CompoundList
Sign in
Hormones and steroids

Finasteride

Also known as Proscar, Propecia, Finastid

CAS 98319-26-7Formula C23H36N2O2Molar mass 372.55 g/molEC 620-534-3
GHS signal word: Danger. Pictograms: Harmful or irritant, Serious health hazard, Hazardous to the environment 174 suppliers listed Drug substance
Get quotes Compare 174 suppliers
Finasteride chemical structure, C23H36N2O2, CAS 98319-26-7
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
White to off-white crystalline solid
Melting point
252 to 254
Solubility
Freely sol in chloroform, DMSO, ethanol, methanol, n-propanol, sparingly sol in propylen…
HS code
293750
Category
Hormones and steroids
Illustrative photo, colourless crystals in small glass vials on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Finasteride?

Plain description, key identifiers and synonyms

Finasteride is an aza-steroid that is a synthetic drug for the treatment of benign prostatic hyperplasia. It has a role as an androgen antagonist, an EC 1.3.1.22 [3-oxo-5alpha-steroid 4-dehydrogenase (NADP(+))] inhibitor and an antihyperplasia drug. It is an aza-steroid, a 3-oxo steroid and a delta-lactam. It derives from a hydride of a 5alpha-androstane.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(1S,3aS,3bS,5aR,9aR,9bS,11aS)-N-tert-butyl-9a,11a-dimethyl-7-oxo-1,2,3,3a,3b,4,5,5a,6,9b,10,11-dodecahydroindeno[5,4-f]quinoline-1-carboxamide
CAS number
98319-26-7 CAS number cross-checked
EC number
620-534-3
Molecular formula
C23H36N2O2
UNII
57GNO57U7G
MDL number
MFCD00869737
InChIKey
DBEPLOCGEIEOCV-WSBQPABSSA-N
InChI
InChI=1S/C23H36N2O2/c1-21(2,3)25-20(27)17-8-7-15-14-6-9-18-23(5,13-11-19(26)24-18)16(14)10-12-22(15,17)4/h11,13-18H,6-10,12H2,1-5H3,(H,24,26)(H,25,27)/t14-,15-,16-,17+,18+,22-,23+/m0/s1
Canonical SMILES
CC(C)(C)NC(=O)C1CCC2C3CCC4NC(=O)C=CC4(C)C3CCC12C
Isomeric SMILES
C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@@H]2C(=O)NC(C)(C)C)CC[C@@H]4[C@@]3(C=CC(=O)N4)C

Synonyms

  • Proscar
  • Propecia
  • Finastid
  • Prostide
  • Chibro-Proscar
  • Finasterida
  • Finpecia
  • Finasteridum
  • MK 906
  • N-tert-Butyl-3-oxo-4-aza-5alpha-androst-1-ene-17beta-carboxamide
  • (5alpha,17beta)-(1,1-Dimethylethyl)-3-oxo-4-azaandrost-1-ene-17-carboxamide
  • N-(2-Methyl-2-propyl)-3-oxo-4-aza-5-alpha-androst-1-ene-17-beta-carboxamide
  • 4-Azaandrost-1-ene-17-carboxamide, N-(1,1-dimethylethyl)-3-oxo-, (5alpha,17beta)-
  • Entadfi component finasteride
  • Propeshia
  • Chibro Proscar
  • Aindeem
  • Urprosan
  • Pro-Cure
  • (1S,2R,7R,10S,11S,14S,15S)-N-tert-butyl-2,15-dimethyl-5-oxo-6-azatetracyclo(8.7.0.0^(2,7).0^(11,15))heptadec-3-ene-14-carboxamide
  • (1S,2R,7R,10S,11S,14S,15S)-N-tert-butyl-2,15-dimethyl-5-oxo-6-azatetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-3-ene-14-carboxamide
  • (5Alpha,17beta)-N-(1,1-dimethylethyl)-3-oxo-4-azaandrost-1-ene-17-carboxamide
  • (1S,2R,7R,10S,11S,14S,15S)-N-tert-butyl-2,15-dimethyl-5-oxo-6-azatetracyclo(8.7.0.02,7.011,15)heptadec-3-ene-14-carboxamide
  • N-tert-Butyl-3-oxo-4-aza-5alpha-androst-1-en-17beta-carboxamide
  • (1S,3aS,3bS,5aR,9aR,9bS,11aS)-N-tert-butyl-9a,11a-dimethyl-7-oxo-1,2,3,3a,3b,4,5,5a,6,9b,10,11-dodecahydroindeno[5,4-f]quinoline-1-carboxamide
Show all 35 synonyms
  • (4aR,4bS,6aS,7S,9aS,9bS,11aR)-N-(tert-butyl)-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,7,8,9,9a,9b,10,11,11a-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carboxamide
  • (4aR,4bS,6aS,7S,9aS,9bS,11aR)-N-tert-butyl-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,7,8,9,9a,9b,10,11,11a-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carboxamide
  • Andozac
  • Propecia (TN)
  • Proscar (TN)
  • MK 0906
  • Finasteride CRS
  • 17beta-(N-tert-butylcarbamoyl)-4-aza-5 alpha-androst-1-en-3-one
  • Finasteride (Proscar)
  • Finasteride (Standard)

