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Home> Encyclopedia >Acaricide>Pharmaceutical Intermediates>Insecticide
Emamectin benzoate structure
Emamectin benzoate structure

Emamectin benzoate

Iupac Name:benzoic acid;(1'R,2R,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,5S,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 No.: 155569-91-8
Molecular Weight:888.13
Modify Date.: 2022-12-15 11:56
Introduction: A mixture of semi-synthetic Avermectins. Exists as the anhydrous and various hydrated forms having different crystal morphologies. Insecticide. View more+
1. Names and Identifiers
1.1 Name
Emamectin benzoate
1.2 Synonyms

(1'R,2S,4'S,5S,6R,8'R,10'E,12'S,13'S,14'E,16'E,20'R,21'R,24'S)-6-[(2S)-2-Butanyl]-21',24'-dihydroxy-5,11',13',22'-tetramethyl-2'-oxo-5,6-dihydrospiro[pyran-2,6'-[3,7,19]trioxatetracyclo[15.6.1.1. 0]pentacosa[10,14,16,22]tetraen]-12'-yl 2,6-dideoxy-3-O-methyl-4-O-[2,4,6-trideoxy-3-O-methyl-4-(methylammonio)-α-L-arabino-hexopyranosyl]-α-L-arabino-hexopyranoside benzoate (2aE,4E,5'S,6S,6'R,7S,8E,11R,13S,15S,17aR,20R,20aR,20bS)-20,20b-dihydroxy-5',6,8,19-tetramethyl-6'-[(1S)-1-methylpropyl]-17-oxo-5',6,6',10,11,14,15,17,17a,20,20a,20b-dodecahydro-2H,7H-spiro[11,15-meth (2aE,4E,5'S,6S,6'R,7S,8E,11R,13S,15S,17aR,20R,20aR,20bS)-20,20b-dihydroxy-5',6,8,19-tetramethyl-6'-[(1S)-1-methylpropyl]-17-oxo-5',6,6',10,11,14,15,17,17a,20,20a,20b-dodecahydro-2H,7H-spiro[11,15-methanofuro[4,3,2-pq][2,6]benzodioxacyclooctadecine-13,2'-pyran]-7-yl 2,6-dideoxy-3-O-methyl-4-O-[2,4,6-trideoxy-3-O-methyl-4-(methylammonio)-a-L-arabino-hexopyranosyl]-a-L-arabino-hexopyranoside benzoate (4''R)-4''-DEOXY-4''-(METHYLAMINO)AVERMECTIN B1 BENZOATE 4’’-deoxy-4’’-(methylamino)-avermectinb(4’’r)-avermectinbbenzoate(salt) Avermectin B1, 4-deoxy-4-(methylamino)-, (4R)-, benzoate (salt) Emamectin (Benzoate) Emamectin Benzoate Solution, 1000ppm EMAMECTIN-BENZOATE mk0244 mk244

1.3 CAS No.
155569-91-8
1.4 CID
11650986
1.5 EINECS(EC#)
605-015-1
1.6 Molecular Formula
C49H77NO13 (isomer)
1.7 Inchi
InChI=1S/C49H75NO13.C7H6O2/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;8-7(9)6-4-2-1-3-5-6/h13-16,18-20,26-27,29,31-32,34-46,50-51,53H,12,17,21-25H2,1-11H3;1-5H,(H,8,9)/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
1.8 InChIkey
GCKZANITAMOIAR-XWVCPFKXSA-N
1.9 Canonical Smiles
CCC(C)C1C(C=CC2(O1)CC3CC(O2)CC=C(C(C(C=CC=C4COC5C4(C(C=C(C5O)C)C(=O)O3)O)C)OC6CC(C(C(O6)C)OC7CC(C(C(O7)C)NC)OC)OC)C)C.C1=CC=C(C=C1)C(=O)O
1.10 Isomers Smiles
CC[C@H](C)[C@@H]1[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.C1=CC=C(C=C1)C(=O)O
2. Properties
2.1 Density
1.20 at 23 °C /Emamectin benzoate/
2.1 Melting point
141-146°C
2.1 Boiling point
°Cat760mmHg
2.1 Flash Point
°C
2.1 Precise Quality
1007.56000
2.1 PSA
206.57000
2.1 logP
4.62840
2.1 Chemical Properties
Off-White to Pale Beige Solid
2.2 Decomposition
When heated to decomposition it emits toxic vapors of /Nitrogen oxide/.
2.3 pKa
pKa: 4.18 (acidic, attributed to benzoate counter ion), 8.71 (basic, attributed to emamectin moiety)
2.4 Water Solubility
In water, 0.024 g/L at 25 °C (pH 7) /Emamectin benzoate/
2.5 StorageTemp
Inert atmosphere,Room Temperature
3. Use and Manufacturing
3.1 Usage
A mixture of semi-synthetic Avermectins. Exists as the anhydrous and various hydrated forms having different crystal morphologies. Insecticide.
4. Safety and Handling
4.1 Hazard Codes
T,N,Xi
4.1 Risk Statements
25-36-50-57-58-36/37/38-50/53-23-21
4.1 Safety Statements
26-36-45-60-61-36/37
4.1 RIDADR
UN 2811 6.1/PG 3
4.1 WGK Germany
3
4.1 RTECS
CL1203005
5. MSDS

