Molecular model of the structure of vitamin B12, 1957-1959.

1957-1959 in England

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Model showing the structure of vitamin B12. General view on grey background. From a colour transparency in the Science
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Model showing the structure of vitamin B12

This model was displayed in the 1958 Exhibition in Brussels to illustrate the structure of vitamin B12 as determined by chemical means.

Sir Alexander Todd (1907 - 1997) and his group in Cambridge studied the chemical reactions of vitamin B12.


Experimental Chemistry
Object Number:
molecular models
Todd, A.R.

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