LETTER TO UNDISCLOSED MENTIONING RADIOACTIVE LSD

• Document Type: SPECIALCOLLECTION
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): 00146366
• Release Decision: RIPPUB
• Original Classification: U
• Document Page Count: 1
• Document Creation Date: January 17, 2025
• Document Release Date: January 15, 1983
• Publication Date: July 13, 1955

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Thank you very- much for your leY:er.�
co�cernln;' ralleactive � LSD.' � At,
tAs t. lrafet- and� we.nted to wait. until �
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� �!!)e. chernlet ue..e.bout the nev �batc.h 'or
w..ke preptrIng. WIthin the ne.lt 3-10 ;aye, 119 of
� 1�oeleb.i v111. te rim,* oontalnin4 0, 5124 or the zuli-
..ct.e.ne,In 1 cc. :Tne.epecifIl ectIvity w111 te L6 -7 mlorc-
c�tiriee per v.:11gram (2 . millicureie per millimol) .
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tend 5-ou only. a reps mIlllosranis of thie LS:), lr,;a
etc,ck, le rkther The- pre f 014 -1h.be.led LS
. IS` 50. --' per mot' aryl covers only cv,Lr expenses for buy
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� Vr4A-reLdIr..act lye' e:etonitrIle 'used for the synthes le
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Witt best regarda
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relaln,
' Sincerely yours �