Date published: 2026-2-24

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all-trans-3,4-Didehydro Retinoic Acid (CAS 4159-20-0)

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Alternate Names:
all-trans-Vitamin A2 Acid; (all-E)-3,7-dimethyl-9-(2,6,6-trimethyl-1,3-cyclohexadien-1-yl)-2,4,6,8-nonatetraenoic acid; 3-Dehydroretinoic acid
CAS Number:
4159-20-0
Molecular Weight:
298.42
Molecular Formula:
C20H26O2
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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all-trans-3,4-Didehydro Retinoic Acid, also known as 3,4-Didehydroretinoic acid (3,4-DHRA), is an organic substance found in nature and obtained from retinol, known as vitamin A. This powerful synthetic retinoid is extensively employed in laboratory investigations to examine the impact of retinoid-based compounds on biological systems. Researchers hypothesize that its mechanism involves attaching to the retinoic acid receptor (RAR). The binding of all-trans-3,4-Didehydro Retinoic Acid to RAR triggers the activation of the receptor, resulting in alterations in gene expression as well as various biochemical and physiological effects.


all-trans-3,4-Didehydro Retinoic Acid (CAS 4159-20-0) References

  1. Quantitative axial profiles of retinoic acid in the embryonic mouse spinal cord: 9-cis retinoic acid only detected after all-trans-retinoic acid levels are super-elevated experimentally.  |  Ulven, SM., et al. 2001. Dev Dyn. 222: 341-53. PMID: 11747070
  2. Retinoids: essential nutrients for the central nervous system.  |  Blomhoff, R. 2002. Nutr Health. 16: 35-9. PMID: 12083410
  3. Delayed effects of pre- and early-life time exposure to polychlorinated biphenyls on tadpoles of two amphibian species (Xenopus laevis and Rana temporaria).  |  Gutleb, AC., et al. 1999. Environ Toxicol Pharmacol. 8: 1-14. PMID: 21781936
  4. Consequences of metal exposure on retinoid metabolism in vertebrates: a review.  |  Defo, MA., et al. 2014. Toxicol Lett. 225: 1-11. PMID: 24291063
  5. Glochidion littorale Leaf Extract Exhibits Neuroprotective Effects in Caenorhabditis elegans via DAF-16 Activation.  |  Bagoudou, AF., et al. 2021. Molecules. 26: PMID: 34203560
  6. Triple chemical derivatization strategy assisted liquid chromatography-mass spectrometry for determination of retinoic acids in human serum.  |  Gong, GG., et al. 2022. Talanta. 245: 123474. PMID: 35462137
  7. Retinoid signalling and axial patterning during early vertebrate embryogenesis.  |  Durston, AJ., et al. 1997. Cell Mol Life Sci. 53: 339-49. PMID: 9137625

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

all-trans-3,4-Didehydro Retinoic Acid, 2.5 mg

sc-500519
2.5 mg
$354.00

all-trans-3,4-Didehydro Retinoic Acid, 25 mg

sc-500519A
25 mg
$2497.00