CAS 144164-11-4

(2S, 3S, 5S)-5- Amino -2- (N- ( (5- Thiazolyl)- Methoxycarbonyl) Amino) -1, 6 Diphenyl -3- Hydroxyhexane (hereinafter called CAS No. 144164-11-4) is a kind of off-white to light yellow powder. This pharmaceutical intermediate is mainly used for manufacturing ritonavir, a kind of API for manufacturing antiretroviral drugs for the treatment of HIV infection and AIDS.

Specifications of Pharmaceutical Intermediate, CAS No.144164-11-4

Name	(2S, 3S, 5S)-5-Amino-2- (N-( (5-thiazolyl)-methoxycarbonyl)amino)-1,6- diphenyl-3-hydroxyhexane
Molecular Structure
CAS No.	144164-11-4
Molecular Formular	C23H27N3O3S
Molecular Weight	425.54
Appearance	White/off-white to light yellow solid
Identification	HPLC: The retention time of the test sample corresponds to that of the reference standard
	UV: The ultraviolet absorption spectrum of the test sample is concordant with the spectrum of reference standard
Water content by KF	Not more than 0.5%
Chromatographic purity (by HPLC, Area%)	Impurity with RRT=0.11: Not more than 0.3%
	Impurity with RRT=0.95: Not more than 0.1%
	Any unidentified impurity: Not more than 0.1%
	Total impurities: Not more than 1.0%
	Purity: Not less than 98.0%
Package	25kg/cardboard
Capacity	1000kg/month

Packaging Specification
20kg/barrel
Purity: ≥ 98%
(There are 20kg ritonavir intermediate, CAS No. 144164-11-4 in each barrel and the ritonavir intermediate purity reaches 98% or above)
Note: The packaging for our ritonavir intermediate, CAS No. 144164-11-4 is in conformation with export packaging standard, and this pharmaceutical intermediate falls into general cargo classification.

Storage
The CAS No. 144164-11-4 should be preserved in sealed and light-resistant containers.
It should be stored at room temperature in dry places.

Huasing Chemicals Company is a CAS No. 144164-11-4 manufacturer and supplier in China. Our company produces this ritonavir intermediate by chemical synthesis. With advanced production technologies, our company can produce 1.5tons CAS No. 144164-11-4 each month.

We welcome you to visit our website. We at Huasing Chemicals Company produce different types of pharmaceutical intermediate, including intermediates for ritonavir, lopinavir and so on. All our products are made in strict conformation with GMP standard, thus ensuring customers are at ease in using our products. Meanwhile, we can also manufacture active pharmaceutical ingredients, and spices.
Till now, we have established cooperative relationship with customers from Brazil, Italy, Canada, and some countries in Southeast Asia. If you are looking for pharmaceutical intermediates or API, please don’t hesitate to contact us. We will never disappoint you.