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Antibiotics and anti-infectives

Monensin

Also known as monensin A, Monensic acid, Monensina

CAS 17090-79-8Formula C36H62O11Molar mass 670.88 g/molEC 241-154-0
GHS signal word: Danger. Pictograms: Acute toxicity (severe) 28 suppliers listed Drug substance
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Monensin chemical structure, C36H62O11, CAS 17090-79-8
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Crystals
Melting point
103 to 105
Solubility
Slightly soluble in water
HS code
294190
Category
Antibiotics and anti-infectives
Illustrative photo, assorted laboratory chemical bottles and jars on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Monensin?

Plain description, key identifiers and synonyms

Monensin A is a spiroketal, monensin A is the major component of monensin, a mixture of antibiotic substances produced by Streptomyces cinnamonensis. An antiprotozoal, it is used as the sodium salt as a feed additive for the prevention of coccidiosis in poultry and as a growth promoter in cattle. It has a role as an ionophore, an antifungal agent and a coccidiostat. It is a monocarboxylic acid, a polyether antibiotic, a cyclic hemiketal and a spiroketal.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2S,3R,4S)-4-[(2S,5R,7S,8R,9S)-2-[(2R,5S)-5-ethyl-5-[(2R,3S,5R)-5-[(2S,3S,5R,6R)-6-hydroxy-6-(hydroxymethyl)-3,5-dimethyloxan-2-yl]-3-methyloxolan-2-yl]oxolan-2-yl]-7-hydroxy-2,8-dimethyl-1,10-dioxaspiro[4.5]decan-9-yl]-3-methoxy-2-methylpentanoic acid
CAS number
17090-79-8 CAS number cross-checked
EC number
241-154-0
Molecular formula
C36H62O11
UNII
906O0YJ6ZP
MDL number
MFCD00799192
InChIKey
GAOZTHIDHYLHMS-KEOBGNEYSA-N
InChI
InChI=1S/C36H62O11/c1-10-34(31-20(3)16-26(43-31)28-19(2)15-21(4)36(41,18-37)46-28)12-11-27(44-34)33(8)13-14-35(47-33)17-25(38)22(5)30(45-35)23(6)29(42-9)24(7)32(39)40/h19-31,37-38,41H,10-18H2,1-9H3,(H,39,40)/t19-,20-,21+,22+,23-,24-,25-,26+,27+,28-,29+,30-,31+,33-,34-,35+,36-/m0/s1
Canonical SMILES
CCC1(C2OC(C3OC(O)(CO)C(C)CC3C)CC2C)CCC(C2(C)CCC3(CC(O)C(C)C(C(C)C(OC)C(C)C(=O)O)O3)O2)O1
Isomeric SMILES
CC[C@]1(CC[C@@H](O1)[C@@]2(CC[C@@]3(O2)C[C@@H]([C@H]([C@H](O3)[C@@H](C)[C@H]([C@H](C)C(=O)O)OC)C)O)C)[C@H]4[C@H](C[C@@H](O4)[C@@H]5[C@H](C[C@H]([C@@](O5)(CO)O)C)C)C

Synonyms

  • monensin A
  • Monensic acid
  • Monensina
  • Monensinum
  • Elancoban
  • Monelan
  • Rumensin 90
  • A 3823A
  • Coban (as sodium salt)
  • Rumensin (as sodium salt)
  • Lilly 673140
  • ATCC 15413
  • Monensin Granulated
  • Coxidin 90
  • Monovet 90
  • Coban 90
  • CycleGuard and Monovet
  • monensin Type A medicated article
  • Pasture Gainer Block 20 R350, Pasture Gainer Block 20 R350 No SE, Pasture Gainer Block 37 R350, Pasture Gainer Block 37 R350 No SE
  • Monensin (INN)
  • Monensine
  • Elancoban [veterinary] (TN)

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
Crystalsexp.
Melting point
103 to 105exp.
Solubility
Slightly soluble in waterexp.

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
670.88 g/molcalc.
Exact mass
670.4292 Dacalc.
LogP (octanol/water)
4.27calc.
Topological polar surface area
153.4 Ųcalc.
Hydrogen bond donors
4calc.
Hydrogen bond acceptors
10calc.
Rotatable bonds
10calc.
Heavy atoms
47calc.
Rings
5calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.97calc.
Formal charge
0calc.
Stereocentres
17calc.
Lipinski rule of five
Passes (1 violation)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, C1CCC(C2CCC(C3CCC(C4CCC5(CCCCO5)O4)O3)O2)OC1

C1CCC(C2CCC(C3CCC(C4CCC5(CCCCO5)O4)O3)O2)OC1

5 rings, 26 atoms.

