WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 319514

CAS#: 113507-06-5

Description: Moxidectin is an anthelmintic drug which kills parasitic worms (helminths), and is used for the prevention and control of heartworm and intestinal worms. Moxidectin is a semisynthetic derivative of nemadectin which is produced by fermentation by Streptomyces cyano-griseus. This Streptomyces species was discovered in a soil sample from Australia in the late 1980s collected by an agronomist working for the American Cyanamid company.

Chemical Structure

CAS# 113507-06-5

Theoretical Analysis

MedKoo Cat#: 319514
Name: Moxidectin
CAS#: 113507-06-5
Chemical Formula: C37H53NO8
Exact Mass: 639.37712
Molecular Weight: 639.83
Elemental Analysis: C, 69.46; H, 8.35; N, 2.19; O, 20.00

Price and Availability

Size Price Availability Quantity
100.0mg USD 150.0 Same Day
1.0g USD 250.0 Same Day
2.0g USD 450.0 Same Day
5.0g USD 850.0 Same Day
10.0g USD 1250.0 2 Weeks
20.0g USD 2250.0 2 Weeks
50.0g USD 4250.0 2 Weeks
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Synonym: CL301423; CL-301423; CL 301423; 23-Methoxime-LL-F 28249α; Cydectin; Equest; ProHeart 6; Quest; Quest (parasiticide); Vetdectin Oral Drench; Moxidectin;

IUPAC/Chemical Name: Milbemycin B, 5-O-demethyl-28-deoxy-25-(1,3-dimethyl-1-butenyl)-6,28-epoxy-23-(methoxyimino)-, (6R,23E,25S(E))-


InChi Code: InChI=1S/C37H53NO8/c1-21(2)14-25(6)33-26(7)31(38-42-8)19-36(46-33)18-29-17-28(45-36)13-12-23(4)15-22(3)10-9-11-27-20-43-34-32(39)24(5)16-30(35(40)44-29)37(27,34)41/h9-12,14,16,21-22,26,28-30,32-34,39,41H,13,15,17-20H2,1-8H3/b10-9+,23-12+,25-14+,27-11+,38-31+/t22-,26-,28+,29-,30-,32+,33+,34+,36-,37+/m0/s1

SMILES Code: C[C@@H]\1C/C(=C/C[C@@H]2C[C@@H](C[C@@]3(O2)C/C(=N\OC)/[C@@H]([C@H](O3)/C(=C/C(C)C)/C)C)OC(=O)[C@@H]4C=C([C@H]([C@@H]5[C@]4(/C(=C/C=C1)/CO5)O)O)C)/C

Appearance: White to off-white solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO, not in water

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
Soluble in DMSO 20.0 31.3

Preparing Stock Solutions

The following data is based on the product molecular weight 639.83 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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1: Diakou A, Morelli S, Dimzas D, Di Cesare A, Capelli G, Parrinello C, Pollmeier M, Schaper R, Traversa D. Efficacy of a moxidectin/imidacloprid spot-on formulation (Advocate(®)) for the treatment of Troglostrongylus brevior in naturally infected cats in a field study in Greece. Parasit Vectors. 2019 Nov 4;12(1):519. doi: 10.1186/s13071-019-3760-9. PubMed PMID: 31685011; PubMed Central PMCID: PMC6829829.

2: Hussar DA, Chahine EB. Omadacycline tosylate, Sarecycline hydrochloride, Rifamycin sodium, and Moxidectin. J Am Pharm Assoc (2003). 2019 Sep - Oct;59(5):756-760. doi: 10.1016/j.japh.2019.07.016. PubMed PMID: 31522740.

3: Getachew B, Tizabi Y. Antidepressant effects of moxidectin, an antiparasitic drug, in a rat model of depression. Behav Brain Res. 2019 Dec 30;376:112220. doi: 10.1016/j.bbr.2019.112220. Epub 2019 Sep 9. PubMed PMID: 31513828; PubMed Central PMCID: PMC6783392.

