Letter | Published:

Vitamin B4 and Adenine

Nature volume 131, pages 617618 (29 April 1933) | Download Citation



IN a recent preliminary communication, R. Tschesche1 has directed attention to the similarity between adenine hydrochloride and the crystals isolated by Barnes, O'Brien and Reader2. These crystals were specifically stated by them to have vitamin B4 activity (10γ per diem per rat), but no claim was made that they were actually vitamin B4. Tschesche does not state whether the specimen of crystals obtained by him was biologically active.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.


  1. 1.

    , Ber., 66, 581; 1933.

  2. 2.

    , and , Biochem. J., 26, 2055 ; 1932.

  3. 3.

    , and , Biochem. J., 27, 232 ; 1933

  4. 4.

    Details will be published when complete.

Download references

Author information


  1. Dept. of Biochemistry, Oxford. April 19.

    • R. D. HEARD
    • , H. W. KINNERSLEY
    • , J. R. O'BRIEN
    • , R. A. PETERS
    •  & V. READER


  1. Search for R. D. HEARD in:

  2. Search for H. W. KINNERSLEY in:

  3. Search for J. R. O'BRIEN in:

  4. Search for R. A. PETERS in:

  5. Search for V. READER in:

About this article

Publication history




Further reading


By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.