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Antibiotics and anti-infectives

(-)-Santonin

Also known as santonin, alpha-Santonin, Semenen

CAS 481-06-1Formula C15H18O3Molar mass 246.31 g/molEC 207-560-7
GHS signal word: Danger. Pictograms: Acute toxicity (severe), Harmful or irritant 26 suppliers listed Drug substance
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(-)-Santonin chemical structure, C15H18O3, CAS 481-06-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
481-06-1
Formula
C15H18O3
Molar mass
246.31 g/mol
EC number
207-560-7
HS code
293220
Category
Antibiotics and anti-infectives

What is (-)-Santonin?

Plain description, key identifiers and synonyms

Alpha-santonin is a santonin that is 3a,5,5a,9b-tetrahydronaphtho[1,2-b]furan-2,8(3H,4H)-dione substituted by methyl groups at positions 3, 5a and 9. It has a role as a plant metabolite. It is a santonin and a botanical anti-fungal agent.

(-)-Santonin is a drug used to expel parasitic worms by paralyzing them.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(3S,3aS,5aS,9bS)-3,5a,9-trimethyl-3a,4,5,9b-tetrahydro-3H-benzo[g][1]benzofuran-2,8-dione
CAS number
481-06-1 CAS number cross-checked
EC number
207-560-7
Molecular formula
C15H18O3
UNII
1VL8J38ERO
MDL number
MFCD00135865
InChIKey
XJHDMGJURBVLLE-BOCCBSBMSA-N
InChI
InChI=1S/C15H18O3/c1-8-10-4-6-15(3)7-5-11(16)9(2)12(15)13(10)18-14(8)17/h5,7-8,10,13H,4,6H2,1-3H3/t8-,10-,13-,15-/m0/s1
Canonical SMILES
CC1=C2C3OC(=O)C(C)C3CCC2(C)C=CC1=O
Isomeric SMILES
C[C@H]1[C@@H]2CC[C@]3(C=CC(=O)C(=C3[C@H]2OC1=O)C)C

Synonyms

  • santonin
  • alpha-Santonin
  • Semenen
  • Santoninum
  • Santoninic anhydride
  • L-alpha-Santonin
  • (3S,3aS,5aS,9bS)-3,5a,9-trimethyl-3a,5,5a,9b-tetrahydronaphtho[1,2-b]furan-2,8(3H,4H)-dione
  • (3S,3aS,5aS,9bS)-3,5a,9-trimethyl-3a,4,5,9b-tetrahydro-3H-benzo[g][1]benzofuran-2,8-dione
  • (3S,3as,5as)-3,5a,9-trimethyl-3a,4,5,5a-tetrahydronaphtho(1,2-b)furan-2,8(3H,9bh)-dione
  • (3S,3aS,5aS,9bS)-3,5a,9-trimethyl-3a,4,5,9b-tetrahydro-3H-benzo(g)(1)benzofuran-2,8-dione
  • (3S,3aS,5aS,9bS)-3,5a,9-trimethyl-3a,5,5a,9b-tetrahydronaphtho(1,2-b)furan-2,8(3H,4H)-dione
  • Naphtho(1,2-b)furan-2,8(3H,4H)-dione, 3a,5,5a,9b-tetrahydro-3,5a,9-trimethyl-, (3S-(3alpha,3aalpha,5abeta,9bbeta))-
  • (3R,3aR,5aR,9bR)-3,5a,9-trimethyl-3a,4,5,9b-tetrahydro-3H-benzo(g)(1)benzofuran-2,8-dione
  • (-)-alpha-Santonin
  • (-)-Santonine
  • (3S,3aS,5aS,9bS)-3a,5,5a,9b-Tetrahydro-3,5a,9-trimethylnaphtho[1,2-b]furan-2,8(3H,4H)-dione
  • (3S,3aS,5aS,9bS)-3,5a,9-trimethyl-3a,4,5,9b-tetrahydro-3H-benzo[g]benzofuran-2,8-dione
  • (3S,3aS,5aS,9bS)-3,5a,9-trimethyl-3a,4,5,5a-tetrahydronaphtho[1,2-b]furan-2,8(3H,9bH)-dione
  • naphtho[1,2-b]furan-2,8(3H,4H)-dione, 3a,5,5a,9b-tetrahydro-3,5a,9-trimethyl-, (3S,3aS,5aS,9bS)-
  • Santonin-a
  • Santonin CRS
  • (3S,3as,5as,9bs)-3a,5,5a,9b-tetrahydro-3,5a,9-trimethylnaphtho(1,2-b)furan-2,8(3H,4H)-dione
  • Naphtho(1,2-b)furan-2,8(3H,4H)-dione, 3a,5,5a,9b-tetrahydro-3,5a,9-trimethyl-, (3S,3aS,5aS,9bS)-
  • ()-alpha-Santonin
  • Santonin (Standard)
Show all 27 synonyms
  • Santonine
  • Santonin (JP18)

