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Home > Encyclopedia > α-Amyl trans-Cinnamaldehyde

α-Amyl trans-Cinnamaldehyde

α-Amyl trans-Cinnamaldehyde structure

α-Amyl trans-Cinnamaldehyde 

structure
  • CAS No:

    78605-96-6

  • Formula:

    C14H18O

  • Chemical Name:

    α-Amyl trans-Cinnamaldehyde

  • Synonyms:

    Heptanal,2-(phenylmethylene)-,(2E)-;Heptanal,2-(phenylmethylene)-,(E)-;(2E)-2-(Phenylmethylene)heptanal;α-Amyl trans-Cinnamaldehyde;Osminal;trans-3-Phenyl-2-pentylacrolein;(E)-2-Benzylideneheptanal;trans-2-Pentyl-3-phenyl-2-propenal;(E)-2-Benzylidene-heptanal;(2E)-2-Benzylideneheptanal

Description

Liquid|Pale yellowish liquid, strong floral odour suggestive of jasmine


2-Pentyl-3-phenyl-2-propenal is a member of cinnamaldehydes.

α-Amyl trans-Cinnamaldehyde Basic Attributes

202.29 g/mol

202.29

204-541-5|800-696-3|215-565-0

86L63D4ZJ7

6649

DTXSID8029157

Clear, yellow, oily liquid

Characteristics

17.1 Ų

3.8492

0.9711 g/cu m at 20 °C|0.962-0.969

280 - 286 °C

284 °C

Index of Refraction: 1.5381 at 20 °C|1.554-1.562

Soluble in acetone, carbon tetrachloride|Soluble in 6 volumes of 80% alcohol|Insoluble in water|insoluble in water|miscible (in ethanol)

0.00431 mm Hg at 25 °C (est)

Jasmine-like odor

Henry's Law constant = 7.8X10-6 atm-cu m/mole at 25 °C (est)

Hydroxyl radical reaction rate constant = 5.4X10-11 cu cm/molec-sec at 25 °C (est)

alpha-Amylcinnamaldehyde|D*: Other compounds that may form peroxides|Bretherick's|No peroxide incident data available, however this chemical is prone to spontaneious oxidative heating upon exposure to air. See Bretherick's.|Anon., Chem. Trade. J., 1937, 100, 362

Safety Information

SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational harm/injury/toxicity or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal and plant life; and conformance with environmental and public health regulations.

|Warning|H317 (99.1%): May cause an allergic skin reaction [Warning Sensitization, Skin]|P261, P272, P273, P280, P302+P352, P321, P333+P313, P363, P391, and P501|Aggregated GHS information provided by 2008 companies from 18 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|H317 (83.33%): May cause an allergic skin reaction [Warning Sensitization, Skin]|Aggregated GHS information provided by 6 companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|H315: Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P272, P280, P302+P352, P321, P332+P313, P333+P313, P362, P363, and P501

A severe skin irritant.

Toxicity

LD50 Rabbit dermal >2000 mg/kg bw|LD50 Rat oral 3730 mg/kg

alpha-Amyl cinnamaldehyde is a naturally occurring substance; /cinnamaldehyde/ is the predominant constituent of cassia oil and Ceylon cinnamon bark oil and is a common component of traditional foods; responsible for the spicy aroma strongly reminiscent of cinnamon spice(1).

alpha-Amyl cinnamaldehyde's production and use in perfumery and flavoring(1) may result in its release to the environment through various waste streams(SRC).

TERRESTRIAL FATE: Based on a classification scheme(1), an estimated Koc value of 680(SRC), determined from a structure estimation method(2), indicates that alpha-amyl cinnamaldehyde is expected to have low mobility in soil(SRC). Volatilization of alpha-amyl cinnamaldehyde from moist soil surfaces is expected to be an important fate process(SRC) given an estimated Henry's Law constant of 7.8X10-6 atm-cu m/mole(SRC), using a fragment constant estimation method(1). alpha-Amyl cinnamaldehyde is not expected to volatilize from dry soil surfaces based upon an estimated vapor pressure of 0.00431 mm Hg(SRC), determined from a fragment constant method(1); however, alpha-amyl cinnamaldehyde does volatilize in its consumer use as a perfume in soaps and detergents(3). Biodegradation is expected to be an important fate process in soil based on results of various various screening test(SRC). alpha-Amyl cinnamaldehyde, present at 100 mg/L, reached 51% of its theoretical BOD in 4 weeks using an activated sludge inoculum at 30 mg/L in the Japanese MITI test(4). Using OECD Method 301B (CO2 evolution), alpha-amyl cinnamaldehyde had a 65% degradation in 28 days indicating it was readily biodegradable(3). Using OECD Method 301F (Respirometric method/SAPROMAT), alpha-amyl cinnamaldehyde had a 90% degradation 28 days indicating it was readily biodegradable(3).|AQUATIC FATE: Based on a classification scheme(1), an estimated Koc value of 680(SRC), determined from a structure estimation method(2), indicates that alpha-amyl cinnamaldehyde 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 7.8X10-6 atm-cu m/mole(SRC), developed using a fragment constant estimation method(2). Using this Henry's Law constant and an estimation method(3), volatilization half-lives for a model river and model lake are 6.8 and 54 days, respectively(SRC). According to a classification scheme(4), an estimated BCF of 586(SRC), from a log Kow of 4.70(5), suggests the potential for bioconcentration in aquatic organisms is high(SRC). alpha-Amyl cinnamaldehyde is stable to hydrolysis in water(5); the aldehyde group has a potential to oxidize to carboxylic acid in water(5). Biodegradation is expected to be an important fate process in water based on results of various various screening test(SRC). alpha-Amyl cinnamaldehyde, present at 100 mg/L, reached 51% of its theoretical BOD in 4 weeks using an activated sludge inoculum at 30 mg/L in the Japanese MITI test(6). Using OECD Method 301B (CO2 evolution), alpha-amyl cinnamaldehyde had a 65% degradation in 28 days indicating it was readily biodegradable(5). Using OECD Method 301F (Respirometric method/SAPROMAT), alpha-amyl cinnamaldehyde had a 90% degradation 28 days indicating it was readily biodegradable(5).|ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), alpha-amyl cinnamaldehyde, which has an estimated vapor pressure of 0.00431 mm Hg at 25 °C(SRC), determined from a fragment constant method(2), is expected to exist solely as a vapor in the ambient atmosphere. Vapor-phase alpha-amyl cinnamaldehyde 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 7.2 hours(SRC), calculated from its rate constant of 5.4X10-11 cu cm/molecule-sec at 25 °C(SRC) that was derived using a structure estimation method(2). Vapor-phase alpha-amyl cinnamaldehyde is also degraded in the atmosphere by reaction with ozone(SRC); the half-life for this reaction in air is estimated to be 12.6 hours(SRC), calculated from its rate constant of 2.2X10-17 cu cm/molecule-sec at 25 °C(SRC) that was derived using a structure estimation method(2).

