Selamectin - ≥97% , CAS No.220119-17-5

CAS: 220119-17-5 Cat. No.: S134359 Molecular Weight: 769.96 EC Number: 815-979-7 PubChem CID: 9578507

GRADE & PURITY ≥97%

Synonyms

CAS-165108-07-6 | Selamectin (USAN/INN) | STRONGHOLD PLUS COMPONENT SELAMECTIN | (1R,4S,5'S,6R,6'S,8R,10E,12S,13S,14E,16E,20R,21Z,24S)-6'-cyclohexyl-24-hydroxy-21-hydroxyimino-12-[(2R,4S,5S,6S)-5-hydroxy-4-methoxy-6-methyloxan-2-yl]oxy-5',11,13,22-tetrame

Storage

Store at -20°C

Shipped In

Ice chest + Ice pads

Specifications

Synonyms

CAS-165108-07-6 | Selamectin (USAN/INN) | STRONGHOLD PLUS COMPONENT SELAMECTIN | (1R, 4S, 5'S, 6R, 6'S, 8R, 10E, 12S, 13S, 14E, 16E, 20R, 21Z, 24S)-6'-cyclohexyl-24-hydroxy-21-hydroxyimino-12-[(2R, 4S, 5S, 6S)-5-hydroxy-4-methoxy-6-methyloxan-2-yl]oxy-5', 11, 13, 22-tetrame

Specifications & Purity

≥97%

Biochemical and Physiological Mechanisms

Selamectin is a veterinary parasiticide and anthelminthic. Its mechanism of action is by activating glutamate-gated chloride channels at muscle synapses.

Storage

Store at -20°C

Shipped In

Ice chest + Ice pads

This product requires cold chain shipping. Ground and other economy services are not available.

Purity

≥97%

Names and Identifiers

• Canonical Smiles: CC1CCC2(CC3CC(O2)CC=C(C(C(C=CC=C4COC5C4(C(C=C(C5=NO)C)C(=O)O3)O)C)OC6CC(C(C(O6)C)O)OC)C)OC1C7CCCCC7
• IUPAC Name: (1R,4S,5'S,6R,6'S,8R,10E,12S,13S,14E,16E,20R,21Z,24S)-6'-cyclohexyl-24-hydroxy-21-hydroxyimino-12-[(2R,4S,5S,6S)-5-hydroxy-4-methoxy-6-methyloxan-2-yl]oxy-5',11,13,22-tetramethylspiro[3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16,22-tetraene-6,2'-oxane]-2-one
• InChIKey: AFJYYKSVHJGXSN-XHKIUTQPSA-N
• INCHI: 1S/C43H63NO11/c1-24-11-10-14-30-23-50-40-36(44-48)27(4)19-33(43(30,40)47)41(46)52-32-20-31(16-15-25(2)38(24)53-35-21-34(49-6)37(45)28(5)51-35)54-42(22-32)18-17-26(3)39(55-42)29-12-8-7-9-13-29/h10-11,14-15,19,24,26,28-29,31-35,37-40,45,47-48H,7-9,12-13,16-18,20-23H2,1-6H3/b11-10+,25-15+,30-14+,44-36-/t24-,26-,28-,31+,32-,33-,34-,35-,37-,38-,39-,40+,42+,43+/m0/s1
• Isomeric SMILES: C[C@H]1CC[C@]2(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(/C5=N/O)C)C(=O)O3)O)C)O[C@H]6C[C@@H]([C@H]([C@@H](O6)C)O)OC)\C)O[C@@H]1C7CCCCC7
• PubChem CID: 9578507
• Molecular Weight: 769.96

Taxonomic Classification

Taxonomy Tree

• Kingdom Organic compounds
  • Superclass Phenylpropanoids and polyketides
    • Class Macrolides and analogues
      • Subclass Milbemycins