2.Hazard identification

2.1 Classification of the substance or mixture

Acute toxicity - Oral, Category 3

Acute toxicity - Dermal, Category 3

Serious eye damage, Category 1

Acute toxicity - Inhalation, Category 3

Specific target organ toxicity \u2013 single exposure, Category 1

Specific target organ toxicity \u2013 repeated exposure, Category 1

Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1

Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 1

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word

Danger

Hazard statement(s)

H301+H311+H331 Toxic if swallowed, in contact with skin or if inhaled

H318 Causes serious eye damage

H370 Causes damage to organs

H372 Causes damage to organs through prolonged or repeated exposure

H410 Very toxic to aquatic life with long lasting effects

Precautionary statement(s)
Prevention

P264 Wash ... thoroughly after handling.

P270 Do not eat, drink or smoke when using this product.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

P271 Use only outdoors or in a well-ventilated area.

P260 Do not breathe dust/fume/gas/mist/vapours/spray.

P273 Avoid release to the environment.

Response

P301+P310 IF SWALLOWED: Immediately call a POISON CENTER/doctor/\u2026

P321 Specific treatment (see ... on this label).

P330 Rinse mouth.

P302+P352 IF ON SKIN: Wash with plenty of water/...

P312 Call a POISON CENTER/doctor/\u2026if you feel unwell.

P361+P364 Take off immediately all contaminated clothing and wash it before reuse.

P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

P310 Immediately call a POISON CENTER/doctor/\u2026

P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.

P311 Call a POISON CENTER/doctor/\u2026

P308+P311 IF exposed or concerned: Call a POISON CENTER/doctor/...

P314 Get medical advice/attention if you feel unwell.

P391 Collect spillage.

Storage

P405 Store locked up.

P403+P233 Store in a well-ventilated place. Keep container tightly closed.

Disposal

P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification

none

6. Other Information
6.0 Chemical Properties
Off-White to Pale Beige Solid
6.1 Uses
A mixture of semi-synthetic Avermectins. Exists as the anhydrous and various hydrated forms having different crystal morphologies. Insecticide.
6.2 Uses
An insecticidal heterocyclic reagent
6.3 Description
Emamectin benzoate  is a white or light yellow crystalline powder, which is improved and upgraded from abamectin, but has higher insecticidal activity than abamectin , It has the advantages of super high efficiency, low toxicity (nearly non-toxic preparation), low residue, no pollution and other biological pesticides.
6.4 Chemical Properties
As a new type of antibiotic bio-sourced insecticide, emamectin benzoate has the advantages of broad-spectrum, high efficiency, low toxicity and low residue. It has a good insecticidal effect on lepidopteran pests. The LC90 value range is 0.002~0.89 mg/L. Compared with its lead compound, abamectin, emamectin salt has lower toxicity, and its toxicity to rats is only 1/6 of that of abamectin. It is safe for humans, animals, etc., and is easily degraded at conventional doses.
6.5 Application
Emamectin benzoate/avermectin is often used to control vegetable pests, such as diamondback moth, beet armyworm, and Spodoptera litura. Because of its good control effect, it has been widely used in the prevention and control of cruciferous vegetable pests and effectively controls the lepidopteran The scale of occurrence of the population of insect pests has delayed the evolution of resistance to traditional insecticides.
6.6 Use Classification
Veterinary Drug -> VETERINARY_DRUG; -> JECFA Functional Classes
7. Computational chemical data
  • Molecular Weight: 888.13g/mol
  • Molecular Formula: C49H77NO13
  • Compound Is Canonicalized: True
  • XLogP3-AA: null
  • Exact Mass: 1007.56062088
  • Monoisotopic Mass: 1007.56062088
  • Complexity: 1850
  • Rotatable Bond Count: 10
  • Hydrogen Bond Donor Count: 4
  • Hydrogen Bond Acceptor Count: 16
  • Topological Polar Surface Area: 199
  • Heavy Atom Count: 72
  • Defined Atom Stereocenter Count: 20
  • Undefined Atom Stereocenter Count: 0
  • Defined Bond Stereocenter Count: 3
  • Undefined Bond Stereocenter Count: 0
  • Isotope Atom Count: 0
  • Covalently-Bonded Unit Count: 2
  • CACTVS Substructure Key Fingerprint: AAADcfB+PAAAAAAAAAAAAAAAAAAAASAAAAA0SJECAAAAAEABAAAAHgAQCAAADXzxmAcyCILABgCIAiDSCAACAAAkAAAIiIEICMgbNjaAtRCncQAl8AEfuYfq7OzOgAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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