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Aromatic building blocks

Diethylstilbesterol

Also known as (Z,E)-Diethylstilbestrol, cis-Diethyl Stilbestrol, alpha,alpha'-Diethyl-4,4'-stilbenediol-d4

CAS 6898-97-1Formula C18H20O2Molar mass 268.36 g/mol
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Diethylstilbesterol chemical structure, C18H20O2, CAS 6898-97-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
6898-97-1
Formula
C18H20O2
Molar mass
268.36 g/mol
HS code
290729
Category
Aromatic building blocks

What is Diethylstilbesterol?

Plain description, key identifiers and synonyms

Diethylstilbesterol is a chemical substance with the molecular formula C18H20O2 and a molar mass of 268.36 g/mol. Its CAS registry number is 6898-97-1. The IUPAC name is 4-[4-(4-hydroxyphenyl)hex-3-en-3-yl]phenol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-[4-(4-hydroxyphenyl)hex-3-en-3-yl]phenol
CAS number
6898-97-1 CAS number cross-checkedOther or deprecated CAS: 56-53-1
Molecular formula
C18H20O2
InChIKey
RGLYKWWBQGJZGM-UHFFFAOYSA-N
InChI
InChI=1S/C18H20O2/c1-3-17(13-5-9-15(19)10-6-13)18(4-2)14-7-11-16(20)12-8-14/h5-12,19-20H,3-4H2,1-2H3
SMILES (canonical and isomeric)
CCC(=C(CC)C1=CC=C(C=C1)O)C2=CC=C(C=C2)O

Synonyms

  • (Z,E)-Diethylstilbestrol
  • cis-Diethyl Stilbestrol
  • alpha,alpha'-Diethyl-4,4'-stilbenediol-d4
  • Phenol, 4,4'-(1,2-diethyl-1,2-ethenediyl)bis-
  • Stilbestrol, DES
  • Stilbesterol, DES
  • Diethylstilbestrol BP
  • Diethylstilboestrol (DE)
  • 4,4'-(3-Hexene-3,4-diyl)diphenol
  • DivK1c_000519
  • 4-[1-ethyl-2-(4-hydroxyphenyl)but-1-enyl]phenol
  • (E)-3,4-Bis(4-hydroxyphenyl)-3-hexene, (E)-4,4'-(1,2-Diethyl-1,2-ethenediyl)bisphenol, DES

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

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

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
268.36 g/molcalc.
Exact mass
268.1463 Dacalc.
LogP (octanol/water)
4.83calc.
Topological polar surface area
40.46 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
4calc.
Heavy atoms
20calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.22calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)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(=Cc1ccccc1)c1ccccc1

C(=Cc1ccccc1)c1ccccc1

2 rings, 14 atoms, the Stilbene ring system.

2,005 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.

Diethylstilbesterol suppliers

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All 4 suppliers
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Where suppliers are based

4 suppliers in 2 countries

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Diethylstilbesterol 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

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 Diethylstilbesterol is traded under.

HS 2907.29Indicative HS code

Polyphenols, phenol-alcohols, other

World exports in 2024
$535M
−27.0% vs 2023, imports $565M
2019 to 2024
Top exporters
  1. India * partner reported17.7%
  2. Germany16.5%
  3. Japan15.8%
Top importers
  1. United States13.1%
  2. Japan8.0%
  3. Belgium7.9%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Diethylstilbesterol?

Diethylstilbesterol is a chemical substance with the molecular formula C18H20O2 and a molar mass of 268.36 g/mol. Its CAS registry number is 6898-97-1. The IUPAC name is 4-[4-(4-hydroxyphenyl)hex-3-en-3-yl]phenol.

What is the CAS number of Diethylstilbesterol?

The CAS registry number of Diethylstilbesterol is 6898-97-1. Other or deprecated CAS numbers: 56-53-1.

What is the molecular formula and weight of Diethylstilbesterol?

The molecular formula of Diethylstilbesterol is C18H20O2 and its molar mass is 268.36 g/mol.

What is Diethylstilbesterol used for?

Known uses and roles of Diethylstilbesterol include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Diethylstilbesterol hazardous?

No GHS hazard classification for Diethylstilbesterol is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Diethylstilbesterol?

Diethylstilbesterol is usually classified under HS code 290729 (Polyphenols, phenol-alcohols, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Diethylstilbesterol?

CompoundList lists 4 suppliers of Diethylstilbesterol in United States and China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Diethylstilbesterol?

Suppliers quote Diethylstilbesterol on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

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

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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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