Document rpEDQZKEnk585J8qkkXGEY9Ye

Vista Chemical Company 900 Threadneedle Houston, Texas 77079-2990 {713) 588-3000 P.O. Box 1 9029 Houston, Texas 77224-9029 Fax (713) 588-3236 June 13, 1991 VISTA Mr. Lindsay Tycer Ethyl Corporation 451 Florida Street Baton Rouge, LA 70801 Dear Lindsay: As we discussed, Vista recently completed TSCA inventory description corrections for our alkylate products including the 3050 Specialty Alkylate you are reviewing. The new inventory description and CAS Number are as follows: Benzene, Mono C10.13 Alkyl, Fractionation Bottom, Light Ends, CAS # 129813-62-3. The MSDS you have is the most current. revising the alkylate MSDS's at this inventory descriptions. We are in the process of time to reflect the new Sincerely, Thomas G. Grumbles, C.I.H. Manager Environmental Affairs dlj VVV 000006562