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Steroids and sterols

Diendiol

Also known as 11 beta,21-dihydroxy-4,17(20)-pregnadien-3-one, Pregna-4,17(20)-dien-3-one, 11,21-dihydroxy-, (11beta)-, (8S,9S,10R,11S,13S,14S,17Z)-11-hydroxy-17-(2-hydroxyethylidene)-10,13-dimethyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one

CAS 3494-53-9Formula C21H30O3Molar mass 330.47 g/molEC 222-489-1
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Diendiol chemical structure, C21H30O3, CAS 3494-53-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
3494-53-9
Formula
C21H30O3
Molar mass
330.47 g/mol
EC number
222-489-1
HS code
293729
Category
Steroids and sterols

What is Diendiol?

Plain description, key identifiers and synonyms

Diendiol is a 3-hydroxy steroid. It has a role as an androgen.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(8S,9S,10R,11S,13S,14S,17Z)-11-hydroxy-17-(2-hydroxyethylidene)-10,13-dimethyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one
CAS number
3494-53-9Other or deprecated CAS: 3103-13-7
EC number
222-489-1
Molecular formula
C21H30O3
InChIKey
SBMHTRUNPKWTLU-PKJGFKEFSA-N
InChI
InChI=1S/C21H30O3/c1-20-9-7-15(23)11-14(20)3-5-16-17-6-4-13(8-10-22)21(17,2)12-18(24)19(16)20/h8,11,16-19,22,24H,3-7,9-10,12H2,1-2H3/b13-8-/t16-,17-,18-,19+,20-,21+/m0/s1
Canonical SMILES
CC12CC(O)C3C(CCC4=CC(=O)CCC43C)C1CCC2=CCO
Isomeric SMILES
C[C@]12CCC(=O)C=C1CC[C@@H]3[C@@H]2[C@H](C[C@]\4([C@H]3CC/C4=C/CO)C)O

Synonyms

  • 11 beta,21-dihydroxy-4,17(20)-pregnadien-3-one
  • Pregna-4,17(20)-dien-3-one, 11,21-dihydroxy-, (11beta)-
  • (8S,9S,10R,11S,13S,14S,17Z)-11-hydroxy-17-(2-hydroxyethylidene)-10,13-dimethyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one
  • 11-beta,21-Dihydroxypregna-4,17(20)-dien-3-one

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
330.47 g/molcalc.
Exact mass
330.2195 Dacalc.
LogP (octanol/water)
3.41calc.
Topological polar surface area
57.53 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
1calc.
Heavy atoms
24calc.
Rings
4calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.76calc.
Formal charge
0calc.
Stereocentres
6calc.
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=C1CCC2C1CCC1C3CCC(=O)C=C3CCC21

C=C1CCC2C1CCC1C3CCC(=O)C=C3CCC21

4 rings, 19 atoms.

20 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.

Diendiol suppliers

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Diendiol 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

Roles

  • agonist
  • androgen
  • hormone
  • molecular messenger
  • sex hormone

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 Diendiol is traded under.

HS 2937.29Indicative HS code

Steroidal hormones, their derivatives and structural analogues, other

World exports in 2024
$2.32B
+5.7% vs 2023, imports $2.41B
2019 to 2024
Top exporters
  1. Belgium25.3%
  2. United States24.9%
  3. China13.0%
Top importers
  1. Italy18.0%
  2. Canada13.0%
  3. Belgium12.2%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Diendiol is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Diendiol?

Diendiol is a 3-hydroxy steroid. It has a role as an androgen.

What is the CAS number of Diendiol?

The CAS registry number of Diendiol is 3494-53-9. Other or deprecated CAS numbers: 3103-13-7.

What is the molecular formula and weight of Diendiol?

The molecular formula of Diendiol is C21H30O3 and its molar mass is 330.47 g/mol.

What is Diendiol used for?

Known uses and roles of Diendiol include agonist, androgen, hormone, molecular messenger and sex hormone.

Is Diendiol hazardous?

No GHS hazard classification for Diendiol 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 Diendiol?

Diendiol is usually classified under HS code 293729 (Steroidal hormones, their derivatives and structural analogues, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Diendiol?

Post a free request on CompoundList and suppliers of Diendiol will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Diendiol?

Suppliers quote Diendiol 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 Diendiol

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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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