4: Kryda K, Six RH, Walsh KF, Holzmer SJ, Chapin S, Mahabir SP, Myers M, Inskeep T, Rugg J, Cundiff B, Pullins A, Ulrich M, McCall JW, McTier TL, Maeder SJ. Laboratory and field studies to investigate the efficacy of a novel, orally administered combination product containing moxidectin, sarolaner and pyrantel for the prevention of heartworm disease (Dirofilaria immitis) in dogs. Parasit Vectors. 2019 Sep 11;12(1):445. doi: 10.1186/s13071-019-3702-6. PubMed PMID: 31506094; PubMed Central PMCID: PMC6737634.

5: McTier TL, Six RH, Pullins A, Chapin S, Kryda K, Mahabir SP, Woods DJ, Maeder SJ. Preventive efficacy of oral moxidectin at various doses and dosage regimens against macrocyclic lactone-resistant heartworm (Dirofilaria immitis) strains in dogs. Parasit Vectors. 2019 Sep 11;12(1):444. doi: 10.1186/s13071-019-3685-3. PubMed PMID: 31506088; PubMed Central PMCID: PMC6737633.

6: Krautmann MJ, Mahabir S, Fielder A, Collard W, Wolthuis TL, Esch K, Morton T, Alleman K, Luo L, McCandless E, Nederveld S, Kryda K, Carroll R, Boucher JF. Safety of an extended-release injectable moxidectin suspension formulation (ProHeart(®) 12) in dogs. Parasit Vectors. 2019 Sep 6;12(1):433. doi: 10.1186/s13071-019-3690-6. PubMed PMID: 31492168; PubMed Central PMCID: PMC6728954.

7: Genchi M, Vismarra A, Lucchetti C, Viglietti A, Crosara S, Gnudi G, Quintavalla C, Schaper R, Kramer L. Efficacy of imidacloprid 10%/moxidectin 2.5% spot on (Advocate®, Advantage Multi®) and doxycycline for the treatment of natural Dirofilaria immitis infections in dogs. Vet Parasitol. 2019 Sep;273:11-16. doi: 10.1016/j.vetpar.2019.07.011. Epub 2019 Jul 27. PubMed PMID: 31442887.

8: de Oliveira Ferreira F, Porto RS, Rath S. Aerobic dissipation of avermectins and moxidectin in subtropical soils and dissipation of abamectin in a field study. Ecotoxicol Environ Saf. 2019 Nov 15;183:109489. doi: 10.1016/j.ecoenv.2019.109489. Epub 2019 Aug 5. PubMed PMID: 31394379.

9: McTier TL, Kryda K, Wachowski M, Mahabir S, Ramsey D, Rugg D, Mazaleski M, Therrien C, Adams E, Wolff T, Bowman DD. ProHeart® 12, a moxidectin extended-release injectable formulation for prevention of heartworm (Dirofilaria immitis) disease in dogs in the USA for 12 months. Parasit Vectors. 2019 Jul 26;12(1):369. doi: 10.1186/s13071-019-3632-3. PubMed PMID: 31349867; PubMed Central PMCID: PMC6660952.

10: Getachew B, Reyes RE, Davies DL, Tizabi Y. Moxidectin Effects on Gut Microbiota of Wistar-Kyoto Rats: Relevance to Depressive-Like Behavior. Clin Pharmacol Transl Med. 2019;3(1):134-142. Epub 2019 May 5. PubMed PMID: 31321385; PubMed Central PMCID: PMC6639013.

11: Prichard RK, Geary TG. Perspectives on the utility of moxidectin for the control of parasitic nematodes in the face of developing anthelmintic resistance. Int J Parasitol Drugs Drug Resist. 2019 Aug;10:69-83. doi: 10.1016/j.ijpddr.2019.06.002. Epub 2019 Jun 15. Review. PubMed PMID: 31229910; PubMed Central PMCID: PMC6593148.

