Ritonavir (CAS 155213-67-5)

Ritonavir is a kind of white or off-white active pharmaceutical ingredient in powdered form. It is mainly used for manufacturing antiretroviral drugs for the treatment of HIV infection and AIDS.

About Ritonavir

Name	Ritonavir
Systematic Name	1,3-Thiazol-5-ylmethyl N-[(2S,3S,5R)-3-hydroxy-5-[[(2S)-3-methyl-2- [[methyl-[(2-propan-2-yl-1,3-thiazol-4-yl)methyl]carbamoyl]amino]butanoyl] amino]-1,6-diphenyl-hexan-2-yl]carbamate
Molecular Structure
CAS No.	155213-67-5
Molecular Formular	C37H48N6O5S2
Molecular Weight	720.94
Appearance	White to off-white powder
Solubility	Freely soluble in methanol and in ethanol, soluble in 2-propanol
Identification	HPLC: The retention time of the test sample corresponds to that of the reference standard
	IR: The infrared absorption spectrum of the test sample is concordant with the spectrum of reference standard
Water content by KF	Not more than 0.5%
Specific optical rotation	Between +7.0 and +10.5º (c=2 in MeOH)
Residue on ignition	Not more than 0.2%
Heavy metals	Not more than 20ppm
Sulphated ash	Not more than 0.10%
Organic volatile impurities	Ethylacetate: Not more than 0.5%
	Heptane: Not more than 0.5%
	Tetrahydrofuran: Not more than 0.072%
Assay by HPLC	Between 98.0% and 102.0%
Package	20kg/cardboard
Capacity	1000kg/month

Packaging Specification
20kg/barrel
Purity: ≥ 98%
(There are 20kg ritonavir in each barrel and the content of API reaches 98% or above)
Note: Our ritonavir packaging is in conformation with export packaging standard, and this API falls into general cargo classification.

Storage
The ritonavir should be preserved in sealed and light-resistant containers.
It should be stored at room temperature.

NOTE : Products protected under specific patents in certain countries are not offered for sale by us in such countries.

We really appreciate your interest in Huasing Chemicals Company, a pharmaceutical intermediate manufacturer and supplier based in China. This page primarily introduces one of our active pharmaceutical ingredients: ritonavir. We produce ritonavir in strict conformation with ICH Q7A GMP Guidance for API, so customers can feel totally secure in our products. In addition to ritonavir, we can also produce lopinavir and oxiracetam, etc. All our products are produced with highly advanced technologies, and customers can feel totally secure in using them.

Huasing Chemicals Company is the first pharmaceutical intermediate manufacturer and supplier in China, producing ritonavir by chemical synthesis. With advanced production technologies, our company can produce 1.5tons ritonavir each month. If you have any need, please feel free to contact us. We welcome your inquire and purchase our products.