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Dihydrozeatin has been isolated for the first time from immature seeds of Lupinus luteus. It was revealed to be less active than two other natural cytokinins trans-zeatin and N⁶-isopentenyladenine in several bioassays. Different cytokinin activity between enantiomers of (R)- and (S)-configurations is also known. The unnatural (R)-(+)-antipode always showed higher cytokinin activity than naturally occurring (S)-(-)-dihydrozeatin. Different R)-(+)- and (S)-(-)-dihydrozeatins are also produced by OlChemIm Ltd.

OPTICALLY-ACTIVE DIHYDROZEATINS

R-(+)-DIHYDROZEATIN (R-DZ) [(+)-6-(R)-(4-hydroxy-3-methylbutylamino)purine]

MW 221.26; crystalline; purity > 98% (HPLC)
CAS: 37789-32-5; C₁₀H₁₅N₅O
028 0601	1	mg
028 0602	2	mg
028 0603	2	mg

S-(-)-DIHYDROZEATIN (S-DZ) [(-)-6-(S)-(4-hydroxy-3-methylbutylamino)purine]

MW 221.26; crystalline; purity > 98% (HPLC)
CAS: 14742-97-3; C₁₀H₁₅N₅O
029 0601	1	mg
029 0602	2	mg
029 0603	5	mg

R-(-)-DIHYDROZEATIN RIBOSIDE (R-DZR) [(-)-6-(R)-4-hydroxy-3-methylbutylamino-9-β-D-ribofuranosylpurine]

MW 353.38; crystalline; purity > 97% (HPLC)
CAS: 64070-21-9; C₁₅H₂₃N₅O₅
028 0611	1	mg
028 0612	2	mg
028 0613	5	mg

S-(-)-DIHYDROZEATIN RIBOSIDE (S-DZR) [(-)-6-(S)-4-hydroxy-3-methylbutylamino-9-β-D-ribofuranosylpurine]

MW 353.38; crystalline; purity > 97% (HPLC)
CAS: 64070-22-0; C₁₅H₂₃N₅O₅
029 0611	1	mg
029 0612	2	mg
029 0613	5	mg

R-(-)-DIHYDROZEATIN RIBOSIDE-5'-MONOPHOSPHATE SODIUM SALT (R-DZMP) [(-)-6-(R)-(4-hydroxy-3-methylbutylamino)-9-β-D-ribofuranosylpurine-5'-monophosphate disodium monohydrate]

MW 497.35; crystalline; purity > 95% (HPLC)
CAS: NONE; C₁₅H₂₂N₅Na₂O₈P.H₂O
028 5011	1	mg
028 5012	2	mg
028 5013	5	mg