• Kingdom: Organic compounds
• Superclass: Phenylpropanoids and polyketides
• Class: Macrolides and analogues
• Subclass: Milbemycins
• Intermediate Tree Nodes: Not available
• Direct Parent: Milbemycins
• Alternative Parents: O-glycosyl compounds Ketals Monosaccharides Oxanes Tertiary alcohols Ketoximes Tetrahydrofurans Lactones Carboxylic acid esters Secondary alcohols Oxacyclic compounds Monocarboxylic acids and derivatives Dialkyl ethers Organopnictogen compounds Organic oxides Carbonyl compounds Hydrocarbon derivatives
• Molecular Framework: Aliphatic heteropolycyclic compounds
• Substituents: Milbemycin - Glycosyl compound - O-glycosyl compound - Ketal - Monosaccharide - Oxane - Tetrahydrofuran - Tertiary alcohol - Ketoxime - Carboxylic acid ester - Lactone - Secondary alcohol - Acetal - Carboxylic acid derivative - Dialkyl ether - Ether - Monocarboxylic acid or derivatives - Oxacycle - Organoheterocyclic compound - Oxime - Organopnictogen compound - Organic oxygen compound - Organic oxide - Alcohol - Hydrocarbon derivative - Organic nitrogen compound - Organonitrogen compound - Organooxygen compound - Carbonyl group - Aliphatic heteropolycyclic compound
• Description: This compound belongs to the class of organic compounds known as milbemycins. These are a group of macrolides with a structure containing a 16-membered lactone ring fused to a 1,7-dioxaspiroundecane ring system and to either a benzofuran (or hydrogenated derivative thereof). In some cases (e.g. Milbemycin E), the tetrahydrofuranyl ring is missing. Milbemycins can be o-glycosylated at C13 to form Avermectins. Milbemycins are produced by Streptomyces species.
• External Descriptors: Not available

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Associated Targets(Human)

SLCO1B1 Tchem Solute carrier organic anion transporter family member 1B1 (2672 Activities)

Discover Target: SLCO1B1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

SLCO1B3 Tchem Solute carrier organic anion transporter family member 1B3 (2517 Activities)

Discover Target: SLCO1B3

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Associated Targets(non-human)

Hdac6 Histone deacetylase 6 (222 Activities)

Discover Target: Hdac6

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Canis familiaris (36305 Activities)

Explore this target

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Dengue virus type 2 NS3 protein (2214 Activities)

Explore this target

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

rep Replicase polyprotein 1ab (378 Activities)

Discover Target: rep

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Mechanisms of Action

Chemical and Physical Properties

• Solubility: DMSO: 2 mg/mL, clear
• Molecular Weight: 770.000 g/mol
• XLogP3: 5.400
• Hydrogen Bond Donor Count: 3
• Hydrogen Bond Acceptor Count: 12
• Rotatable Bond Count: 4
• Exact Mass: 769.44 Da
• Monoisotopic Mass: 769.44 Da
• Topological Polar Surface Area: 155.000 Ų
• Heavy Atom Count: 55
• Formal Charge: 0
• Complexity: 1550.000
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 14
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 4
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 4
• Covalently-Bonded Unit Count: 1

References

1. Jiawen Ji, Siyue Zhu, Xinping Hu, Jianhui Zhu, Sen Pang, Yongqiang Ma, Xuefeng Li.  (2025)  Enhanced residual risk of abamectin induced by 6PPD: in water, soil, and vegetables.  Environmental Science-Processes & Impacts,      [PMID:40099488] [10.1039/D5EM00053J]

2. Hongmei Wang, Bo Lei, Xinyu Bao, Xiaobin Gu, Jing Xia, Yong Huang, Huaqiao Tang, Fei Shi, Xing Huang, Bo liang, Jing Xu.  (2026)  Functional characterization of two delta-class glutathione S-transferases genes in detoxifying acaricides in Sarcoptes scabiei.  PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY,      [PMID:] [10.1016/j.pestbp.2026.106981]