China wholesale Yohimbine Hydrochloride - EP BP USP Ready stock 42971-09-5 Vinpocetine – Yibai

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Bear "Customer initially, High-quality first" in mind, we work closely with our prospects and supply them with efficient and specialist companies for 99% Melatonine, 175865-59-5, 137-58-6, We are highly aware of quality, and have the certification ISO/TS16949:2009. We are dedicated to supply you high quality products with reasonable price.

China wholesale Yohimbine Hydrochloride - EP BP USP Ready stock 42971-09-5 Vinpocetine – Yibai Detail:

Product name	Vinpocetine
Synonyms	Ethyl (3alpha,16alpha)-eburnamenine-14-carboxylate
Structure
CAS No.	42971-09-5
Appearance	White powder
Molecular Formula	C₂₂H₂₆N₂O₂
Molecular Weight	350.45
Application	Pharma grade or research purpose
Packing	As per your request
Storage	Preserve in tight,light-resistant containers in a cool place

	Vinpocetine CAS No.: 42971-09-5
ITEMS	STANDARDS	RESULTS
Appearance	It is white or very slightly yellow,crystalline powder	Complies
Solubility	Practically insoluble in water, soluble in methylene chloride, slightly soluble in anhydrous ethanol	Complies
Identification	IR: Should be positive	Complies
Identification	HPLC: the retention time of the main peak of the sample solution corresponds to that of the principal peak for the stock standard solution, as obtained in the test for organic impurities	Complies
Specific Optical Rotation	+127°to +134°	+130.8°
Related Substances (HPLC)	Impurity A: ≤0.6% Impurity B: ≤0.5% Impurity C: ≤0.3% Impurity D: ≤0.5% Unspecified Impurities: ≤0.1% Total Impurities: ≤1.0%	0.13% 0.04% NA NA 0.03% 0.20%
Loss on drying	≤0.5%	0.27%
Heavy metals	≤10ppm	Complies
Sulphated Ash	≤0.1%	0.05%
Assay(HPLC)	98.5%~101.5%	99.4%
Conclusion	Complies.

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√ Management layer’s full experience in factory and skilled technicians followers;
√ Quality is always our top consideration, Strict QC system;
√ 11 years experienced exporting sales team;
√ Independent R&D lab;
√ Two signed long term GMP workshops;
√ Rich resources of plenty idle factories for customized project;
√ High Efficiency working team with consistent path.
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