Chemical substance record

Ivermectin

70288-86-7C₄₇H₇₁O₁₄R860.06 g/mol

Organic/Inorganic Small MoleculeChEBI source record

A mixture consisting of ≥ 90% 22,23-dihydroavermectin B1a (R = Me) and ≤ 10% 22,23-dihydroavermectin B1b (R = H). A semi-synthetic derivative of abamectin, it is used as a broad-spectrum antiparasite medication, particularly against worms (except tapeworms), although it is also effective against most mites and some lice. — ChEBI

Safety references

Safety documents & references

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Identity & molecular properties

Source-linked values

CAS number	70288-86-7	ChEBI ↗
Molecular formula	C₄₇H₇₁O₁₄R	ChEBI ↗
Molar mass	860.06 g/mol	ChEBI ↗
Monoisotopic mass	859.48438 Da	ChEBI ↗
Formal charge	0	ChEBI ↗
ChEBI identifier	CHEBI:6078	ChEBI ↗

Names & structural identifiers

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Source preferred name

ivermectin

SMILES

*C[C@H](C)[C@@]1([H])O[C@]2(CC[C@@H]1C)C[C@@H]1C[C@@]([H])(C/C=C(C)[C@@H](O[C@H]3C[C@H](OC)[C@@H](O[C@H]4C[C@H](OC)[C@@H](O)[C@H](C)O4)[C@H](C)O3)[C@@H](C)/C=C/C=C3CO[C@]4([H])[C@H](O)C(C)=C[C@@]([H])(C(=O)O1)[C@]34O)O2

Names & synonyms

IvermaxivermectineivermectinoivermectinumIvomecMectizanNoromectinPrivermectinSkliceStromectolVetrimecZimecterin

Names are supplied by ChEBI. Trade names and related synonyms may describe a broader product context.

Classification & relationships

ChEBI ontology

mixtureChEBI parent class · 60004 ↗

Roles recorded in ChEBI

antiviral agentinsecticideantimicrobial agentantiinfective agentanthelminthic drugantinematodal drugantineoplastic agentantiprotozoal drugantimalarialdermatologic drug

Database role annotations describe reported biological or chemical roles; they are not product approvals or recommendations for use.

Mass ↔ amount of substance

Calculated from sourced mass

Amount

Input unit

Equivalent amount

0.00116271 mol

Uses 860.06 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.

Research & patent references

Selected source associations

The delivery of ivermectin (Mectizan). ↗Tropical medicine & international health : TM & IH · 2004 Apr · PMID 15078277

The Mectizan Donation Program (MDP). ↗Annals of tropical medicine and parasitology · 2008 Sep · PMID 18718154

US4199569 · Patent reference ↗Patent cross-reference supplied by ChEBI. Association alone does not establish claim scope.

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Sources & record history

Checked 27 Sep 2026

Identity, formula, mass, synonyms & ontologyEMBL-EBI ChEBI · CHEBI:6078

Release 255, 9 September 2026. ChEBI three-star (manually annotated) source entry. View original record ↗ · CC BY 4.0

PubCAS formats source data, connects references and computes explicitly labelled conversions. CAS cross-references are supplied by ChEBI; they do not constitute CAS verification or endorsement.

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