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ChemicalBook >> CAS DataBase List >> MILBEMECTIN A3

MILBEMECTIN A3

MILBEMECTIN A3 price.
  • $222 - $4647
  • Product name: MILBEMECTIN A3
  • CAS: 51596-10-2
  • MF: C31H44O7
  • MW: 528.69
  • EINECS:
  • MDL Number:MFCD04972569
  • Synonyms:milbemectine a3;MILBEMECTIN A3;milbemycinb-2 ;(25R)-25-Methyl-5β-hydroxy-5-demethoxy-28-O,6β-cyclomilbemycin B;(6R,25R)-5-O-Demethyl-28-deoxy-6,28-epoxy-25-methylmilbemycin B;Antibiotic B-41A3;Milbemycin α1;B 41A3, MilbeMycin alpha1, MilbeMectin
Price29 Properties Safety Information Description
29 prices
Selected condition：
Brand
  • aablocks
  • American Custom Chemicals Corporation
  • Biosynth
  • Cayman Chemical
  • ChemScene
  • Usbiological
Package
  • 1mg
  • 2mg
  • 5mg
  • 10mg
  • 25mg
  • 50mg
  • 100mg
  • Manufactureraablocks
  • Product numberAA00D8YX
  • Product description(2R,2a'E,2a1'S,4'E,5S,6R,6'R,8'E,11'R,15'S,17a'R,20'R,20a'R)-2a1',20'-Dihydroxy-5,6,6',8',19'-pentamethyl-2a1',3,4,5,6,6',7',10',11',14',15',17a',20',20a'-tetradecahydro-2'H,17'H-spiro[pyran-2,13'-[11,15]methano[1,5]dioxacyclooctadecino[9,8,7-cd]benzofuran]-17'-one >98%
  • Packaging1mg
  • Price$263
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00D8YX
  • Product description(2R,2a'E,2a1'S,4'E,5S,6R,6'R,8'E,11'R,15'S,17a'R,20'R,20a'R)-2a1',20'-Dihydroxy-5,6,6',8',19'-pentamethyl-2a1',3,4,5,6,6',7',10',11',14',15',17a',20',20a'-tetradecahydro-2'H,17'H-spiro[pyran-2,13'-[11,15]methano[1,5]dioxacyclooctadecino[9,8,7-cd]benzofuran]-17'-one >98%
  • Packaging5mg
  • Price$602
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00D8YX
  • Product description(2R,2a'E,2a1'S,4'E,5S,6R,6'R,8'E,11'R,15'S,17a'R,20'R,20a'R)-2a1',20'-Dihydroxy-5,6,6',8',19'-pentamethyl-2a1',3,4,5,6,6',7',10',11',14',15',17a',20',20a'-tetradecahydro-2'H,17'H-spiro[pyran-2,13'-[11,15]methano[1,5]dioxacyclooctadecino[9,8,7-cd]benzofuran]-17'-one >98%
  • Packaging10mg
  • Price$935
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00D8YX
  • Product description(2R,2a'E,2a1'S,4'E,5S,6R,6'R,8'E,11'R,15'S,17a'R,20'R,20a'R)-2a1',20'-Dihydroxy-5,6,6',8',19'-pentamethyl-2a1',3,4,5,6,6',7',10',11',14',15',17a',20',20a'-tetradecahydro-2'H,17'H-spiro[pyran-2,13'-[11,15]methano[1,5]dioxacyclooctadecino[9,8,7-cd]benzofuran]-17'-one >98%
  • Packaging25mg
  • Price$1835
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00D8YX
  • Product description(2R,2a'E,2a1'S,4'E,5S,6R,6'R,8'E,11'R,15'S,17a'R,20'R,20a'R)-2a1',20'-Dihydroxy-5,6,6',8',19'-pentamethyl-2a1',3,4,5,6,6',7',10',11',14',15',17a',20',20a'-tetradecahydro-2'H,17'H-spiro[pyran-2,13'-[11,15]methano[1,5]dioxacyclooctadecino[9,8,7-cd]benzofuran]-17'-one >98%
  • Packaging50mg
  • Price$2913
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00D8YX
  • Product description(2R,2a'E,2a1'S,4'E,5S,6R,6'R,8'E,11'R,15'S,17a'R,20'R,20a'R)-2a1',20'-Dihydroxy-5,6,6',8',19'-pentamethyl-2a1',3,4,5,6,6',7',10',11',14',15',17a',20',20a'-tetradecahydro-2'H,17'H-spiro[pyran-2,13'-[11,15]methano[1,5]dioxacyclooctadecino[9,8,7-cd]benzofuran]-17'-one >98%
  • Packaging100mg
  • Price$4647
  • Updated2026-05-28
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberAPI0016453
  • Product descriptionMILBEMYCIN ALPHA3 95.00%
  • Packaging5MG
  • Price$503.09
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth
  • Product numberFM157340
  • Product descriptionMilbemectin A3
  • Packaging2mg
  • Price$1375
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberFM157340
  • Product descriptionMilbemectin A3
  • Packaging1mg
  • Price$825
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberFM157340
