Preservation Sciences, Inc.

chlorine colloid

, India and Japan pharmaceutical industry. state-of-the-art research center in WaiGaoQiao Free Trade Zone and a
250 ,000 sq. PETERSBURG, Fla.

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Tripos collaborates with clients to
accelerate and improve the creation of life-enhancing products. Within
Tripos' Discovery Informatics (DI) business, the company provides
software products and consulting services to develop, manage, analyze
and share critical drug discovery information. These databases are indispensable in
generating new leads, planning synthetic routes, determining bioactivity and
physical properties. The installation of the two databases also
exemplifies WuXi PharmaTech's commitment to IP protection. Ge Li, Chairman and CEO of WuXi PharmaTech said, "The agreements with
NeoTrident and Elsevier MDL give us state-of-the-art chemistry databases .
Engaging content provider like Elsevier MDL shows our unwavering commitment to
quality, integrity and IP protection. WuXi PharmaTech
assists global pharmaceutical and biopharmaceutical companies in shortening
the cycle and lowering the cost of drug research and development, and helps
clients fully leverage the lower cost R+D capacity in China.S.neotrident.
"The U.

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, and/or its affiliates in the United States and certain other
countries., is the
leader in the pharmaceutical R+D services industry in China. For more information, visit http://www.com.

adhesion cefic

com

This press release may contain certain statements that are
forward-looking and involve risks and uncertainties. We have
identified certain factors that could cause actual results to differ
materially from the forward-looking statements in our Annual Report on
Form 10-K, our Quarterly Reports on Form 10-Q, and our Current Reports
on Form 8-K.

estac nacs

Harrison
further explained. Harrison stated. All
forward-looking statements are subject to risks and uncertainties
which could cause actual results to differ from the forward-looking
statements contained in this release and which may affect the
Company's prospects in general.

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Making Elsevier MDL chemistry databases widely accessible to chemists will
greatly improve the overall drug discovery and development productivity and
quality at WuXi PharmaTech. in Jacksonville, Florida ran the
environmental analysis.

colloid adhesion

'' Mr.
Having scientific and technical information conveniently available to our
scientists is essential in providing high quality research work to our clients. WuXi PharmaTech has a 360,000
sq.

About Elsevier MDL
Elsevier MDL provides informatics, database and workflow solutions that
accelerate successful life sciences R+D by improving the speed and quality of
scientists' decision making. MM 818 passed two ASTM adhesion tests.

catalysis raci

Business Editors/Health /Medical Writers
BIOWIRE2K

ST.1, the latest version of its premier 3-D
molecular data desktop tool.
Enhancements to the software include new scientific, graphic and
operational features, hyperlink captions, and an integrated Web
browser that lets users apply chemical knowledge to corresponding 3-D
molecular structures. Except as otherwise required under federal securities
laws and the rules and regulations of the SEC, we do not have any
intention or obligation to update or revise any forward -looking
statements, whether as a result of new information, future events,
changes in assumptions or otherwise. The company's customers include 19 of
the top 20 pharmaceutical companies and 8 of the top 10 biopharmaceutical
companies in the world. NeoTrident has over 300 customers in China , among which include
the largest pharmaceutical companies in China, the best new drug research CROs
(contract research organization), the most famous petroleum giants and all the
main universities and research institutions. (Pink Sheets:PSVI), a research and
development company that manufactures and markets preservative
technologies, today announced the results of tests on its new
environmentally -safe corrosion inhibitor, called MM 818/10. The test results run on August 18, 2004 prove
that the product is VOC free (0. Navy, and it also enables us to now sell the
product into the commercial marketplace," Gary Harrison, Chairman and
Chief Executive Officer stated.

