CosIng Checker
CosIng Checker
EU cosmetic ingredients, restrictions and safety
Login
CAS 0 records

CAS 55-18-5

CAS 55-18-5 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

Check this CAS numberBrowse annexes

Chemical identity and properties

PubChem 2D chemical structure for CAS 55-18-5
CAS 55-18-5PubChem CID 5921

N-Nitrosodiethylamine

IUPAC name
N,N-diethylnitrous amide
Molecular formula
C4H10N2O
Molecular weight
102.14 g/mol
Exact mass
102.079312947 Da
XLogP3
0.5
Topological polar surface area
32.7 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
3
Covalent units
1
Defined stereocentres
0

Also known as

DiethylnitrosamineNDEADiethylnitrosoamineN-Ethyl-N-nitrosoethanamineN,N-DiethylnitrosoamineNitrosodiethylamineN,N-DiethylnitrosamineDiethylnitrosamide
16 more reported names
DENAEthanamine, N-ethyl-N-nitroso-Diethylamine, N-nitroso-N-Nitroso-N,N-diethylamineDiaethylnitrosaminDEN (mutagen)N-Nitroso-diaethylamineN-Ethyl-N-nitroso-ethanamine3IQ78TTX1ANSC-132NSC132CHEBI:34873nitrous diethylamideN NitrosodiethylamineRefChem:388928200-226-1
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 55-18-5

0 total
No records found for this CAS number.

How CAS 55-18-5 is used on this site

CAS 55-18-5 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share 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 55-18-5 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.