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CAS 112-42-5

CAS 112-42-5 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 112-42-5
CAS 112-42-5PubChem CID 8184

1-Undecanol

Undecan-1-ol is a primary alcohol that is undecane substituted by a hydroxy group at position 1. It has a role as a flavouring agent and a plant metabolite. It is a primary alcohol and an undecanol. — ChEBI

IUPAC name
undecan-1-ol
Molecular formula
C11H24O
Molecular weight
172.31 g/mol
Exact mass
172.182715385 Da
XLogP3
4.6
Topological polar surface area
20.2 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
1
Covalent units
1
Defined stereocentres
0

Also known as

Undecyl alcoholUndecanol1-HendecanolHendecyl alcoholTip-Nip1-Undecyl alcoholDecyl carbinoln-Undecan-1-ol
16 more reported names
Alcohol C-11C11 alcoholNeodol 1Alcohol, undecylUndecanol-(1)Alcohol C11NSC 403667HSDB 1089EINECS 203-970-5UNII-06MJ0P28T3BRN 1698334AI3-00330NSC-4036671-UNDECANOL [HSDB]UNDECYL ALCOHOL [FCC]UNDECYL ALCOHOL [FHFI]
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match8184

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

  • First Aid: Wash eyes with water for at least 15 min. (USCG, 1999) Source: CAMEO Chemicals
  • Note: This chemical does not meet GHS hazard criteria for 0.2% (3 of 1933) of reports. Source: European Chemicals Agency (ECHA)
  • Signal: Warning Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H315 (18.6%): Causes skin irritation [Warning Skin corrosion/irritation]; H319 (95.2%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]; H400 (81.7%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]; H411 (22.6%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard] Source: European Chemicals Agency (ECHA)
  • Precautionary Statement Codes: P264, P264+P265, P273, P280, P302+P352, P305+P351+P338, P321, P332+P317, P337+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 1933 reports by companies from 17 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Reported as not meeting GHS hazard criteria per 3 of 1933 reports by companies.; There are 16 notifications provided by 1930 of 1933 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)
  • Note: This chemical does not meet GHS hazard criteria for 100% (89 of 89) of all reports. Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: Not Classified; Reported as not meeting GHS hazard criteria by 89 of 89 companies. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
  • ECHA C&L Notifications Summary: Aggregated GHS information provided per 89 reports by companies from 1 notifications to the ECHA C&L Inventory.; Reported as not meeting GHS hazard criteria per 89 of 89 reports by companies.; There are 0 notifications provided by 0 of 89 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)
  • Signal: Warning Source: NITE-CMC
  • GHS Hazard Statements: H315: Causes skin irritation [Warning Skin corrosion/irritation]; H320: Causes eye irritation [Warning Serious eye damage/eye irritation]; H401: Toxic to aquatic life [Hazardous to the aquatic environment, acute hazard]; H411: Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard] Source: NITE-CMC
  • Precautionary Statement Codes: P264, P264+P265, P273, P280, P302+P352, P305+P351+P338, P321, P332+P317, P337+P317, P362+P364, P391, and P501 (click each P-code to see the statement) Source: NITE-CMC
  • Environmental Bioconcentration: An estimated BCF of 86 was calculated for 1-undecanol(SRC), using a log Kow of 4.72(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is moderate(SRC), provided the compound is not metabolized by the organism(SRC). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: TERRESTRIAL FATE: Based on a classification scheme(1), an estimated Koc value of 8,800(SRC), determined from a log Kow of 4.72(2) and a regression-derived equation(3), indicates that 1-undecanol is expected to be immobile in soil(SRC). Volatilization of 1-undecanol from moist soil surfaces is expected to be an important fate process(SRC) given an estimated Henry's Law constant of 7.3X10-5 atm-cu m/mole(SRC), using a fragment constant estimation method(4). However, adsorption to soil is expected to attenuate volatilization(SRC). 1-Undecanol is not expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 2.97X10-3 mm Hg(5). The theoretical BOD for 1-undecanol was 27.6% after 5-day incubation in sewage(6), indicating that biodegradation may be an important environmental fate process in soil(SRC). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: AQUATIC FATE: Based on a classification scheme(1), an estimated Koc value of 8,800(SRC), determined from a log Kow of 4.72(2) and a regression-derived equation(3), indicates that 1-undecanol is expected to adsorb to suspended solids and sediment(SRC). Volatilization from water surfaces is expected(3) based upon an estimated Henry's Law constant of 7.3X10-5 atm-cu m/mole(SRC), developed using a fragment constant estimation method(4). Using this Henry's Law constant and an estimation method(3), volatilization half-lives for a model river and model lake are 20 hours and 10 days, respectively(SRC). However, volatilization from water surfaces is expected to be attenuated by adsorption to suspended solids and sediment in the water column. The estimated volatilization half-life from a model pond is 9 months if adsorption is considered(5). According to a classification scheme(6), an estimated BCF of 86(SRC), from its log Kow(2) and a regression-derived equation(7), suggests the potential for bioconcentration in aquatic organisms is moderate(SRC). The theoretical BOD for 1-undecanol was 27.6% after 5-day incubation in sewage(8), indicating that biodegradation may be an important environment Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), 1-undecanol, which has a vapor pressure of 2.97X10-3 mm Hg at 25 °C(2), is expected to exist solely as a vapor in the ambient atmosphere. Vapor-phase 1-undecanol is degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals(SRC); the half-life for this reaction in air is estimated to be 23 hours(SRC), calculated from its rate constant of 1.7X10-11 cu cm/molecule-sec at 25 °C(SRC) that was derived using a structure estimation method(3). Source: Hazardous Substances Data Bank (HSDB)

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
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 112-42-5

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How CAS 112-42-5 is used on this site

CAS 112-42-5 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 112-42-5 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.