  • Product descriptionMilbemectin A3
  • Packaging10mg
  • Price$4537.5
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberFM157340
  • Product descriptionMilbemectin A3
  • Packaging5mg
  • Price$2475
  • Updated2026-06-04
  • Buy
  • ManufacturerCayman Chemical
  • Product number18360
  • Product descriptionMilbemycin A3 ≥95%
  • Packaging5mg
  • Price$977
  • Updated2024-03-01
  • Buy
  • ManufacturerCayman Chemical
  • Product number18360
  • Product descriptionMilbemycin A3 ≥85%
  • Packaging5mg
  • Price$1075
  • Updated2026-04-30
  • Buy
  • ManufacturerCayman Chemical
  • Product number18360
  • Product descriptionMilbemycin A3 ≥95%
  • Packaging1mg
  • Price$326
  • Updated2024-03-01
  • Buy
  • ManufacturerCayman Chemical
  • Product number18360
  • Product descriptionMilbemycin A3 ≥85%
  • Packaging1mg
  • Price$359
  • Updated2026-04-30
  • Buy
  • ManufacturerChemScene
  • Product numberCS-0107719
  • Product descriptionMilbemycin A3 ≥98%
  • Packaging1mg
  • Price$222
  • Updated2026-06-04
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA00D8YX (2R,2a'E,2a1'S,4'E,5S,6R,6'R,8'E,11'R,15'S,17a'R,20'R,20a'R)-2a1',20'-Dihydroxy-5,6,6',8',19'-pentamethyl-2a1',3,4,5,6,6',7',10',11',14',15',17a',20',20a'-tetradecahydro-2'H,17'H-spiro[pyran-2,13'-[11,15]methano[1,5]dioxacyclooctadecino[9,8,7-cd]benzofuran]-17'-one >98% 1mg $263 2026-05-28 Buy
aablocks AA00D8YX (2R,2a'E,2a1'S,4'E,5S,6R,6'R,8'E,11'R,15'S,17a'R,20'R,20a'R)-2a1',20'-Dihydroxy-5,6,6',8',19'-pentamethyl-2a1',3,4,5,6,6',7',10',11',14',15',17a',20',20a'-tetradecahydro-2'H,17'H-spiro[pyran-2,13'-[11,15]methano[1,5]dioxacyclooctadecino[9,8,7-cd]benzofuran]-17'-one >98% 5mg $602 2026-05-28 Buy
aablocks AA00D8YX (2R,2a'E,2a1'S,4'E,5S,6R,6'R,8'E,11'R,15'S,17a'R,20'R,20a'R)-2a1',20'-Dihydroxy-5,6,6',8',19'-pentamethyl-2a1',3,4,5,6,6',7',10',11',14',15',17a',20',20a'-tetradecahydro-2'H,17'H-spiro[pyran-2,13'-[11,15]methano[1,5]dioxacyclooctadecino[9,8,7-cd]benzofuran]-17'-one >98% 10mg $935 2026-05-28 Buy
aablocks AA00D8YX (2R,2a'E,2a1'S,4'E,5S,6R,6'R,8'E,11'R,15'S,17a'R,20'R,20a'R)-2a1',20'-Dihydroxy-5,6,6',8',19'-pentamethyl-2a1',3,4,5,6,6',7',10',11',14',15',17a',20',20a'-tetradecahydro-2'H,17'H-spiro[pyran-2,13'-[11,15]methano[1,5]dioxacyclooctadecino[9,8,7-cd]benzofuran]-17'-one >98% 25mg $1835 2026-05-28 Buy
aablocks AA00D8YX (2R,2a'E,2a1'S,4'E,5S,6R,6'R,8'E,11'R,15'S,17a'R,20'R,20a'R)-2a1',20'-Dihydroxy-5,6,6',8',19'-pentamethyl-2a1',3,4,5,6,6',7',10',11',14',15',17a',20',20a'-tetradecahydro-2'H,17'H-spiro[pyran-2,13'-[11,15]methano[1,5]dioxacyclooctadecino[9,8,7-cd]benzofuran]-17'-one >98% 50mg $2913 2026-05-28 Buy
aablocks AA00D8YX (2R,2a'E,2a1'S,4'E,5S,6R,6'R,8'E,11'R,15'S,17a'R,20'R,20a'R)-2a1',20'-Dihydroxy-5,6,6',8',19'-pentamethyl-2a1',3,4,5,6,6',7',10',11',14',15',17a',20',20a'-tetradecahydro-2'H,17'H-spiro[pyran-2,13'-[11,15]methano[1,5]dioxacyclooctadecino[9,8,7-cd]benzofuran]-17'-one >98% 100mg $4647 2026-05-28 Buy
American Custom Chemicals Corporation API0016453 MILBEMYCIN ALPHA3 95.00% 5MG $503.09 2021-12-16 Buy
Biosynth FM157340 Milbemectin A3 2mg $1375 2026-06-04 Buy
Biosynth FM157340 Milbemectin A3 1mg $825 2026-06-04 Buy
Biosynth FM157340 Milbemectin A3 10mg $4537.5 2026-06-04 Buy
Biosynth FM157340 Milbemectin A3 5mg $2475 2026-06-04 Buy
Cayman Chemical 18360 Milbemycin A3 ≥95% 5mg $977 2024-03-01 Buy
Cayman Chemical 18360 Milbemycin A3 ≥85% 5mg $1075 2026-04-30 Buy
Cayman Chemical 18360 Milbemycin A3 ≥95% 1mg $326 2024-03-01 Buy
Cayman Chemical 18360 Milbemycin A3 ≥85% 1mg $359 2026-04-30 Buy
ChemScene CS-0107719 Milbemycin A3 ≥98% 1mg $222 2026-06-04 Buy
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Properties