17 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)

Hazard statements

  • H300Fatal if swallowed.
Precautionary statements (7)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • 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

Monensin suppliers

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

All 28 suppliers
28 of 28 offers
  • Wuhan Xinru Chemical Industry Co., Ltd.
    China, Wuhan ManufacturerUnclaimed profile
    MonensinGrade, purity and minimum order on request
    Price on request
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  • 10X Chem
    United States, San DiegoUnclaimed profile
    MonensinGrade, purity and minimum order on request
    Price on request
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  • 3WAY Pharm Inc
    China, ShanghaiUnclaimed profile
    MonensinGrade, purity and minimum order on request
    Price on request
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  • A2B Chem LLC
    United States, San DiegoUnclaimed profile
    MonensinGrade, purity and minimum order on request
    Price on request
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  • Aa Blocks LLC
    United States, San DiegoUnclaimed profile
    MonensinGrade, purity and minimum order on request
    Price on request
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  • AbaChemScene, LLC
    United States, Monmouth JunctionUnclaimed profile
    MonensinGrade, purity and minimum order on request
    Price on request
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  • Accela ChemBio Inc.
    United States, San DiegoUnclaimed profile
    MonensinGrade, purity and minimum order on request
    Price on request
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  • Acmec Biochemical
    China, ShanghaiUnclaimed profile
    MonensinGrade, purity and minimum order on request
    Price on request
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  • Acorn PharmaTech, LLC
    United States, Redwood CityUnclaimed profile
    MonensinGrade, purity and minimum order on request
    Price on request
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  • AKos Consulting & Solutions
    Germany, LorrachUnclaimed profile
    MonensinGrade, purity and minimum order on request
    Price on request
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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

28 suppliers in 9 countries

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Monensin 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

Veterinary medication:.

Antifungal Agents, Antiprotozoal Agents, Coccidiostats.

FDA approved medicinal feed additive for chicken and turkey for coccidiosis.

Used commercially as a growth promoter in ruminants.

Use classes: Pharmaceuticals, Animal Drugs.

Pharmacological actions

  • Antifungal Agents
  • Antiprotozoal Agents
  • Coccidiostats
  • Proton Ionophores
  • Sodium Ionophores

Roles

  • antifungal agent
  • antiinfective agent
  • antimicrobial agent
  • antimicrobial drug
  • antiparasitic agent
  • antiprotozoal drug
  • biophysical role
  • coccidiostat
  • ionophore
  • membrane transport modulator
  • pharmaceutical

How it is made

Synthesized by the preparation and coupling of three fragments and each prepared from commercially available optically active starting materials. (Pharmacueticals, chiral)

Production: Haney, Hoehn, USA patent 3501568 (1970 to Lily).

Monensin is a major component of the antibiotic complex isolated from Streptomyces cinnamonensis.

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 Monensin is traded under.

HS 2941.90Indicative HS code

Antibiotics, other

World exports in 2024
$6.39B
+2.3% vs 2023, imports $6.97B
2019 to 2024
Top exporters
  1. China39.7%
  2. United States11.3%
  3. Switzerland * partner reported10.9%
Top importers
  1. Italy15.0%
  2. India * partner reported12.0%
  3. China8.7%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Monensin?

Monensin A is a spiroketal, monensin A is the major component of monensin, a mixture of antibiotic substances produced by Streptomyces cinnamonensis. An antiprotozoal, it is used as the sodium salt as a feed additive for the prevention of coccidiosis in poultry and as a growth promoter in cattle.

What is the CAS number of Monensin?

The CAS registry number of Monensin is 17090-79-8.

What is the molecular formula and weight of Monensin?

The molecular formula of Monensin is C36H62O11 and its molar mass is 670.88 g/mol.

What is Monensin used for?

Veterinary medication:. Antifungal Agents, Antiprotozoal Agents, Coccidiostats. FDA approved medicinal feed additive for chicken and turkey for coccidiosis. Used commercially as a growth promoter in ruminants. Use classes: Pharmaceuticals, Animal Drugs.

Is Monensin hazardous?

Monensin carries the GHS signal word "Danger". Main hazards: fatal if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Monensin?

Monensin is usually classified under HS code 294190 (Antibiotics, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Monensin?

CompoundList lists 28 suppliers of Monensin in United States, China, United Kingdom, Australia and 5 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Monensin?

Suppliers quote Monensin 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 Monensin

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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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