/DMF/MSDS
Supply Capability: 1000+ KG per year
MOQ: 1KG
Price Ideas In 2023: 1680USD/1KG, 900USD/KG for 10-25KG. (For more updated prices, contact us directly by email or WhatsApp)
Lead Time: 5~6 days for quantities less than 50KG, 3~4 days for orders less than 10KG.
Stock Status: Over 100KG
Shipping Temperature: Room temperature
Storage: Room temperature
Testing Spectrums Available For Tiopronin API
For Purity: HPLC or LC-Mass
We test its purity on every batch before they are released for export.
We need to make sure the quality is good before materials leave our warehouse.
Our purity requirement for our bulk tiopronin is 98.5% as min, normally the actual results will be over 99%.
For Structure: 1HNMR
We don’t test 1HNMR for every batch, but if you need it, we will test it for you.
As HPLC can also be used for identification with the comparison with the testing spectrum of RS, once the Retention Time of Peaks corresponds, it is the same material for sure.
Elemental Analysis:
We don’t normally do elemental analysis for this product, as it is not required by our SFDA or any other pharmacopeias.
If you have such requirements, we will test them in a third-party testing institution for you.