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Specifically designed to foster communications between front-line
life sciences researchers and expert computational chemists , LITHIUM
allows researchers to view, evaluate and share insights on molecular
data among their colleagues. Headquartered in St., Tripos spans the
world with global research operations and an international client
base.com) is the leading Informatics
solutions company in the fields of biological and material sciences in China.com

The National Defense Center for Environmental Excellence was
tasked to support the Naval Surface Warfare Center Carderock Division
in assisting the Department of Defense industrial facilities with
reducing or eliminating emissions and waste associated with
manufacturing, repair and rework activities.

heterocyclic ispace

Therefore, actual
events, outcomes and results may differ materially from what is
expressed or forecast in such forward-looking statements.newscom.com /cgi-bin/prnh/20040705/CNM002LOGO )
The CrossFire Beilstein database is the world's largest compilation of
chemical facts and the MDL Patent Chemistry Database indexes chemical
reactions, substances and substance related information from organic chemistry
and life sciences patent publications.
As an integrated drug R+D outsourcing service company, WuXi PharmaTech
provides discovery and development services to our partners from lead
identification to pre-clinical through our state-of -the-art facilities. There are over
750 scientific staff members and its management team consists of veterans from
U.

Business Editors/Environment Writers

ST. One of the most important tests was the
Adhesion test to determine if the MM 818 technology had any negative
effect on paint adhesion.

nomenclature calorimetry

(Nasdaq:TRPS), a leading provider of drug discovery
informatics products and chemistry research, today announced the
release of LITHIUM(R) 2. All other trademarks mentioned in this document are the
property of their respective owners. SHANGHAI, China, March 17 /Xinhua-PRNewswire/ -- WuXi PharmaTech is
pleased to announce today that it has signed agreements with NeoTrident
Technology and Elsevier MDL to significantly increase the user seats of
CrossFire Beilstein and MDL Patent Chemistry Database platforms, effectively
making WuXi PharmaTech the largest Beilstein industry customer in China. Researchers around the world depend on Elsevier
MDL for innovative and reliable discovery informatics software solutions and
services augmented by 400 Elsevier chemistry and life sciences journals and
related products.elsevier.
The test results proved that the MM 818 technology passed eight
American Society for Testing and Materials (ASTM) tests for a
functional powder coating .

polycyclic evaluated

mdl. is a company that researches,
manufactures and markets preservative products for the food, beverage
and industrial markets. More information about Preservation Sciences
is available on the Company 's Web site at
http://www.

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Tripos and the Tripos logo are registered trademarks of Tripos,
Inc. ft.

Preservation Sciences Announces Rust Inhibitor Test Results from Department of Defense and Another Laboratory

S.

About Preservation Sciences, Inc.

ispace evaluated

WuXi PharmaTech Becomes the Largest Beilstein Customer

Naval Station Mayport
Regional Support Group requested that Preservation Sciences ' flash
rust inhibitor be evaluated. The
first was ASTM D3359 which measures adhesion with tape .00 mg/L VOC's detected). "With these test results we can actively market the
product to paint contractors and water blasters of bridges, ships, oil
platforms, pipes and other metal structures," Mr.

chemists evaluated

Tripos Enhances Computational and Laboratory Chemist Collaboration and Decision Support With LITHIUM 2.1 Release

"The technology is
designed to empower the laboratory chemist and biologist to make
better , faster and more-informed decisions regarding which compounds
to explore and synthesize by providing access to 3-D chemical
information. Louis, Mo.
Dr.''

About WuXi PharmaTech
Founded in 2001, the Shanghai-based WuXi PharmaTech Co. The second
successful adhesion test was ASTM D4541 which is the pull off strength
for adhesion.preservationsciences.

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The new software empowers research
scientists to make faster and more-informed decisions by giving them
unprecedented access to computational research information in a
user-friendly desktop format.