Melting point :212-215°; mp 192-194°
alpha :D20 +106° (c = 0.25 in acetone) (Aoki); D20 +106° (acetone) (Hirama)
Boiling point :725.5±60.0 °C(Predicted)
Density :1.21±0.1 g/cm3(Predicted)
storage temp. :0-6°C
solubility :DMF: Soluble; DMSO: Soluble; Ethanol: Soluble; Methanol: Soluble
form :A solid
pka :12.46±0.70(Predicted)
color :White to light yellow
Henry's Law Constant :6.5×102 mol/(m3Pa) at 25℃, Maniere et al. (2011)
InChIKey :ZLBGSRMUSVULIE-HIKHPYAJNA-N
EPA Substance Registry System :Milbemycin A3 (51596-10-2)

Safety Information

Symbol(GHS):
Signal word:
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
Precautionary statements:

Description

Milbemycin A3 is a member of a complex family of macrocyclic lactones that contain a characteristic spiroketal group produced from the fermentation of soil bacterium S. hygroscopicus subsp. aureolacrimosus. As a compound that potentiates glutamate and GABA-gated chloride-channel opening, milbemycin A3 is used as a nematocide and insecticide. The acaricidal and nematocidal activity of a mixture of milbemycin A3 and milbemycin A4 against adult spider mites, spider mite eggs, and C. elegans are reported at IC50 values of 5.3, 41.1, and 9.5 μg/ml.

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