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CAS 65195-55-3

CAS 65195-55-3 matches 1 EU annex record across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 65195-55-3
CAS 65195-55-3PubChem CID 6434889

avermectin B1a

IUPAC name
(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)-5-[(2S,4S,5S,6S)-5-hydroxy-4-methoxy-6-methyloxan-2-yl]oxy-4-methoxy-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
Molecular formula
C48H72O14
Molecular weight
873.1 g/mol
Exact mass
872.49220697 Da
XLogP3
3.8
Topological polar surface area
170.0 Ų
Hydrogen-bond donors
3
Hydrogen-bond acceptors
14
Covalent units
1
Defined stereocentres
20

Also known as

Abamectin B1aabamectin component B1a5-O-Demethylavermectin A1aAvermectin B(1)aAvermectin A1a, 5-O-demethyl-Antibiotic C 076B1aCaswell No. 063ABAbamectin komponente B1a
16 more reported names
K54ZMM929KCHEBI:29534RefChem:6604C-076avermectin B1a (purity >=80 %)265-610-3Ivermectin EP Impurity AC48H72O14DSSTox_CID_3892DSSTox_RID_77221DSSTox_GSID_23892Abamectine [French]Abamectinum [Latin]Abamectina [Spanish]EINECS 265-610-3Antibiotic C 076A1a, 5-O-demethyl-
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 65195-55-3

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No records found for this CAS number.

How CAS 65195-55-3 is used on this site

CAS 65195-55-3 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 1 EU annex record shares this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 65195-55-3 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.