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CAS 1 record

CAS 101-86-0

CAS 101-86-0 matches 1 EU annex record across Annex II–VI of Regulation 1223/2009.

Chemical identity and properties

PubChem 2D chemical structure for CAS 101-86-0
CAS 101-86-0PubChem CID 1550884

alpha-Hexylcinnamaldehyde

Alpha-hexylcinnamaldehyde is a member of the class of cinnamaldehydes carrying a hexyl substituent at the alpha-position. It is functionally related to an (E)-cinnamaldehyde. ChEBI

IUPAC name
(2E)-2-benzylideneoctanal
Molecular formula
C15H20O
Molecular weight
216.32 g/mol
Exact mass
216.151415257 Da
XLogP3
4.8
Topological polar surface area
17.1 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
1
Covalent units
1
Defined stereocentres
0

Also known as

2-Benzylideneoctanalalpha-Hexylcinnamic aldehydealpha-Hexylcinnamyl aldehydealpha-Hexyl-beta-phenylacroleinCHEBI:55365alpha-n-Hexyl-beta-phenylacroleinOctanal, 2-(phenylmethylene)-NSC-406799
16 more reported names
FEMA No. 2569CINNAMALDEHYDE, alpha-HEXYL-hexyl cinnamaldehyde7X6O37OK2IRefChem:555734202-983-3HexylcinnamaldehydeHexylcinnamal(E)-2-benzylideneoctanal(2E)-2-(phenylmethylidene)octanal2-(Phenylmethylene)octanal2-Hexenyl cynnamaldehyde2-Hexyl-3-phenyl-2-propenalE9947QRR9O.alpha.-HexylcinnamaldehydeWLN: VHY6 & U1R
External database identifiers

Evidence from additional scientific databases

EMBL-EBI ChEBI
Exact identifier matchCHEBI:55365

α-hexylcinnamaldehyde

A member of the class of cinnamaldehydes carrying a hexyl substituent at the α-position.

Formula
C15H20O
Average mass
216.324 g/mol
Monoisotopic mass
216.15142 Da
Formal charge
0
  • cinnamaldehydes — is a (CHEBI:23245)
  • (E)-cinnamaldehyde — has functional parent (CHEBI:16731)
  • cinnamaldehydes — is a (CHEBI:23245)
Additional curated names
(2E)-2-benzylideneoctanal2-Benzylideneoctanal2-Hexyl-3-phenyl-2-propenal2-Hexylcinnamaldehyde2-[(E)-benzylidene]octanal2-(Phenylmethylene)octanalalpha-Hexyl-beta-phenylacroleinalpha-Hexylcinnamaldehydealpha-Hexylcinnamic aldehydealpha-Hexylcinnamyl aldehydealpha-n-Hexyl-beta-phenylacroleinHexyl cinnamic aldehydealpha-hexylcinnamic aldehyde
Cross-references from this source

Mapped by: Exact CAS cross-reference in the ChEBI compound record. Source updated: 2015-10-23. Retrieved: 2026-08-31. Open source record

NIH PubChem PUG-View
Exact identifier match1550884

Attributed physical-property, hazard, environmental and use annotations.

  • Note: This chemical does not meet GHS hazard criteria for < 0.1% (2 of 2496) of reports. Source: European Chemicals Agency (ECHA)
  • Signal: Warning Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H317 (99.6%): May cause an allergic skin reaction [Warning Sensitization, Skin]; H400 (65.1%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]; H411 (62.4%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard] Source: European Chemicals Agency (ECHA)
  • Precautionary Statement Codes: P261, P272, P273, P280, P302+P352, P321, P333+P317, P362+P364, P391, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
  • ECHA C&L Notifications Summary: Aggregated GHS information provided per 2496 reports by companies from 37 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Reported as not meeting GHS hazard criteria per 2 of 2496 reports by companies.; There are 36 notifications provided by 2494 of 2496 reports by companies with hazard statement code(s).; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H317 (100%): May cause an allergic skin reaction [Warning Sensitization, Skin]; H400 (100%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]; H411 (99.4%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard] Source: European Chemicals Agency (ECHA)
  • ECHA C&L Notifications Summary: Aggregated GHS information provided per 168 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
  • Signal: Warning Source: NITE-CMC
  • GHS Hazard Statements: H315: Causes skin irritation [Warning Skin corrosion/irritation]; H317: May cause an allergic skin reaction [Warning Sensitization, Skin] Source: NITE-CMC
  • Precautionary Statement Codes: P261, P264, P272, P280, P302+P352, P321, P332+P317, P333+P317, P362+P364, and P501 (click each P-code to see the statement) Source: NITE-CMC
  • Signal: Warning Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
  • GHS Hazard Statements: H315: Causes skin irritation [Warning Skin corrosion/irritation]; H317: May cause an allergic skin reaction [Warning Sensitization, Skin] Source: Hazardous Chemical Information System (HCIS), Safe Work Australia

Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record

Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.

Additional source coverage and match status
SourceResultChecked
EMBL-EBI ChEBIExact match2026-08-31
NIH PubChem PUG-ViewExact match2026-08-31

A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.

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 101-86-0

1 total
Annex
III
Entry
87

HEXYL CINNAMAL

2-Benzylideneoctanal

The presence of the substance must be indicated in the list of ingredients referred to in Article 19(1)g when its concentration exceeds: - 0.001% in leave-on products - 0.01% in rinse-off products

How CAS 101-86-0 is used on this site

CAS 101-86-0 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.

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