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Insecticides and acaricides

Emamectin

Also known as Avermectin B1, 4''-deoxy-4''-(methylamino)-, (4''R)-, (4''R)-4''-Deoxy-4''-(methylamino)avermectin B1, 4''-epiacetylamino-4''-deoxyavermectin B1, (4''R)-

CAS 119791-41-2Formula C49H75NO13Molar mass 886.13 g/molEC 690-357-4
7 suppliers listed
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Emamectin chemical structure, C49H75NO13, CAS 119791-41-2
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
White to off-white powder
Melting point
141 to 146
Density
1.20 at 23 °C /Emamectin benzoate/
Solubility
Log Kow: 5.9 at pH 9, water solubility: 0.1 mg/L at pH 9
HS code
293220
Category
Insecticides and acaricides
Illustrative photo, a white jumbo bulk bag of powder in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Emamectin?

Plain description, key identifiers and synonyms

Emamectin is a chemical substance with the molecular formula C49H75NO13 and a molar mass of 886.13 g/mol. Its CAS registry number is 119791-41-2. The IUPAC name is (1'R,3S,4'S,6S,8'R,10'E,12'S,13'S,14'E,16'E,20'R,21'R,24'S)-2-[(2S)-butan-2-yl]-21',24'-dihydroxy-12'-[(2R,4S,5S,6S)-4-methoxy-5-[(2S,4S,5R,6S)-4-methoxy-6-methyl-5-(methylamino)oxan-2-yl]oxy-6-methyloxan-2-yl]oxy-3,11',13',22'-tetramethylspiro[2,3-dihydropyran-6,6'-3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16,22-tetraene]-2'-one.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(1'R,3S,4'S,6S,8'R,10'E,12'S,13'S,14'E,16'E,20'R,21'R,24'S)-2-[(2S)-butan-2-yl]-21',24'-dihydroxy-12'-[(2R,4S,5S,6S)-4-methoxy-5-[(2S,4S,5R,6S)-4-methoxy-6-methyl-5-(methylamino)oxan-2-yl]oxy-6-methyloxan-2-yl]oxy-3,11',13',22'-tetramethylspiro[2,3-dihydropyran-6,6'-3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16,22-tetraene]-2'-one
CAS number
119791-41-2 CAS number cross-checked
EC number
690-357-4
Molecular formula
C49H75NO13
InChIKey
CXEGAUYXQAKHKJ-MYANALBDSA-N
InChI
InChI=1S/C49H75NO13/c1-12-26(2)44-29(5)18-19-48(63-44)24-35-21-34(62-48)17-16-28(4)43(27(3)14-13-15-33-25-56-46-42(51)30(6)20-36(47(52)59-35)49(33,46)53)60-40-23-38(55-11)45(32(8)58-40)61-39-22-37(54-10)41(50-9)31(7)57-39/h13-16,18-20,26-27,29,31-32,34-46,50-51,53H,12,17,21-25H2,1-11H3/b14-13+,28-16+,33-15+/t26-,27-,29-,31-,32-,34+,35-,36-,37-,38-,39-,40-,41+,42+,43-,44?,45-,46+,48+,49+/m0/s1
Canonical SMILES
CCC(C)C1OC2(C=CC1C)CC1CC(CC=C(C)C(OC3CC(OC)C(OC4CC(OC)C(NC)C(C)O4)C(C)O3)C(C)C=CC=C3COC4C(O)C(C)=CC(C(=O)O1)C34O)O2
Isomeric SMILES
CC[C@H](C)C1[C@H](C=C[C@@]2(O1)C[C@@H]3C[C@H](O2)C/C=C(/[C@H]([C@H](/C=C/C=C/4\CO[C@H]5[C@@]4([C@@H](C=C([C@H]5O)C)C(=O)O3)O)C)O[C@H]6C[C@@H]([C@H]([C@@H](O6)C)O[C@H]7C[C@@H]([C@@H]([C@@H](O7)C)NC)OC)OC)\C)C

Synonyms

  • Avermectin B1, 4''-deoxy-4''-(methylamino)-, (4''R)-
  • (4''R)-4''-Deoxy-4''-(methylamino)avermectin B1
  • 4''-epiacetylamino-4''-deoxyavermectin B1, (4''R)-
  • 4''-epi-methylamino-4''-deoxyavermectin B1

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 powderexp.
Melting point
141 to 146exp.
Density
1.20 at 23 °C /Emamectin benzoate/exp.
Solubility
Log Kow: 5.9 at pH 9, water solubility: 0.1 mg/L at pH 9exp.
Vapour pressure
3.8 × 10⁻⁸ mm Hg at 21 °C /Emamectin benzoate/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
886.13 g/molcalc.
Exact mass
885.5238 Dacalc.
LogP (octanol/water)
5.6calc.
Topological polar surface area
161.9 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
14calc.
Rotatable bonds
9calc.
Heavy atoms
63calc.
Rings
7calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.78calc.
Formal charge
0calc.
Stereocentres
20calc.
Lipinski rule of five
Fails (3 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=C1OC2CC(CC=CC(OC3CCC(OC4CCCCO4)CO3)CC=CC=C3COC4CC=CC1C34)OC1(C=CCCO1)C2

O=C1OC2CC(CC=CC(OC3CCC(OC4CCCCO4)CO3)CC=CC=C3COC4CC=CC1C34)OC1(C=CCCO1)C2

7 rings, 45 atoms.

46 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS classification
Hazard pictograms

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

Emamectin suppliers

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

All 7 suppliers
7 of 7 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

7 suppliers in 4 countries

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Emamectin 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.

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Uses and applications

What the substance is used for, by industry and function

Insecticide.

The benzoate salt of emamectin is approved by the EPA for use in prevention of emerald ash borer in ash trees.

Therapeutic category (veterinary): antiparasitic.

Pharmacological actions

  • Insecticides

How it is made

Preparation: H. Mrozik, United States of America patent 4874749 (1989 to Merck & Co.).

Isolated from fermentation of Streptomyces avermitilis, a naturally occurring soil Actinomycete

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 Emamectin 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 Emamectin is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Emamectin?

Emamectin is a chemical substance with the molecular formula C49H75NO13 and a molar mass of 886.13 g/mol. Its CAS registry number is 119791-41-2.

What is the CAS number of Emamectin?

The CAS registry number of Emamectin is 119791-41-2.

What is the molecular formula and weight of Emamectin?

The molecular formula of Emamectin is C49H75NO13 and its molar mass is 886.13 g/mol.

What is Emamectin used for?

Insecticide. The benzoate salt of emamectin is approved by the EPA for use in prevention of emerald ash borer in ash trees. Therapeutic category (veterinary): antiparasitic.

Is Emamectin hazardous?

No GHS hazard classification for Emamectin 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 Emamectin?

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

Where can I buy Emamectin?

CompoundList lists 7 suppliers of Emamectin in India, China, France and Greece. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Emamectin in India?

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

What is the price of Emamectin?

Suppliers quote Emamectin 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 Emamectin

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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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