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CAS 91-51-0

CAS 91-51-0 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

Chemical identity and properties

PubChem 2D chemical structure for CAS 91-51-0
CAS 91-51-0PubChem CID 121232773

Methyl 2-((3-(4-(1,1-dimethylethyl)phenyl)-2-methylpropylidene)amino)benzoate

IUPAC name
methyl 2-[1-(4-tert-butylphenyl)propan-2-yldiazenyl]benzoate
Molecular formula
C21H26N2O2
Molecular weight
338.4 g/mol
Exact mass
338.199428076 Da
XLogP3
5.9
Topological polar surface area
51.0 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
4
Covalent units
1
Defined stereocentres
0

Also known as

Methyl 2-[[3-[4-(1,1-dimethylethyl)phenyl]-2-methylpropylidene]amino]benzoateRefChem:201683HCYRUADDKFDUII-UHFFFAOYSA-NMethyl 2-{[1-(4-tert-butylphenyl)propan-2-yl]diazenyl}benzoate
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 91-51-0

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How CAS 91-51-0 is used on this site

CAS 91-51-0 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 91-51-0 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.