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3,3'-Diindolylmethane

Also known as: 3,3'-Methylenebis(1H-indole), 3,3'-Methylenediindole, Bis(3-indolyl)methane, Di(1H-indol-3-yl)methane, DIM, 3,3'-Methylenebisindole, 1H-Indole, 3,3'-methylenebis-, 2-(1H-Indol-3-ylmethyl)-1H-indole, Arundine, Plant Indole

3,3'-Diindolylmethane (CAS 1968-05-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C17H14N2 and a molecular weight of 246.307 g/mol. Key properties include a melting point of 167 °C, a boiling point of 504.8±30.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 232.5±15.8 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1968-05-4
Jingsj CID
J-1132012-0
Molecular Formula
C17H14N2
Molecular Weight
246.307 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point167 °C
Boiling Point504.8±30.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point232.5±15.8 °C
Exact Mass246.115692
PSA31.58000
LogP4.05
Vapor Pressure0.0±1.2 mmHg at 25°C
Refractive Index1.765

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation
  • H413

Activity & Biological Data

TargetAndrogen receptor[1]
Additional Information[1]. Le HT, et al. Plant-derived 3,3'-Diindolylmethane is a strong androgen antagonist in human prostate cancer cells. J Biol Chem. 2003 Jun 6;278(23):21136-45. [2]. Li XJ, et al. 3,3'-Diindolylmethane suppresses the growth of gastric cancer cells via activation of the Hippo signaling pathway. Oncol Rep. 2013 Nov;30(5):2419-26.

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 3,3'-Diindolylmethane?

The CAS number of 3,3'-Diindolylmethane is 1968-05-4.

What are the molecular formula and molecular weight of 3,3'-Diindolylmethane?

3,3'-Diindolylmethane has molecular formula C17H14N2 and molecular weight 246.307 g/mol.

Is 3,3'-Diindolylmethane hazardous?

3,3'-Diindolylmethane has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 3,3'-Diindolylmethane?

For 3,3'-Diindolylmethane, Upstream Products: Indole, Formaldehyde, Indole-3-carbinol; Downstream Products: 5,11-Dihydroindolo[3,2-b]carbazole.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "3,3'-Diindolylmethane (CAS 1968-05-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1132012-0 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.