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
White to off-white crystalline solidexp.
Melting point
252 to 254exp.
Solubility
Freely sol in chloroform, DMSO, ethanol, methanol, n-propanol, sparingly sol in propylene glycol, polyethylene glycol 400, very slightly sol in 0.1N hydrogen chloride, 0.1N sodium hydroxide, water.exp.

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
372.55 g/molcalc.
Exact mass
372.2777 Dacalc.
LogP (octanol/water)
3.81calc.
Topological polar surface area
58.2 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
1calc.
Heavy atoms
27calc.
Rings
4calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.83calc.
Formal charge
0calc.
Stereocentres
7calc.
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(CCC3C4CCCC4CCC23)N1

O=C1C=CC2C(CCC3C4CCCC4CCC23)N1

4 rings, 18 atoms.

35 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H302Harmful if swallowed.
  • H360May damage fertility or the unborn child.
  • H360DMay damage the unborn child.
  • H372Causes damage to organs through prolonged or repeated exposure.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (13)
  • P203Obtain, read and follow all safety instructions before use.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P318If exposed or concerned, get medical advice.
  • P319Get medical help if you feel unwell.
  • P330Rinse mouth.
  • P391Collect spillage.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

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

Full safety data and first aid

Finasteride suppliers

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

All 174 suppliers
30 of 30 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

174 suppliers in 26 countries

Send one request to many suppliers

Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.

Choose suppliersPost a request

Finasteride 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

Medication: Treatment of benign prostatic hypertrophy.

Pharmacological actions

  • 5-alpha Reductase Inhibitors
  • Urological Agents

Roles

  • androgen antagonist
  • antagonist
  • antihyperplasia drug
  • enzyme inhibitor
  • hormone antagonist
  • hormone receptor modulator
  • pharmaceutical
  • receptor modulator

Pharmacology

Finasteride is a 5-alpha Reductase Inhibitor. The mechanism of action of finasteride is as a 5-alpha Reductase Inhibitor.

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 Finasteride is traded under.

HS 2937.50Indicative HS code

Prostaglandins, thromboxanes and leukotrienes, their derivatives and structural analogues

World exports in 2024
$270M
+9.1% vs 2023, imports $304M
2019 to 2024
Top exporters
  1. Hungary22.8%
  2. Czech Republic21.6%
  3. South Korea14.6%
Top importers
  1. Japan17.0%
  2. Italy13.1%
  3. Germany10.4%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Finasteride?

Finasteride is an aza-steroid that is a synthetic drug for the treatment of benign prostatic hyperplasia. It has a role as an androgen antagonist, an EC 1.3.1.22 [3-oxo-5alpha-steroid 4-dehydrogenase (NADP(+))] inhibitor and an antihyperplasia drug. It is an aza-steroid, a 3-oxo steroid and a delta-lactam.

What is the CAS number of Finasteride?

The CAS registry number of Finasteride is 98319-26-7.

What is the molecular formula and weight of Finasteride?

The molecular formula of Finasteride is C23H36N2O2 and its molar mass is 372.55 g/mol.

What is Finasteride used for?

Medication: Treatment of benign prostatic hypertrophy.

Is Finasteride hazardous?

Finasteride carries the GHS signal word "Danger". Main hazards: harmful if swallowed, may damage fertility or the unborn child, may damage the unborn child. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Finasteride?

Finasteride is usually classified under HS code 293750 (Prostaglandins, thromboxanes and leukotrienes, their derivatives and structural analogues). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Finasteride?

CompoundList lists 174 suppliers of Finasteride in China, India, United States, Germany and 22 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Finasteride in India?

41 suppliers in India list Finasteride on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Finasteride?

Suppliers quote Finasteride 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 Finasteride

Get quotes for Finasteride

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Finasteride
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 Finasteride 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/finasteride-98319-26-7" title="Finasteride 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 Hormones and steroids or HS code 293750

174 suppliers
Free quotes, contact stays private
Get quotes