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CAS 104-28-9

CAS 104-28-9 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 104-28-9
CAS 104-28-9PubChem CID 5373773

Cinoxate

2-ethoxyethyl-p-methoxycinnamate is a viscous clear to pale yellow liquid. Insoluble in water. (NTP, 1992) — CAMEO Chemicals

IUPAC name
2-ethoxyethyl (E)-3-(4-methoxyphenyl)prop-2-enoate
Molecular formula
C14H18O4
Molecular weight
250.29 g/mol
Exact mass
250.12050905 Da
XLogP3
2.4
Topological polar surface area
44.8 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
4
Covalent units
1
Defined stereocentres
0

Also known as

PhiasolSundareGive-TanCinoxatoGiv Tan F2-ETHOXYETHYL P-METHOXYCINNAMATECinoxatum2-Propenoic acid, 3-(4-methoxyphenyl)-, 2-ethoxyethyl ester
16 more reported names
2-Ethoxyethyl-p-methoxycinnamate3-(4-Methoxyphenyl)-2-propenoic acid 2-ethoxyethyl ester5437O7N5BHCinnamic acid, p-methoxy-, 2-ethoxyethyl ester2-ethoxyethyl (2E)-3-(4-methoxyphenyl)prop-2-enoateRefChem:577241203-191-0Giv-tan F2-ethoxyethyl 3-(4-methoxyphenyl)prop-2-enoatePropenoic acid, 3-(4-methoxyphenyl)-, 2-ethoxyethyl esterGiv TanfCaswell No. 427ECinoxatum [INN-Latin]Cinoxato [INN-Spanish]CCRIS 4813HSDB 7424
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match5373773

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

  • First Aid: EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.; SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.; INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) shou Source: CAMEO Chemicals
  • Environmental Bioconcentration: An estimated BCF of 26 was calculated for cinoxate in fish(SRC), using an estimated log Kow of 2.65(1) and a regression-derived equation(1). According to a classification scheme(2), 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 208(SRC), determined from a structure estimation method(2), indicates that cinoxate is expected to have moderate mobility in soil(SRC). Volatilization of cinoxate from moist soil surfaces is not expected to be an important fate process(SRC) given an estimated Henry's Law constant of 5.1X10-9 atm-cu m/mole(SRC), using a fragment constant estimation method(2). Cinoxate is not expected to volatilize from dry soil surfaces(SRC) based upon an estimated vapor pressure of 1.6X10-5 mm Hg(SRC), determined from a fragment constant method(2). Cinoxate absorbs UV light in the sunlight spectrum(3) and, therefore, may be susceptible to direct photolysis on soil surfaces exposed to sunlight(SRC). No relevant data were available to assess the importance of biodegradation in the environment(SRC). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: AQUATIC FATE: Based on a classification scheme(1), an estimated Koc value of 208(SRC), determined from a structure estimation method(2), indicates that cinoxate may have some moderate adsorption to suspended solids and sediment(SRC). Volatilization from water surfaces is not expected(3) based upon an estimated Henry's Law constant of 5.1X10-9 atm-cu m/mole(SRC), developed using a fragment constant estimation method(1). According to a classification scheme(4), an estimated BCF of 26(SRC), from an estimated log Kow of 2.65(2) and a regression-derived equation(2), suggests the potential for bioconcentration in aquatic organisms is low (SRC). A base-catalyzed second-order hydrolysis rate constant of 2.5X10-2 L/mole-sec(SRC) was estimated using a structure estimation method(2); this corresponds to half-lives of 8.9 and 0.89 years at pH values of 7 and 8, respectively(2). Cinoxate absorbs UV light in the sunlight spectrum(5) and, therefore, may be susceptible to direct photolysis on water surfaces exposed to sunlight(SRC). No relevant data were available to assess the importance of biodegradation in the environment(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), cinoxate, which has an estimated vapor pressure of 1.6X10-5 mm Hg at 25 °C(SRC), determined from a fragment constant method(2), will exist in both the vapor and particulate phases in the ambient atmosphere. Vapor-phase cinoxate 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 6.7 hours(SRC), calculated from its rate constant of 5.7X10-11 cu cm/molecule-sec at 25 °C(SRC) that was derived using a structure estimation method(2). Vapor-phase cinoxate is also degraded in the atmosphere by reaction with ozone (SRC); the half-life for this reaction in air is estimated to be about 19 hours(SRC), calculated from its rate constant of 1.6X10-17 cu cm/molecule-sec at 25 °C(SRC) that was derived using a structure estimation method(2). Particulate-phase cinoxate may be removed from the air by wet and dry deposition(SRC). Cinoxate absorbs UV light in the sunlight spectrum(3) and, therefore, may be susceptible to direct photolysis by sunlight(SRC). 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
EMBL-EBI ChEBINo exact record2026-08-31
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 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

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How CAS 104-28-9 is used on this site

CAS 104-28-9 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 104-28-9 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.