Title: Zeatin
CAS Registry Number: 1637-39-4
CAS Name: (2E)-2-Methyl-4-(1H-purin-6-ylamino)-2-buten-1-ol
Additional Names: trans-zeatin
Molecular Formula: C10H13N5O
Molecular Weight: 219.24
Percent Composition: C 54.78%, H 5.98%, N 31.94%, O 7.30%
Literature References: Naturally occurring plant growth hormone; cytokinin originally isolated from sweet corn kernels, Zea mays L. Gramineae. Isoln and structure determn: D. S. Letham et al., Proc. Chem. Soc. London 1964, 230. Synthesis: G. Shaw, D. V. Wilson, ibid. 231; G. Shaw et al., J. Chem. Soc. C 1966, 921; J. Corse, J. Kuhnle, Synthesis 1972, 618; G. M. Gray, ibid. 1983, 488; idem, EP 86454 (1983 to J. T. Baker). Inhibition of mitochondrial function: C. O. Miller, Plant Physiol. 69, 1274 (1982); translocation in soybean explants: L. Noodén, D. S. Letham, J. Plant Growth Regul. 2, 265 (1984). Reviews: D. S. Letham, Annu. Rev. Plant Physiol. 18, 349-363 (1967); D. S. Letham, L. M. S. Palni, ibid. 34, 163-197 (1983).
Properties: Crystals from water, mp 207-208°. uv max in 0.1M HCl: 207, 275 nm (e 14500, 14650); at pH 7.2: 212, 270 nm (e 17050, 16150); in 0.1M NaOH: 220, 276 nm (e 15900, 14650).
Melting point: mp 207-208°
Absorption maximum: uv max in 0.1M HCl: 207, 275 nm (e 14500, 14650); at pH 7.2: 212, 270 nm (e 17050, 16150); in 0.1M NaOH: 220, 276 nm (e 15900, 14650) |