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CAS 103-41-3

CAS 103-41-3 matches 1 EU annex record across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 103-41-3
CAS 103-41-3PubChem CID 5273469

Benzyl Cinnamate

Benzyl cinnamate is the cinnamate ester derived from cinnamic acid and benzyl alcohol. Occuring in Balsam of Peru and Tolu balsam, in Sumatra and Penang benzoin, and as the main constituent of copaiba balsam, it is used in heavy oriental perfumes, as a fixative and as a flavouring agent. It has a role as a flavouring agent, a fragrance, a fixative, an epitope and an antigen. — ChEBI

IUPAC name
benzyl (E)-3-phenylprop-2-enoate
Molecular formula
C16H14O2
Molecular weight
238.28 g/mol
Exact mass
238.099379685 Da
XLogP3
3.8
Topological polar surface area
26.3 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

CinnameinBenzyl 3-phenylpropenoatetrans-Cinnamic acid benzyl esterCinnamic acid, benzyl esterBenzylcinnamateBenzyl alcohol, cinnamic esterFEMA No. 2142Benzyl-3-phenylpropenoate
16 more reported names
Benzyl gamma-phenylacrylateBenzylester kyseliny skoricove3-Phenyl-2-propenoic acid phenylmethyl esterV67O3RO97UCHEBI:146174NSC-11780NSC-44403benzyl (2Z)-3-phenylprop-2-enoateRefChem:566743203-109-3Cinnamic acid benzyl esterNSC 11780benzyl (2E)-3-phenylprop-2-enoateBenzyl cinnamate (Standard)Benzyl cinnamate, >=98%3-Phenyl-2-propenoic acid benzyl ester
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match5273469

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

  • Signal: Warning Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H317 (99.8%): May cause an allergic skin reaction [Warning Sensitization, Skin]; H411 (99.5%): 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 1794 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)
  • Environmental Bioconcentration: An estimated BCF of 270 was calculated for benzyl cinnamate(SRC), using an estimated log Kow of 4.1(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is high(SRC). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: TERRESTRIAL FATE: Based on a classification scheme(1), an estimated Koc value of 10,400(SRC), determined from a structure estimation method(2), indicates that benzyl cinnamate is expected to be immobile in soil(SRC). Volatilization of benzyl cinnamate from moist soil surfaces is not expected to be an important fate process(SRC) given an estimated Henry's Law constant of 3.3X10-7 atm-cu m/mole(SRC), using a fragment constant estimation method(3). Benzyl cinnamate is not expected to volatilize from dry soil surfaces(SRC) based upon an estimated vapor pressure of 1X10-5 mm Hg(4). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: AQUATIC FATE: Based on a classification scheme(1), an estimated Koc value of 10,390(SRC), determined from a structure estimation method(2), indicates that benzyl cinnamate is expected to adsorb to suspended solids and sediment(SRC). Volatilization from water surfaces is not expected(3) based upon an estimated Henry's Law constant of 3.3X10-7 atm-cu m/mole(SRC), developed using a fragment constant estimation method(4). A base-catalyzed second-order hydrolysis rate constant of 3.8X10-2 L/mole-sec(SRC) was estimated using a structure estimation method(5); this corresponds to half-lives of 6 years and 211 days at pH values of 7 and 8, respectively(5). According to a classification scheme(6), an estimated BCF of 269(SRC), from an estimated log Kow of 4.06(7) and a regression derived equation(8), suggests the potential for bioconcentration in aquatic organisms is high(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), benzyl cinnamate, which has an estimated vapor pressure of 1X10-5 mm Hg at 25 °C(2), will exist in both the vapor and particulate phases in the ambient atmosphere. Vapor-phase benzyl cinnamate 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 14 hours for the cis-isomer and 13 hours for the trans-isomer of benzyl cinnamate(SRC), calculated from their rate constants of 28X10-12 and 31X10-12 cu cm/molecule-sec at 25 °C, respectively(SRC), determined using a structure estimation method(3). Particulate-phase benzyl cinnamate may be removed from the air by wet and dry deposition(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.

Records for CAS 103-41-3

1 total
Annex
III
Entry
81

Benzyl cinnamate

2-Propenoic acid, 3-phenyl-, phenylmethyl ester

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

EC
203-109-3

How CAS 103-41-3 is used on this site

CAS 103-41-3 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.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 103-41-3 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.

Frequently asked questions

A substance identified by CAS 103-41-3 may appear in multiple EU cosmetic regulation annexes when it is subject to different conditions in different contexts. For example, a substance might be restricted under Annex III with specific conditions, and the same CAS might also appear in Annex IV as an approved colorant under separate entry conditions. Each entry must be reviewed individually.

Cross-reference the CAS number against your raw material specification sheets and CoA documents. When a CAS appears in Annex II, verify absence. When it appears in Annex III, verify that concentration limits and product type conditions are met in your formulation. All annex entries sharing this CAS number are listed above.

A CAS number is assigned by the Chemical Abstracts Service (USA) and is globally recognised. An EC number is a European Commission identifier from inventories such as EINECS, ELINCS or the NLP list. Both identifiers may appear in EU cosmetic annex entries. Some substances have both, some have only one, and some older entries may have neither.

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