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CAS 112-05-0

CAS 112-05-0 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 112-05-0
CAS 112-05-0PubChem CID 8158

Nonanoic Acid

Nonanoic acid is a C9 straight-chain saturated fatty acid which occurs naturally as esters of the oil of pelargonium. Has antifungal properties, and is also used as a herbicide as well as in the preparation of plasticisers and lacquers. It has a role as an antifeedant, a plant metabolite, a Daphnia magna metabolite and an algal metabolite. It is a straight-chain saturated fatty acid and a medium-chain fatty acid. It is a conjugate acid of a nonanoate. It derives from a hydride of a nonane. — ChEBI

IUPAC name
nonanoic acid
Molecular formula
C9H18O2
Molecular weight
158.24 g/mol
Exact mass
158.130679813 Da
XLogP3
3.5
Topological polar surface area
37.3 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

Pelargonic acidn-Nonanoic acidNonoic acidNonylic acidPelargic acid1-Octanecarboxylic acidn-Nonylic acidn-Nonoic acid
16 more reported names
PelargonHexacid C-9Cirrasol 185AEmfac 12021-Octanecarboxyic acidFEMA No. 2784CHEBI:2901997SEH7577TNSC-62787NSC-65450NSC-65455RefChem:166452203-931-2pergonic acid1-nonanoic acidNonansaeure
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match8158

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

  • Signal: Warning Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
  • GHS Hazard Statements: H315: Causes skin irritation [Warning Skin corrosion/irritation]; H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]; H412: Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard] Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
  • Precautionary Statement Codes: P264, P264+P265, P273, P280, P302+P352, P305+P351+P338, P321, P332+P317, P337+P317, P362+P364, and P501 (click each P-code to see the statement) Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
  • Signal: Danger Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H314 (87.4%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]; H315 (12.6%): Causes skin irritation [Warning Skin corrosion/irritation]; H318 (19.1%): Causes serious eye damage [Danger Serious eye damage/eye irritation]; H319 (12.6%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]; H412 (30.1%): Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard] Source: European Chemicals Agency (ECHA)
  • Precautionary Statement Codes: P260, P264, P264+P265, P273, P280, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P351+P338, P305+P354+P338, P316, P317, P321, P332+P317, P337+P317, P362+P364, P363, P405, 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 2504 reports by companies from 13 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]; H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]; H336: May cause drowsiness or dizziness [Warning Specific target organ toxicity, single exposure; Narcotic effects]; H402: Harmful 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: P261, P264, P264+P265, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P391, P403+P233, P405, and P501 (click each P-code to see the statement) Source: NITE-CMC
  • GHS Hazard Statements: H315: Causes skin irritation [Warning Skin corrosion/irritation]; H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation] Source: NITE-CMC
  • Precautionary Statement Codes: P264, P264+P265, P280, P302+P352, P305+P351+P338, P321, P332+P317, P337+P317, and P362+P364 (click each P-code to see the statement) Source: NITE-CMC
  • Cosmetic Ingredient Review Finding(s): Safe in the present practices of use and concentration. Ingredient, concentration, and use information are available in documents discoverable at https://cir-reports.cir-safety.org Source: Cosmetic Ingredient Review (CIR)
  • Environmental Bioconcentration: An estimated BCF of 3 was calculated in fish for nonanoic acid(SRC), using a log Kow of 3.42(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: TERRESTRIAL FATE: Based on a classification scheme(1), an estimated Koc value of 1,700 for the free acid(SRC), determined from a log Kow of 3.42(2) and a regression-derived equation(3), indicates that undissociated nonanoic acid is expected to have low mobility in soil(SRC). The pKa of nonanoic acid is 4.95(4), indicating that this compound will exist almost entirely in anion form in the environment and anions generally do not adsorb more strongly to soils containing organic carbon and clay than their neutral counterparts(5). Volatilization of nonanoic acid from moist soil surfaces is not expected to be an important fate process(SRC) given the pKa. Nonanoic acid is not expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 1.65X10-3 mm Hg(6). Biodegradation studies of nonanoic acid show a total organic carbon removal ratio of 99% using a non-acclimated activated sludge(7), and a BOD of 0.59 (g/g) after 5 days incubation using a sewage inoculum(8), suggesting biodegradation is 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 1,700 for the free acid(SRC), determined from a log Kow of 3.42(2) and a regression-derived equation(3), indicates that undissociated nonanoic acid is expected to adsorb to suspended solids and sediment(SRC). A pKa of 4.95(4) indicates nonanoic acid will exist almost entirely in the anion form at pH values of 5 to 9 and therefore volatilization from water surfaces is not expected to be an important fate process(5). According to a classification scheme(6), an estimated BCF of 3(SRC), from its log Kow(2) and a regression-derived equation(7), suggests the potential for bioconcentration in aquatic organisms is low(SRC). Biodegradation studies of nonanoic acid show a total organic carbon removal ratio of 99% using a non-acclimated activated sludge(8), and a BOD of 0.59 (g/g) after 5 days incubation using a sewage inoculum(9), suggesting biodegradation is an important environmental fate process in water(SRC). 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), nonanoic acid, which has a vapor pressure of 1.65X10-3 mm Hg at 25 °C(2), is expected to exist solely as a vapor in the ambient atmosphere. Vapor-phase nonanoic acid 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 1.6 days(SRC), calculated from its rate constant of 9.8X10-12 cu cm/molecule-sec at 25 °C(SRC) that was derived using a structure estimation method(3). Nonanoic acid does not contain chromophores that absorb at wavelengths >290 nm and therefore is not expected to be susceptible to direct photolysis by sunlight(4). Source: Hazardous Substances Data Bank (HSDB)
  • Cosmetic Ingredient Review Link: CIR ingredient: Pelargonic Acid Source: Cosmetic Ingredient Review (CIR)
  • Sources/Uses: Naturally occurs as an ester in oil of pelargonium; [Merck Index] Found in several essential oils; Used in lacquers, pharmaceuticals, plastics, and in esters for turbojet lubricants; Also used as a flavor and fragrance, flotation agent, gasoline additive, herbicide, blossom thinner for apple and pear trees, sanitizer, and to peel fruits and vegetables; [HSDB] Used to make peroxides and greases, as a catalyst for alkyd resins, in insect attractants, and as a topical bactericide and fungicide medication; [CHEMINFO] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
  • Industrial Processes with risk of exposure: Petroleum Production and Refining [Category: Industry]; Painting (Pigments, Binders, and Biocides) [Category: Paint]; Using Disinfectants or Biocides [Category: Clean]; Farming (Pesticides) [Category: Industry] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
  • Uses: For Nonanoic acid (USEPA/OPP Pesticide Code: 217500) ACTIVE products with label matches. /SRP: Registered for use in the U.S. but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses./ Source: Hazardous Substances Data Bank (HSDB)
  • Uses: Organic synthesis, lacquers, plastics, production of hydrotropic salts, pharmaceuticals, synthetic flavors and odors, flotation agent, esters for turbojet lubricants, vinyl plasticizer, gasoline additive. Source: Hazardous Substances Data Bank (HSDB)
  • Uses: CHEM INT FOR NONANOYL CHLORIDE Source: Hazardous Substances Data Bank (HSDB)
  • Uses: CHEM INT FOR SPECIALTY DIESTERS-EG, WITH PROPYLENE GLYCOL Source: Hazardous Substances Data Bank (HSDB)
  • Uses: For more Uses (Complete) data for NONANOIC ACID (7 total), please visit the HSDB record page. 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 112-05-0

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CAS 112-05-0 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 112-05-0 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.