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
246.31 g/molcalc.
Exact mass
246.1256 Dacalc.
LogP (octanol/water)
2.42calc.
Topological polar surface area
43.37 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
0calc.
Heavy atoms
18calc.
Rings
3calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.6calc.
Formal charge
0calc.
Stereocentres
4calc.
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=CC2CCC3CC(=O)OC3C2=C1

O=C1C=CC2CCC3CC(=O)OC3C2=C1

3 rings, 15 atoms.

9 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
  • H310 + H330Fatal in contact with skin. Fatal if inhaled.
  • H310Fatal in contact with skin.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H330Fatal if inhaled.
  • H335May cause respiratory irritation.
Precautionary statements (25)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P262Do not get in eyes, on skin, or on clothing.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P284In case of inadequate ventilation wear respiratory protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P319Get medical help if you feel unwell.
  • P320Specific treatment is urgent (see supplemental first aid instructions on the label).
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P361 + P364Take off immediately all contaminated clothing. And wash it before reuse.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • 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

(-)-Santonin suppliers

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Where suppliers are based

26 suppliers in 6 countries

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(-)-Santonin 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

  • Antinematodal Agents

Roles

  • eukaryotic metabolite
  • metabolite
  • plant metabolite

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU Cosmetics Regulation Annex II, prohibited in cosmetics
    Name: alpha-Santonin [(3S,5aR,9bS)-3,3a,4,5,5a,9b-hexahydro-3,5a,9-trimethylnaphto[1,2-b]furan-2,8-dione], Ref no: 217, Annex ref: II/217
  • Active ingredient in FDA approved drug labels

United States

  • TSCA inventory (USA)
    Status: Inactive in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code (-)-Santonin is traded under.

HS 2932.20Indicative HS code

Lactones

World exports in 2024
$1.97B
−4.7% vs 2023, imports $2.07B
2019 to 2024
Top exporters
  1. China56.3%
  2. India * partner reported7.4%
  3. Germany7.3%
Top importers
  1. United States14.2%
  2. India * partner reported13.5%
  3. Brazil8.5%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about (-)-Santonin, based on the data on this page

What is (-)-Santonin?

Alpha-santonin is a santonin that is 3a,5,5a,9b-tetrahydronaphtho[1,2-b]furan-2,8(3H,4H)-dione substituted by methyl groups at positions 3, 5a and 9. It has a role as a plant metabolite. It is a santonin and a botanical anti-fungal agent.

What is the CAS number of (-)-Santonin?

The CAS registry number of (-)-Santonin is 481-06-1.

What is the molecular formula and weight of (-)-Santonin?

The molecular formula of (-)-Santonin is C15H18O3 and its molar mass is 246.31 g/mol.

What is (-)-Santonin used for?

Known uses and roles of (-)-Santonin include eukaryotic metabolite, metabolite, plant metabolite and antinematodal agents.

Is (-)-Santonin hazardous?

(-)-Santonin carries the GHS signal word "Danger". Main hazards: harmful if swallowed, fatal in contact with skin. fatal if inhaled, fatal in contact with skin. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of (-)-Santonin?

(-)-Santonin is usually classified under HS code 293220 (Lactones). This is indicative, confirm it with your customs broker before shipping.

Where can I buy (-)-Santonin?

CompoundList lists 26 suppliers of (-)-Santonin in United States, China, Netherlands, Canada and 2 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy (-)-Santonin in India?

1 supplier in India list (-)-Santonin on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of (-)-Santonin?

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Guides for buyers

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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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