CompoundList
Sign in
Impurities and reference standards

8,9-Dehydroestrone

Also known as 8,9-Dehydro Estrone, Hippulin, 3-hydroxyestra-1,3,5(10),8-tetraen-17-one

CAS 474-87-3Formula C18H20O2Molar mass 268.36 g/mol
Get quotes Safety data
8,9-Dehydroestrone chemical structure, C18H20O2, CAS 474-87-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
474-87-3
Formula
C18H20O2
Molar mass
268.36 g/mol
HS code
291450
Category
Impurities and reference standards

What is 8,9-Dehydroestrone?

Plain description, key identifiers and synonyms

8,9-Dehydroestrone is a chemical substance with the molecular formula C18H20O2 and a molar mass of 268.36 g/mol. Its CAS registry number is 474-87-3. The IUPAC name is (13S,14S)-3-hydroxy-13-methyl-7,11,12,14,15,16-hexahydro-6H-cyclopenta[a]phenanthren-17-one.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(13S,14S)-3-hydroxy-13-methyl-7,11,12,14,15,16-hexahydro-6H-cyclopenta[a]phenanthren-17-one
CAS number
474-87-3 CAS number cross-checkedOther or deprecated CAS: 2911-90-2
Molecular formula
C18H20O2
UNII
7C1N8RKG9F
InChIKey
OUGSRCWSHMWPQE-WMZOPIPTSA-N
InChI
InChI=1S/C18H20O2/c1-18-9-8-14-13-5-3-12(19)10-11(13)2-4-15(14)16(18)6-7-17(18)20/h3,5,10,16,19H,2,4,6-9H2,1H3/t16-,18-/m0/s1
SMILES
C[C@]12CCC3=C([C@@H]1CCC2=O)CCC4=C3C=CC(=C4)O

Synonyms

  • 8,9-Dehydro Estrone
  • Hippulin
  • 3-hydroxyestra-1,3,5(10),8-tetraen-17-one
  • (13S,14S)-3-hydroxy-13-methyl-7,11,12,14,15,16-hexahydro-6H-cyclopenta[a]phenanthren-17-one
  • 3-hydroxy-estra-1,3,5(10),8-tetraen-17-one
  • Delta-8,9-Dehydro Estrone
  • delta8-Dehydraestrone
  • Estratetraenone
  • (+-)-delta8-Dehydraestrone
  • ?8-Isoequilin
  • ?8-Dehydroestrone
  • Estrone Impurity N91
  • delta8-isoequilin
  • delta8-dehydroestrone
  • (+-)-3-Hydroxyestra-1,3,5(10),8-tetraen-17-one
  • rac-Delta-8,9-Dehydro Estrone
  • Estra-1,3,5(10),8-tetraen-17-one, 3-hydroxy-, (+-)-
  • delta8,9-dehydroestrone
  • Estra-1,3,5(10),8-tetraen-3-ol-17-one
  • 13beta-Methyl-3-hydroxygona-1,3,5(10),8-tetraen-17-one
  • Estra-1,3,5(10),8-tetraen-17-one, 3-hydroxy-
  • 13beta-Methyl-3-hydroxygona-1,3,5(10), 8-tetraen-17-one
  • 14-isoestra-1,3,5(10),8-tetraen-3-ol-17-one, 8,9-Dehydroestrone

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)
3.87calc.
Topological polar surface area
37.3 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
20calc.
Rings
4calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.5calc.
Formal charge
0calc.
Stereocentres
2calc.
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, O=C1CCC2C3=C(CCC12)c1ccccc1CC3

O=C1CCC2C3=C(CCC12)c1ccccc1CC3

4 rings, 18 atoms.

7 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.

8,9-Dehydroestrone suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

No supplier listings yet

Post one free request and suppliers who make or trade 8,9-Dehydroestrone can send you quotes. Your contact details stay private until you accept a quote.

Request quotesSell this chemical

8,9-Dehydroestrone price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

Get latest price

Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

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 8,9-Dehydroestrone is traded under.

HS 2914.50Indicative HS code

Ketone-phenols and ketones with other oxygen function

World exports in 2024
$438M
+10.9% vs 2023, imports $420M
2019 to 2024
Top exporters
  1. China50.5%
  2. India * partner reported11.6%
  3. United States11.3%
Top importers
  1. United States20.8%
  2. Germany10.0%
  3. Netherlands8.6%

* Partner reported figures, a lower bound.

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

The HS code shown for 8,9-Dehydroestrone is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 8,9-Dehydroestrone, based on the data on this page

What is 8,9-Dehydroestrone?

8,9-Dehydroestrone is a chemical substance with the molecular formula C18H20O2 and a molar mass of 268.36 g/mol. Its CAS registry number is 474-87-3. The IUPAC name is (13S,14S)-3-hydroxy-13-methyl-7,11,12,14,15,16-hexahydro-6H-cyclopenta[a]phenanthren-17-one.

What is the CAS number of 8,9-Dehydroestrone?

The CAS registry number of 8,9-Dehydroestrone is 474-87-3. Other or deprecated CAS numbers: 2911-90-2.

What is the molecular formula and weight of 8,9-Dehydroestrone?

The molecular formula of 8,9-Dehydroestrone is C18H20O2 and its molar mass is 268.36 g/mol.

Is 8,9-Dehydroestrone hazardous?

No GHS hazard classification for 8,9-Dehydroestrone 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 8,9-Dehydroestrone?

8,9-Dehydroestrone is usually classified under HS code 291450 (Ketone-phenols and ketones with other oxygen function). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 8,9-Dehydroestrone?

Post a free request on CompoundList and suppliers of 8,9-Dehydroestrone will send you quotes. Your contact details stay private until you accept a quote.

What is the price of 8,9-Dehydroestrone?

Suppliers quote 8,9-Dehydroestrone 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 8,9-Dehydroestrone

Get quotes for 8,9-Dehydroestrone

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell 8,9-Dehydroestrone
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of 8,9-Dehydroestrone with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/8-9-dehydroestrone-474-87-3" title="8,9-Dehydroestrone structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Impurities and reference standards or HS code 291450

Price on request
Free quotes, contact stays private
Get quotes