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  3. 3,3'-Diindolylmethane

3,3'-Diindolylmethane (Synonyms: DIM; Arundine; HB 236)

Cat. No.: HY-15758 Purity: 98.74%
Handling Instructions

3,3'-Diindolylmethane is a strong, pure androgen receptor (AR) antagonist.

For research use only. We do not sell to patients.

3,3'-Diindolylmethane Chemical Structure

3,3'-Diindolylmethane Chemical Structure

CAS No. : 1968-05-4

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10 mM * 1 mL in DMSO USD 66 In-stock
Estimated Time of Arrival: December 31
100 mg USD 60 In-stock
Estimated Time of Arrival: December 31
200 mg USD 72 In-stock
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500 mg USD 96 In-stock
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Based on 1 publication(s) in Google Scholar

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3,3'-Diindolylmethane is a strong, pure androgen receptor (AR) antagonist.

IC50 & Target

Androgen receptor[1]

In Vitro

3,3'-Diindolylmethane (DIM) is a strong antagonist of androgen receptor (AR) function but exhibits less than obvious structural similarity to the endogenous AR ligand, dihydrotestosterone (DHT). 3,3'-Diindolylmethane is a major digestive product of indole-3-carbinol, a potential anticancer component of cruciferous vegetables. 3,3'-Diindolylmethane exhibits potent antiproliferative and antiandrogenic properties in androgen-dependent human prostate cancer cells. 3,3'-Diindolylmethane suppresses cell proliferation of LNCaP cells and inhibits DHT stimulation of DNA synthesis. Moreover, 3,3'-Diindolylmethane inhibits endogenous PSA transcription and reduced intracellular and secreted PSA protein levels induced by DHT in LNCaP cells. Also, 3,3'-Diindolylmethane inhibits, in a concentration-dependent manner, the DHT-induced expression of a prostate-specific antigen promoter-regulated reporter gene construct in transiently transfected LNCaP cells. Co-treatment with 50 μM 3,3'-Diindolylmethane partially inhibits the translocation of AR induced by DHT treatment and showed distribution of the AR to be both cytoplasmic and nuclear. Furthermore, 3,3'-Diindolylmethane treatment prevents the formation of AR foci in the nucleus. 3,3'-Diindolylmethane alone produces a predominantly cytoplasmic distribution of fluorescence[1].

In Vivo

Mice are randomized into two groups and are treated daily s.c. with either vehicle or 3,3'-Diindolylmethane (10 mg/kg) for 30 days. Tumor volume and the weight of mice are recorded once every 3 days using calipers. 3,3'-Diindolylmethane (DIM) treatment resulted in a marked inhibition of SNU-484 xenograft tumor growth. Notably, the body weight of mice from both groups did not significantly differ from the vehicle control following 30 days of drug exposure, suggesting that 3,3'-Diindolylmethane has no severe toxicity to the mice. Taken together, these findings demonstrate that 3,3'-Diindolylmethane administration significantly inhibited SNU-484 xenograft growthin vivo mediated by the inactivation of YAP[2].

Molecular Weight









Room temperature in continental US; may vary elsewhere


4°C, protect from light, stored under nitrogen

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)

Solvent & Solubility
In Vitro: 

DMSO : ≥ 100 mg/mL (405.99 mM)

H2O : < 0.1 mg/mL (insoluble)

*"≥" means soluble, but saturation unknown.

Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 4.0599 mL 20.2996 mL 40.5992 mL
5 mM 0.8120 mL 4.0599 mL 8.1198 mL
10 mM 0.4060 mL 2.0300 mL 4.0599 mL
*Please refer to the solubility information to select the appropriate solvent.
In Vivo:
  • 1.

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2.5 mg/mL (10.15 mM); Clear solution

  • 2.

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in saline)

    Solubility: 2.5 mg/mL (10.15 mM); Suspended solution; Need ultrasonic

  • 3.

    Add each solvent one by one:  10% DMSO    90% corn oil

    Solubility: ≥ 2.5 mg/mL (10.15 mM); Clear solution

*All of the co-solvents are provided by MCE.
Cell Assay

The human prostate adenocarcinoma cell lines LNCaP-FGC and PC-3 are grown as adherent monolayers in 10% FBS-DMEM, supplemented with 4.0 g/L glucose and 3.7 g/L sodium bicarbonate in a humidified incubator at 37°C and 5% CO2, and passaged at ~80% confluency. Cultures used in subsequent experiments are at less than 40 passages. Cells grown in stripped conditions are in 5% DCC-FBS-DMEM base supplemented with 4 g/L glucose, 3.7 g/L sodium bicarbonate, and 0.293 g/L L-glutamine. Before the beginning of the treatments, cells are depleted of androgen for 4-7 days in medium composed of DMEM base without phenol red and with 4 g/L glucose and 3.7 g/L sodium bicarbonate. During the depletion period, medium is changed every 48 h. Treatments are administered by the addition of 1 μL of a 1,000-fold concentrated solution of 3,3'-Diindolylmethane in Me2SO/mL of medium. Once the treatment period started, medium is changed daily to counter possible loss of readily metabolized compounds[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Administration

Four-week-old female SPF/VAF immunodeficient mice are injected subcutaneously (s.c.) into the right flank with 0.1 mL Matrigel containing 3.5×106 human gastric cancer cells (SNU-484). The mice are randomized into 2 groups 1 week after tumor implantation: i) the untreated control group (n=5, DMSO in 50 μL PBS daily) and ii) the 3,3'-Diindolylmethane-treated group (n=5, 10 mg/kg in 50 μL PBS once daily). Gastric primary tumors are excised, and the final tumor volume is measured once every 3 days using a caliper and calculated as (width)2×length/2. The experiment is terminated on day 39. Half of the tumor tissue is prepared for western blotting and the other half is snap frozen in liquid nitrogen and stored at −80°C.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

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