12: Fisara P, Guerino F, Sun F. Efficacy of a spot-on combination of fluralaner plus moxidectin (Bravecto(®) Plus) in cats following repeated experimental challenge with a field isolate of Ctenocephalides felis. Parasit Vectors. 2019 May 23;12(1):259. doi: 10.1186/s13071-019-3512-x. PubMed PMID: 31122282; PubMed Central PMCID: PMC6533700.

13: Verdú JR, Cortez V, Martinez-Pinna J, Ortiz AJ, Lumaret JP, Lobo JM, Sánchez-Piñero F, Numa C. Author Correction: First assessment of the comparative toxicity of ivermectin and moxidectin in adult dung beetles: Sub-lethal symptoms and pre-lethal consequences. Sci Rep. 2019 May 21;9(1):7845. doi: 10.1038/s41598-019-43806-2. PubMed PMID: 31110196; PubMed Central PMCID: PMC6527691.

14: Keller L, Palmeirim MS, Ame SM, Ali SM, Puchkov M, Huwyler J, Hattendorf J, Keiser J. Efficacy and safety of ascending dosages of moxidectin and moxidectin-albendazole against Trichuristrichiura in adolescents: a randomized controlled trial. Clin Infect Dis. 2019 May 2. pii: ciz326. doi: 10.1093/cid/ciz326. [Epub ahead of print] PubMed PMID: 31044235.

15: Fazzio L, Moreno L, Galvan W, Canton C, Alvarez L, Streitenberger N, Sánchez R, Lanusse C, Sanabria R. Pharmacokinetic profile and anthelmintic efficacy of moxidectin administered by different doses and routes to feedlot calves. Vet Parasitol. 2019 Feb;266:73-79. doi: 10.1016/j.vetpar.2018.12.016. Epub 2019 Jan 11. PubMed PMID: 30736951.

16: Fourie JJ, Meyer L, Thomas E. Efficacy of topically administered fluralaner or imidacloprid/moxidectin on dogs with generalised demodicosis. Parasit Vectors. 2019 Jan 25;12(1):59. doi: 10.1186/s13071-018-3230-9. PubMed PMID: 30683143; PubMed Central PMCID: PMC6346496.

17: Otranto D, Solari Basano F, Pombi M, Capelli G, Nazzari R, Falsone L, Petry G, Pollmeier MG, Lia RP. Effectiveness of the spot-on combination of moxidectin and imidacloprid (Advocate®) in the treatment of ocular thelaziosis by Thelazia callipaeda in naturally infected cats. Parasit Vectors. 2019 Jan 11;12(1):25. doi: 10.1186/s13071-018-3262-1. PubMed PMID: 30635002; PubMed Central PMCID: PMC6329153.

18: Rohdich N, Zschiesche E, Wolf O, Loehlein W, Pobel T, Gil MJ, Roepke RKA. Field effectiveness and safety of fluralaner plus moxidectin (Bravecto® Plus) against ticks and fleas: a European randomized, blinded, multicenter field study in naturally-infested client-owned cats. Parasit Vectors. 2018 Nov 19;11(1):598. doi: 10.1186/s13071-018-3175-z. PubMed PMID: 30454052; PubMed Central PMCID: PMC6240940.

19: Walther FM, Fisara P, Roepke RKA. Safety of topical administration of fluralaner plus moxidectin concurrently with praziquantel in cats. Parasit Vectors. 2018 Nov 19;11(1):597. doi: 10.1186/s13071-018-3170-4. PubMed PMID: 30454033; PubMed Central PMCID: PMC6240955.

20: Rohdich N, Zschiesche E, Wolf O, Loehlein W, Kirkova Z, Iliev P, Rapti D, Postoli R, Capári B, Farkas R, Roepke RKA. A randomized, blinded, controlled, multi-centered field study assessing the treatment of gastrointestinal nematode infections in cats with fluralaner plus moxidectin spot-on solution (Bravecto® Plus). Parasit Vectors. 2018 Nov 19;11(1):589. doi: 10.1186/s13071-018-3169-x. PubMed PMID: 30449275; PubMed Central PMCID: PMC6240952.


100.0mg / USD 150.0