2478
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1 gd97.6 USD; (2) 1,10-phenanthrolined100 gd177.4 USD; (3)
4,7-dimethoxy-1,10-phenanthrolined1 gd472.4 USD; (4) (ꢀ)-sparteined
100 mLd164.4 USD; (5) L-prolined100 gd233.4 USD (USD¼US $).
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16. Selected nitrogen ligands’ costs obtained from 2007e2008 Sigmae
Aldrich Catalog (India-Edition): (1) 4,7-dihydroxy-1,10-phenanthrolined