Title: Ancymidol
CAS Registry Number: 12771-68-5
CAS Name: a-Cyclopropyl-a-(4-methoxyphenyl)-5-pyrimidinemethanol
Additional Names: a-cyclopropyl-4-methoxy-a-(pyrimidin-5-yl)benzyl alcohol
Manufacturers' Codes: EL-531
Trademarks: A-Rest (SePRO); Reducymol (SePRO)
Molecular Formula: C15H16N2O2
Molecular Weight: 256.30
Percent Composition: C 70.29%, H 6.29%, N 10.93%, O 12.48%
Literature References: Prepn: J. D. Davenport et al., FR 1569940; H. M. Taylor et al., US 3818009 (1969, 1974 to Lilly). Properties and efficacy: M. Snel, J. V. Gramlich, Meded. Fac. Landbouwwet. Rijksuniv. Gent 38, 1033 (1973). GLC determn: R. Frank, E. W. Day, Anal. Methods Pestic. Plant Growth Regul. 8, 475 (1976); S. D. West, E. W. Day, J. Assoc. Off. Anal. Chem. 60, 904 (1977). Studies on the specificity and site of action: R. C. Coolbaugh et al., Plant Physiol. 62, 571 (1978).
Properties: Cryst. solid, mp 110-111°. Vapor pressure at 50°: <1 ´ 10-6 mm Hg. Thermally stable. Soly in water at 25°: ~650 mg/l. Readily sol in acetone, methanol, ethyl acetate, chloroform, acetonitrile. Moderately sol in aromatic hydrocarbons; slightly sol in saturated hydrocarbons. LD50 in rats, mice (mg/kg): 4500, 5000 orally (Snel, Gramlich).
Melting point: mp 110-111°
Toxicity data: LD50 in rats, mice (mg/kg): 4500, 5000 orally (Snel, Gramlich)
Use: Plant growth regulator.

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