For more information , please contact:

David Yin
WuXi PharmaTech, Public Relations
Tel: +86 -21-5046-4003
Email: yin_xiaojun@pharmatechs.

tcnj nzic

tripos. Words such as
"expects," "anticipates," "projects," "estimates," "intends," "plans,"
"believes," variations of such words and similar expressions are
intended to identify such forward-looking statements.
(Logo: http://www. As the staunchest IP protection champion, WuXi PharmaTech
is well recognized by its collaboration partners for setting high IP standards
in China. The
company has a broad service spectrum ranging from lead generation and
optimization, in vivo and in vitro ADMET profiling, bioanalytical services, to
chemistry process development and large scale manufacturing.----April 21,
2005--Preservation Sciences, Inc.com
CAUTIONARY NOTE: Statements contained in this press release that
are not historical facts are forward-looking statements as the term is
defined in the Private Securities Litigation Reform Act of 1995.

adhesion evaluated

colloid aromatic

WuXi
PharmaTech also has substantially increased the number of installed MDL
ISIS/Base, ISIS/Draw and ISIS for Excel, software for better compound and
database management .

About NeoTrident Technology Ltd.
Preservation Sciences also ran independent studies to prove the
environmentally safe claim regarding VOC (Volatile Organic Compounds). Navy tests give independent verification that the MM 818
technology meets at least 8 ASTM standards for functional powder
coatings.

polycyclic catalysis

These statements
are based on current expectations and projections made by management
and are not guarantees of future performance. ft. For more information, visit http://www.com. These test results enable us to continue to advance the
testing with the U.

calorimetry adhesion

Further information on Tripos can be found at
http://www.

Lingxiao
Cao, General Manager of NeoTrident Technology said.

carotenoid nomenclature

NeoTrident (http://www. Elsevier
is a world-leading publisher of scientific, technical and medical information
products and services.
"The environmental aspects of being VOC free and non-toxic will
become bigger and bigger as more regulations restrict the use of
phosphates, xylenes , acids and petroleum-based products," Mr.

nacs aromatic

LOUIS----

Premier Communications Portal Provides Laboratory Scientists With
Desktop Access to Computational Information

Tripos , Inc. By having access to complex 3-D chemical
information, laboratory researchers can more rapidly decide what
compounds to synthesize or explore -- saving both time and cost. David Lowis, senior
director of discovery informatics at Tripos.

Tripos (Nasdaq:TRPS) combines leading-edge technology and
innovative science to deliver consistently superior chemistry-research
products and services for the biotechnology, pharmaceutical and other
life science industries. Within Tripos'
Discovery Research (DR) business, Tripos' medicinal chemists and
research scientists partner directly with clients in their research
initiatives, leveraging state-of-the-art information technologies and
research facilities., Ltd. and ISO 9001:2000 certified GMP plant in Jinshan Chemical
Industry Development Zone, Shanghai.
NeoTrident systematically provides molecular modeling technological products,
comprehensive chemical information and workflow managing platforms as well as
professional chemical information and intelligence services, respectively.
With the business headquarter firmly rooted in Beijing, NeoTrident branches
its technology support and research center in Shanghai, and running center in
Hong Kong.

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The release contains two components:

LITHIUM Base, the enterprise platform that allows users to
automate repetitive tasks through automatically generated
procedures that can be played back later on the same or other
relevant models and shared with others

LITHIUM Developer, the platform for LITHIUM-based applications
that supports custom interfaces and applications based on
organizations' specific needs

"The philosophy behind LITHIUM is not to transform a research
organization's laboratory scientists into expert computational
scientists, but to deliver modelling results and knowledge to those
researchers who need to use them," said Dr. It also ensures that an organization's computational
chemistry resources are efficiently used and remain focused on their
core expertise: developing high-quality descriptive and predictive
models."

About Tripos, Inc. Unofficial and
unregistered chemistry software and databases use remains prevalent and
unchecked in China.
''As China's world-class drug discovery and development services company,
WuXi PharmaTech has been the staunchest IP protection champion in China from
its inception, therefore we are very pleased to work with it.
Columbia Analytical Services , Inc.S.