Kainic acid [vinylidene-3H]

[2S-(2a,3b4b)]-2-Carboxy-4-(1-methylethenyl)-3-pyrrolidineacetic acid

Kallidin [Des-Arg10-Leu9] [3,4-prolyl-3,4-3H(N)]

Kallidin [Des-Arg10] [3,4-prolyl-3,4-3H(N)]

(7S)-8-Amino-7-ketononanoic acid [5,6-3H] hydrochloride

(±)-Ketamine [N-methyl-3H] hydrochloride

R41468 [3H], 3-(2-[4-(4-Flurobenzoyl)-1-piperidinyl]ethyl)-2,4(1H,3H)-quinazolinedione hydrochloride

3-Keto-dihydrosphingosine, (2S)-[4,5-3H] hydrochloride

24-Ketocholesterol

7-Ketocholesterol [1,2,6-3H]