CAS NO. 10097-84-4
Other Name: Levo-tetrahydropalmatine, L-THP
Function: L-THP has been demonstrated to possess analgesic effects
Levo-tetrahydropalmatine (l-THP) is an active constituent of herbal preparations containing plant species of the genera Stephania and Corydalis and has been approved and used in China for a number of clinical indications under the drug name Rotundine.

Technical Data Sheet Of L-Rotundin

Product Name L-Rotundin
CAS NO. 10097-84-4
Standard CP2015
Appearance White to yellowish crystalline powder
Odor & Taste Characteristic
Identification A. Pass chemical identification test



Loss on drying ≤5.0%
Residue on ignition ≤0.1%
Specific Rotation -190°~ -300°
Melting point 141℃~144℃
Absorption coefficient 150~160
Heavy metal ≤20ppm
Lead (Pb) ≤2.0ppm
Arsenic (As) ≤1.0ppm
Mercury (Hg) ≤0.1ppm
Cadmium (Cd) ≤1.0ppm
Total plate count ≤1000cfu/g
Yeast & mold ≤100cfu/g
E.coli Negative
Salmonella Negative
Total impurity ≤0.5%
Assay: L-Rotundin 98.5%~102.0%
Storage conditions In Tight, Light-resistant and Dry Place. Avoid Direct Sunshine
Shelf life 24 months under the conditions above and in its original packaging.
Statements Non-Irradiated, Non-GMO, Non-Allergen
Packaging 25KG/Drum