C00021826

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".'. I en cuclcsin3 odditicasl Inlomtlon Ceveloped curic3 tha Inieial ocrcening cf co=pounes chat your coapaay subaltted to tho Ageacy 1a accordsnro vlth our present acice=nnt,

You vill noto aiso thit. thore is ineluded a resubuisslco ol data on truso toxlcity scrceoing (iatravcnous tosicity ot coipetnes

FolloJinz receipt of your lotter end you: obscrvatlon that tha Coses required to procuso obeervaulo c!lasts vore high, I requested tho leboratory to re-check thso resules. Apparontly arithirntic crrars had boaa coauitted by tto techaielans.

Inlorivtloa of a sluilar nature Is also Irclused on
pata cn thia ccpound vas laadvortently onltted frol tho provlous data cont to you.

Any nddlticnal data cn thejo conpounds vill, of couiso, bo sent to you.. Isecnvlllo, I would bo happy to reccive any othir corcats that you hava ol tho work thus far..

Binccroly youro,

C00021826

OFTEN/CHICKIST

Feec-Sar 19, 1557