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Points from Foregoing Letters

    Naturevolume 135page1078 (1935) | Download Citation



    FURTHER steps towards the elucidation of the chemical structure of vitamin D (calciferol) are reported by Prof. I. M. Heilbron, K. M. Samant and F. S. Spring. They suggest a three-ring formula and indicate the probable position of the double bonds and of the hydroxyl group.

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