| Bioactivity | 13-cis-4-Oxoretinoic acid (4-Keto 13-cis-retinoic acid) is a metabolite of vitamin A in human plasma[1]. |
| CAS | 71748-58-8 |
| Formula | C20H26O3 |
| Molar Mass | 314.42 |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | Please store the product under the recommended conditions in the Certificate of Analysis. |
| Reference | [1]. Eckhoff C, et al. Identification and quantitation of all-trans- and 13-cis-retinoic acid and 13-cis-4-oxoretinoic acid in human plasma. J Lipid Res. 1990 Aug;31(8):1445-54. |