U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

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Showing 91 - 100 of 388 results

Status:
Other

Class (Stereo):
CHEMICAL (ABSOLUTE)

Conditions:

Ergosterol (9alpha: 10beat isomer), lumisterol (9beta: 10alpha isomer), isopyrocalciferol (9beta: 10beta isomer) and pyrocalciferol (9alpha: 10alpha isomer) are all epimers of one another at C-9 and C-10. Isopyrocalciferol and pyrocalciferol are products of over-radiation of the provitamin D. These steroids don’t have biological activity since they are not steroids.
Status:
Other

Class (Stereo):
CHEMICAL (ABSOLUTE)

Status:
Other

Class (Stereo):
CHEMICAL (ABSOLUTE)

Status:
Other

Class (Stereo):
CHEMICAL (UNKNOWN)