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Impurities and reference standards

Halobetasol

Also known as Ulobetasol, 21-chloro diflorasone, CGP 14458

CAS 98651-66-2Formula C22H27ClF2O4Molar mass 428.90 g/mol
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Halobetasol chemical structure, C22H27ClF2O4, CAS 98651-66-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
98651-66-2
Formula
C22H27ClF2O4
Molar mass
428.90 g/mol
HS code
291479
Category
Impurities and reference standards

What is Halobetasol?

Plain description, key identifiers and synonyms

Halobetasol is a corticosteroid hormone.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(6S,8S,9R,10S,11S,13S,14S,16S,17R)-17-(2-chloroacetyl)-6,9-difluoro-11,17-dihydroxy-10,13,16-trimethyl-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-3-one
CAS number
98651-66-2 CAS number cross-checked
Molecular formula
C22H27ClF2O4
UNII
9P6159HM7T
InChIKey
LEHFPXVYPMWYQD-XHIJKXOTSA-N
InChI
InChI=1S/C22H27ClF2O4/c1-11-6-13-14-8-16(24)15-7-12(26)4-5-19(15,2)21(14,25)17(27)9-20(13,3)22(11,29)18(28)10-23/h4-5,7,11,13-14,16-17,27,29H,6,8-10H2,1-3H3/t11-,13-,14-,16-,17-,19-,20-,21-,22-/m0/s1
Canonical SMILES
CC1CC2C3CC(F)C4=CC(=O)C=CC4(C)C3(F)C(O)CC2(C)C1(O)C(=O)CCl
Isomeric SMILES
C[C@H]1C[C@H]2[C@@H]3C[C@@H](C4=CC(=O)C=C[C@@]4([C@]3([C@H](C[C@@]2([C@]1(C(=O)CCl)O)C)O)F)C)F

Synonyms

  • Ulobetasol
  • 21-chloro diflorasone
  • CGP 14458
  • 21-CHLORO-6alpha,9-DIFLUORO-11beta,17-DIHYDROXY-16beta-METHYLPREGNA-1,4-DIENE-3,20-DIONE
  • Ulobetasolum
  • (1R,2S,8S,10S,11S,13S,14R,15S,17S)-14-(2-chloroacetyl)-1,8-difluoro-14,17-dihydroxy-2,13,15-trimethyltetracyclo(8.7.0.02,?.011,1?)heptadeca-3,6-dien-5-one
  • Ulobetasol (INN)
  • Halometasol
  • Halobetasol (Standard)
  • (6alpha,11beta,16beta)-21-chloro-6,9-difluoro-11,17-dihydroxy-16-methylpregna-1,4-diene-3,20-dione
  • Pregna-1,4-diene-3,20-dione,21-chloro-6,9-difluoro-11,17-dihydroxy-16-methyl-, (6a,11b,16b)-
  • Ulobetasol Solution in Acetonitrile, 100ug/mL
  • Halobetasol propionate impurity, 21-chloro diflorasone-

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
428.90 g/molcalc.
Exact mass
428.1566 Dacalc.
LogP (octanol/water)
3.09calc.
Topological polar surface area
74.6 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
2calc.
Heavy atoms
29calc.
Rings
4calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.73calc.
Formal charge
0calc.
Stereocentres
9calc.
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=C1C=CC2C(=C1)CCC1C3CCCC3CCC21

O=C1C=CC2C(=C1)CCC1C3CCCC3CCC21

4 rings, 18 atoms.

956 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.

Halobetasol suppliers

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All 4 suppliers
4 of 4 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

4 suppliers in 4 countries

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Halobetasol 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

  • Vasoconstrictor Agents

Pharmacology

Halobetasol is a Corticosteroid. The mechanism of action of halobetasol is as a Corticosteroid Hormone Receptor Agonist.

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • Active ingredient in FDA approved drug labels

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2914.79Indicative HS code

Halogenated, sulphonated, nitrated or nitrosated derivatives, other

World exports in 2024
$558M
−12.1% vs 2023, imports $608M
2019 to 2024
Top exporters
  1. China41.2%
  2. India * partner reported28.7%
  3. Germany16.7%
Top importers
  1. United States29.1%
  2. Italy9.9%
  3. Switzerland * partner reported8.8%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Halobetasol?

Halobetasol is a corticosteroid hormone.

What is the CAS number of Halobetasol?

The CAS registry number of Halobetasol is 98651-66-2.

What is the molecular formula and weight of Halobetasol?

The molecular formula of Halobetasol is C22H27ClF2O4 and its molar mass is 428.90 g/mol.

What is Halobetasol used for?

Known uses and roles of Halobetasol include cardiovascular drugs in pharmaceuticals and vasoconstrictor agents.

Is Halobetasol hazardous?

No GHS hazard classification for Halobetasol 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 Halobetasol?

Halobetasol is usually classified under HS code 291479 (Halogenated, sulphonated, nitrated or nitrosated derivatives, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Halobetasol?

CompoundList lists 4 suppliers of Halobetasol in Czech Republic, Germany, Nepal and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Halobetasol?

Suppliers quote Halobetasol 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 Halobetasol

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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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