Accelrys to Showcase Materials Studio 5.0 at AIChE (American Institute of Chemical Engineers) 2009 Annual Meeting November 8th-13th

SAN DIEGO, CA--(Marketwire - November 3, 2009) - Accelrys, Inc. (NASDAQ: ACCL), a leading provider of scientific business intelligence software and services, will participate in the AIChE (American Institute of Chemical Engineers) Annual Meeting being held at the Gaylord Opryland Hotel in Nashville, Tennessee from November 8 to 13, 2009. The Accelrys exhibit in booth #18 will showcase the new features and enhancements found in Materials Studio 5.0. Providing a single, integrated platform for advanced modeling and simulation, Materials Studio enables scientists to more easily and efficiently perform highly complex research.

Accelrys presentations include:

-- Nov. 9 at 5:35 p.m.: "High-Throughput Catalysis and Information Management," Michael Doyle (Tennessee C) -- Nov. 12 at 10:35 a.m.: "Virtual Screening for Lithium Ion Battery Electrolyte Additives," Nick Reynolds (Bayou B)

In addition, Accelrys is proud to note that two organizations currently using Accelrys solutions will be presenting at this year's AIChE:

-- Nov. 11 at 3:40 p.m.: "Chemical Erosion of Silica Nitride Ceramics," Jenny Synowczynski, U.S. Army Research Laboratory (Delta Ballroom B) -- Nov. 12 at 8:30 a.m.: "Utilization of Molecular Simulations in Aerospace Materials: Simulation of Thermoset Resin/Graphite Interactions," Andrea Browning, Boeing (Jackson A)

AIChE is the world's leading organization for chemical engineering professionals, with nearly 40,000 members from 93 countries.

For more information about the 2009 AIChE Annual Meeting, visithttp://www.aiche.org/Conferences/AnnualMeeting/index.aspx

About Accelrys, Inc.

Headquartered in San Diego, California, Accelrys develops scientific business intelligencesoftware and solutions for the life sciences, energy, chemicals, aerospace, and consumer products industries. Customers include many Fortune 500 companies and other commercial entities, as well as academic and government entities. Accelrys has a vast portfolio of computer-aided design modeling and simulation offerings which assist customers in conducting scientific experiments 'in silico' in order to reduce the duration and cost of discovering and developing new drugs and materials. Its scientific business intelligence platform underlies the company's computer-aided design modeling and simulation offerings. The Accelrys platform can be used with both Accelrys and competitive products, as well as with customers' proprietary predictive science products. Its flexibility, ease-of-use and advanced chemical, text and image analysis and reporting capabilities enable customers to mine, aggregate, analyze and report scientific data from disparate sources, thereby better utilizing scientific data within their organizations. For more information about Accelrys, visit http://accelrys.com/