Elacestrant dihydrochloride

    WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 206202

CAS#: 1349723-93-8 (HCl)

Description: Elacestrant , also known as RAD1901, is an orally available, selective estrogen receptor degrader (SERD) and selective estrogen receptor modulator (SERM), with potential antineoplastic and estrogen-like activities. Upon oral administration of higher doses of RAD1901, this agent acts as a SERD, which binds to the estrogen receptor (ER) and induces a conformational change that results in the degradation of the receptor. This may inhibit the growth and survival of ER-expressing cancer cells. At lower doses of this agent, RAD1901 acts as a SERM and has estrogen-like effects in certain tissues, which can both reduce hot flashes and protect against bone loss. In addition, RAD1901 is able to cross the blood-brain barrier (BBB).

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Elacestrant dihydrochloride (also known as RAD1901HCl) is not in stock, but may be available through custom synthesis. For cost-effective reason, minimum 1 gram order is requested. The product will be characterized by NMR, HPLC and MS analysis. Purity (HPLC) is usually >98%. CoA, QC data, MSDS will be provided when product is successfully made. The estimated lead time is 2-3 months. Please send email to sales@medkoo.com to inquire quote.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 206202
Name: Elacestrant dihydrochloride
CAS#: 1349723-93-8 (HCl)
Chemical Formula: C30H40Cl2N2O2
Exact Mass:
Molecular Weight: 531.56
Elemental Analysis: C, 67.79; H, 7.59; Cl, 13.34; N, 5.27; O, 6.02

Related CAS #: 1349723-93-8 (HCl)   722533-56-4 (free base)    

Synonym: RAD1901; RAD-1901; RAD 1901; RAD1901 HCl salt; Elacestrant dihydrochloride

IUPAC/Chemical Name: (R)-6-(2-(ethyl(4-(2-(ethylamino)ethyl)benzyl)amino)-4-methoxyphenyl)-5,6,7,8-tetrahydronaphthalen-2-ol dihydrochloride


InChi Code: InChI=1S/C30H38N2O2.2ClH/c1-4-31-17-16-22-6-8-23(9-7-22)21-32(5-2)30-20-28(34-3)14-15-29(30)26-11-10-25-19-27(33)13-12-24(25)18-26;;/h6-9,12-15,19-20,26,31,33H,4-5,10-11,16-18,21H2,1-3H3;2*1H/t26-;;/m1../s1


Technical Data

Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO, not in water

Shelf Life:
>2 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

Harmonized System Code:

Additional Information



 1: Garner F, Shomali M, Paquin D, Lyttle CR, Hattersley G. RAD1901: a novel, orally bioavailable selective estrogen receptor degrader that demonstrates antitumor activity in breast cancer xenograft models. Anticancer Drugs. 2015 Oct;26(9):948-56. doi: 10.1097/CAD.0000000000000271. PubMed PMID: 26164151; PubMed Central PMCID: PMC4560273.

2: Wardell SE, Nelson ER, Chao CA, Alley HM, McDonnell DP. Evaluation of the pharmacological activities of RAD1901, a selective estrogen receptor degrader. Endocr Relat Cancer. 2015 Oct;22(5):713-24. doi: 10.1530/ERC-15-0287. Epub 2015 Jul 10. PubMed PMID: 26162914; PubMed Central PMCID: PMC4545300.