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CAS 81818-54-4

CAS 81818-54-4 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 81818-54-4
CAS 81818-54-4PubChem CID 4812

2-Methyl-3-(3,7,11,15-tetramethyl-2-hexadecen-1-yl)-1,4-naphthoquinone

IUPAC name
2-methyl-3-(3,7,11,15-tetramethylhexadec-2-enyl)naphthalene-1,4-dione
Molecular formula
C31H46O2
Molecular weight
450.7 g/mol
Exact mass
450.349780706 Da
XLogP3
10.9
Topological polar surface area
34.1 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

RefChem:2632272-methyl-3-(3,7,11,15-tetramethylhexadec-2-en-1-yl)naphthalene-1,4-dioneEINECS 279-833-9Vitamin K1-d7ProkayvitoralPhytomenadione)C31H46O22-Methyl-3-(3,7,11,15-tetramethylhexadec-2-enyl)-1,4-naphthoquinone
13 more reported names
Vitamin K1 (Phytonadione Impurity 32Vitamin K1 Impurity 66Dry Vitamin K1 5% SDphylloquinone;2-METHYL-3-PHYTYL-1,4-NAPHTHOQUINONEMBWXNTAXLNYFJB-UHFFFAOYSA-NHMS3259K20HMS3372D04s4698Phytomenadione/Vitamin K1 Impurity 95Vitamin K1 (Phylloquinone) (E-Isomer)DB-0568231,4-Naphthalenedione, 2-methyl-3-(3,7,11,15-tetramethyl-2-hexadecen-1-yl)-
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 81818-54-4

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No records found for this CAS number.

How CAS 81818-54-4 is used on this site

CAS 81818-54-4 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 81818-54-4 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.