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Chlorotrianisene

Also known as Chlortrianizen, Chlortrianisestrol, Chlortrianisen

CAS 569-57-3Formula C23H21ClO3Molar mass 380.87 g/molEC 209-318-6
Chlorotrianisene chemical structure, C23H21ClO3, CAS 569-57-3
2D chemical structure

Key facts

What buyers check first

Appearance
Crystals from methanol
Melting point
114 to 116 °C
Solubility
PRACTICALLY INSOL IN WATER, SOL IN ALCOHOL 0.28 G/100 ML, IN ETHER 3.6 G/100 ML, SOL IN…
HS code
290930
Category
Screening compounds
Illustrative photo, closed blue fibre drums on a pallet in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Chlorotrianisene?

Plain description, key identifiers and synonyms

Chlorotrianisene is a chloroalkene. It has a role as an antineoplastic agent, an estrogen receptor modulator and a xenoestrogen. It derives from a hydride of a stilbene.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-[1-chloro-2,2-bis(4-methoxyphenyl)ethenyl]-4-methoxybenzene
CAS number
569-57-3 CAS number cross-checked
EC number
209-318-6
Molecular formula
C23H21ClO3
UNII
6V5034L121
MDL number
MFCD00048044
InChIKey
BFPSDSIWYFKGBC-UHFFFAOYSA-N
InChI
InChI=1S/C23H21ClO3/c1-25-19-10-4-16(5-11-19)22(17-6-12-20(26-2)13-7-17)23(24)18-8-14-21(27-3)15-9-18/h4-15H,1-3H3
SMILES (canonical and isomeric)
COC1=CC=C(C=C1)C(=C(C2=CC=C(C=C2)OC)Cl)C3=CC=C(C=C3)OC

Synonyms

  • Chlortrianizen
  • Chlortrianisestrol
  • Chlortrianisen
  • TACE
  • Chlorotrianisine
  • Chlorestrolo
  • Chlorotrianizen
  • Chloortrianisestrol
  • Khlortrianizen
  • Clorotrisin
  • Hormonisene
  • Clorestrolo
  • Merbentul
  • Anisene
  • Metace
  • Rianil
  • Chlortrianisoestrolum
  • Chlorotrisin
  • Chlortrianisenum
  • Tace-fn
  • Clorotrianisene
  • Clorotrianiseno
  • Tri-p-anisylchloroethylene
  • Chlorotrianisenum
  • Tace (pharmaceutical)
Show all 36 synonyms
  • Chlorotris(p-methoxyphenyl)ethylene
  • Tris(p-methoxyphenyl)chloroethylene
  • Ethylene, chlorotris(p-methoxyphenyl)-
  • Benzene, 1,1',1''-(1-chloro-1-ethenyl-2-ylidene)tris(4-methoxy)-
  • 1-[2-chloro-1,2-bis(4-methoxyphenyl)ethenyl]-4-methoxybenzene
  • Benzene, 1,1',1''-(1-chloro-1-ethenyl-2-ylidene)tris(4-methoxy-
  • Benzene, 1,1',1''-(1-chloro-1-ethenyl-2-ylidene)tris[4-methoxy-
  • 1-(2-chloro-1,2-bis(4-methoxyphenyl)ethenyl)-4-methoxybenzene
  • Chlortrianisene
  • 1-[1-chloro-2,2-bis(4-methoxyphenyl)ethenyl]-4-methoxybenzene
  • 4,4',4''-(2-chloroethene-1,1,2-triyl)tris(methoxybenzene)

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Crystals from methanolexp.
Odour
ODORLESSexp.
Melting point
114 to 116 °Cexp.
Solubility
PRACTICALLY INSOL IN WATER, SOL IN ALCOHOL 0.28 G/100 ML, IN ETHER 3.6 G/100 ML, SOL IN GLACIAL ACETIC ACID, CARBON TETRACHLORIDE, VEGETABLE OILSexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
380.87 g/molcalc.
Exact mass
380.1179 Dacalc.
LogP (octanol/water)
5.87calc.
Topological polar surface area
27.69 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
6calc.
Heavy atoms
27calc.
Rings
3calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.13calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (1 violation)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, C(=C(c1ccccc1)c1ccccc1)c1ccccc1

C(=C(c1ccccc1)c1ccccc1)c1ccccc1

3 rings, 20 atoms, the Triphenylethylene ring system.

482 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Chlorotrianisene suppliers

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All 2 suppliers

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Where suppliers are based

2 suppliers in 1 country

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Chlorotrianisene price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Pharmacological actions

  • Antineoplastic Agents, Hormonal
  • Estrogens, Non-Steroidal

Roles

  • agonist
  • antineoplastic agent
  • endocrine disruptor
  • estrogen
  • estrogen receptor modulator
  • hormone
  • hormone receptor modulator
  • molecular messenger
  • pharmaceutical
  • receptor modulator
  • sex hormone
  • xenoestrogen

Pharmacology

Chlorotrianisene is an orally bioavailable, highly lipophilic, synthetic triphenylethylene (TPE) derivative and selective estrogen receptor modulator (SERM), with predominantly estrogenic but also antiestrogenic activities. Upon administration, chlorotrianisene binds to estrogen receptors (ER) and, depending on the responsive target cells, either activates or blocks ER activity. This modulates the expression of ER-responsive genes in a tissue-specific manner. This agent may increase bone mineral density, modify the lipid profile and ameliorate vasomotor symptoms. Chlorotrianisene inhibits the pituitary secretion of the gonadotropins luteinizing hormone (LH) and follicle-stimulating hormone (FSH) through a negative feedback mechanism.

How it is made

Prepd by reacting tri-p-anisylethylene or tri-p-anisylethanol with cl in inert solvent: basford & ici british patent 561,508 (1944).

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Chlorotrianisene is traded under.

HS 2909.30Indicative HS code

Aromatic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives

World exports in 2024
$470M
−2.2% vs 2023, imports $432M
2019 to 2024
Top exporters
  1. China45.7%
  2. Germany15.7%
  3. India * partner reported9.9%
Top importers
  1. United States14.3%
  2. China11.8%
  3. India * partner reported8.3%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Chlorotrianisene is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Chlorotrianisene, based on the data on this page

What is Chlorotrianisene?

Chlorotrianisene is a chloroalkene. It has a role as an antineoplastic agent, an estrogen receptor modulator and a xenoestrogen. It derives from a hydride of a stilbene.

Guides for buyers

Practical guides that help when you source, ship or handle Chlorotrianisene

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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