MOLECULAR ARTS CORPORATION RELEASES NEW 3D MOLECULAR MODEL BUILDER SOFTWARE
FOR WINDOWS

Anaheim, California, May 1, 1995 -- Molecular Arts Corporation (MAC),
announced today the commercial availability of a new version of its
popular Windows software, Molecules-3D for Windows, a 3D Molecular Model
Builder. This new release (Version 2.1) of Molecules-3D is designed for
both students in academia and technical experts in the chemical
industries. Molecules-3D enables you to build, edit, rotate, and transfer
3D models and sophisticated 3D graphic images to (and from) other
applications.

Molecules-3D is an extremely easy-to-use package that offers users 4 major
features:

* 3D Structure Library -- an assortment of 3D models that users
  can customize and expand;
* chemVISAGE -- access sophisticated 3D structure visualization
  and rendering capabilities with the click of a button;
* Coach Lewis -- A structured introduction to Lewis diagrams --
  guides user in constructing accurate 2D Lewis diagrams that can
  be converted to 3D models at the click of a button; and
* 3D Model Builder -- includes a graphical Builder, an interactive
  Visual Editor, 3D Syntax Checker, and 3D Cleanup for structure
  optimizations.

And perhaps the most exciting feature is the extremely low price of only
$29.95

Vice-President of Marketing for Molecular Arts Corporation, Laura Voyles
says of the new release, "Molecules-3D has been designed from the ground
up as an easy-to-use tool that provides both students and experienced
scientists tremendous capabilities for visualizing their molecules.
Chemists struggle daily with representing their research (on 3D molecules)
in 2D formats." She went on to say, "What makes Molecules-3D so exciting
is that it combines the simplicity of a plastic model building kit with
the power of computer modeling in a very affordable package. With
Molecules-3D, students and scientists can visualize molecules of interest
quickly and easily."

Graphical User Interface

By utilizing the popular Windows graphical user interface, Molecules--3D
takes full advantage of this intuitive working environment, making
Molecules-3D easy to learn and use. Build molecules with only a
"point-n-click" of the mouse. Optimize new structures with only a single
mouse click. Switch between Ball-n-Stick, Spacefill, and Wireframe models
with only a single mouse click. Simplicity and ease-of-use were key design
criteria.

TOOL ENHANCEMENTS

Version 2.1 of Molecules-3D marks the addition of 30 new or upgraded
capabilities including:

* Lewis Formula Tool
  - 3D conversion of completed 2D Lewis structures
* Structure Library
  - Expanded structure listings including hydrocarbons, biomolecules,
    organics, acids and bases, as well as crystals and inorganics
* 3D Builder
  - Expanded Periodic Table support
  - Fragment Builder with Preview added
* Cleanup
  - Complete energy minimizer for structure optimization
* 3D Visual Editor
  - Interactive adjustment of selected geometries
* User Interface
  - Toolbars for one-button access to key commands

PRODUCT FEATURES

This latest version of Molecules-3D offers many new features including: an
expandable Structure Library of 100+ 3D molecular structures of common,
scientific, and topical interest; Coach Lewis to guide you through a
process for building accurate 2D Lewis diagrams; illustrated
documentation; customizable molecular parameter settings; streamlined
access to critical features; 1-button Wire-frame, Ball-and-Stick, and
Spacefill rendering; plus expanded menu access to Molecules-3D's many
features.

Construct virtually any molecule in the 3D Builder. Similar in approach to
plastic model kits, just point-n click to add any atom or fragment to an
open valence. In fact Molecules-3D is faster than a plastic kit - it
requires fewer steps! For example, proper bond lengths are set
automatically. And Molecules-3D is more flexible, handling everything from
small organics to large polymers and inorganics with full Periodic Table
access! Plus custom fragments and less-common valence geometries are
easily constructed and added to the Fragment Library.

Molecules-3D is also designed for quick cleanup. The Molecular Syntax
Checker identifies potential structural problems. The Visual 3D Editor
enables rapid evaluation and interactive adjustment of molecular
geometries. And 3D Cleanup provides a fast evaluation of molecular
geometries and forces, automatically adjusting atom positions to provide
more accurate conformations.

Users may also read in 3D structure models from third-party databases or
modeling programs. The program includes multiple rendering styles (wire
frame, ball-n-stick, and space fill) with support for depth cueing,
perspective, shading, and lighting controls. Create beautiful 3D
illustrations of your work using standard Cut-and-Paste commands.

Users also have access to quality hardcopy output provided via support for
Hewlett Packard LaserJet printers, color printers, PostScript devices, HP
plotters - virtually all Microsoft-compatible output devices. Chemists can
create everything from slides and transparencies to lab notebook
annotations, and paper-based documentation.

AVAILABILITY

The commercial release of Molecules-3D (v2.1 ) is concurrent with this
announcement.

PRICE

A single-user license is available for an introductory price of only
$29.95. Included is a 30-day money-back guarantee and FREE technical
support for the first 30 days of ownership. Extended Support Plans are
available.

NORTH AMERICA:
Molecules-3D is available directly from Molecular Arts Corporation.
(714) 634-8100 * FAX (714) 634-1999 * Internet: info@molecules.com

UNITED KINGDOM:
BIT (UK) Ltd, Alderny House, 58 Normandy St, Alton, Hants, GU34 1DE
(0)420-83811 * FAX (0)420-80657

EuroSciSoft, Ltd., 2 Britannia Centre, Pt Pleasant, Wallsend, NE28 6HQ
(0)91-295-3000 * FAX (0) 91-295-3030

Adept Informatics
Bulldog Twyford House, London Rd, Twyford, Berkshire RG10 9HD
(0) 734-344-801 * FAX (0) 734-344-844

GERMANY:
SoftLine GmbH, Renchener StraBe 3, Oberkirch, 77704
(49) 7802-4036 * FAX (49) 7802-5605

ITALY:
SAI Information Technology, Via del Castagni, 4, 00045 Genzano di Roma
(06) 964-0305 * FAX (06) 964-1913

Molecular Arts Corporation, Anaheim, California, is a supplier of desk-top
visualization, documentation, and analysis tools for chemical education
and research. Its business is the development, marketing, and support of
software tools for chemical research. The focus of all product development
activities is to provide researchers with desk-top computing solutions for
their visualization, documentation, and analysis needs.

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