The rate constant for the vapor-phase reaction of alpha-amyl cinnamaldehyde with photochemically-produced hydroxyl radicals has been estimated as 5.4X10-11 cu cm/molecule-sec at 25 °C(SRC) using a structure estimation method(1). This corresponds to an atmospheric half-life of about 7.2 hours at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm(1). The rate constant for the vapor-phase reaction of alpha-amyl cinnamaldehyde with ozone has been estimated as 2.2X10-17 cu cm/molecule-sec at 25 °C(SRC) using a structure estimation method(1). This corresponds to an atmospheric half-life of about 12.6 hours at an atmospheric concentration of 7X10+11 ozone molecules per cu cm(1). alpha-Amyl cinnamaldehyde is stable to hydrolysis in water(2); the aldehyde group has a potential to oxidize to carboxylic acid in water(2).

An estimated BCF of 586 was calculated in fish for alpha-amyl cinnamaldehyde(SRC), using a log Kow of 4.70(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), provided the compound is not metabolized by the organism(SRC).

Using a structure estimation method based on molecular connectivity indices(1), the Koc of alpha-amyl cinnamaldehyde can be estimated to be 680(SRC). According to a classification scheme(2), this estimated Koc value suggests that alpha-amyl cinnamaldehyde is expected to have low mobility in soil.

The Henry's Law constant for alpha-amyl cinnamaldehyde is estimated as 7.8X10-6 atm-cu m/mole(SRC) using a fragment constant estimation method(1). This Henry's Law constant indicates that alpha-amyl cinnamaldehyde is expected to volatilize from water surfaces(2). Based on this Henry's Law constant, the volatilization half-life from a model river (1 m deep, flowing 1 m/sec, wind velocity of 3 m/sec)(2) is estimated as 6.8 days(SRC). The volatilization half-life from a model lake (1 m deep, flowing 0.05 m/sec, wind velocity of 0.5 m/sec)(2) is estimated as 54 days(SRC). alpha-Amyl cinnamaldehyde's Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). alpha-Amyl cinnamaldehyde is not expected to volatilize from dry soil surfaces(SRC) based upon an estimated vapor pressure of 0.00431 mm Hg(SRC), determined from a fragment constant method(1); however, alpha-amyl cinnamaldehyde does volatilize in its consumer use as a perfume in soaps and detergents(3).

According to the 2006 TSCA Inventory Update Reporting data, the number of persons reasonably likely to be exposed in the industrial manufacturing, processing, and use of alpha-amyl cinnamaldehyde is 100 to 999; the data may be greatly underestimated(1).|NIOSH (NOES Survey 1981-1983) has statistically estimated that 79,408 workers (47,945 of these were female) were potentially exposed to alpha-amyl cinnamaldehyde in the US(1). Occupational exposure to alpha-amyl cinnamaldehyde may occur through inhalation of vapor and dermal contact with this compound at workplaces where butyric anhydride is produced or used(SRC). The general population will be exposed to alpha-amyl cinnamaldehyde through its use in consumer products such as soaps, detergents and perfumes(2).

Drug Information

/SRP:/ Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand-valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR as necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. /Aldehydes and Related Compounds/|/SRP:/ Basic treatment: Establish a patent airway (oropharyngeal or nasopharyngeal airway, if needed). Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if necessary. Aggressive airway management may be necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Anticipate seizures and treat if necessary ... . Monitor for shock and treat if necessary ... . Monitor for pulmonary edema and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with 0.9% saline (NS) during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 ml/kg up to 200 ml of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool. Administer activated charcoal ... . /Aldehydes and Related Compounds/|/SRP:/ Advanced treatment: Consider Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious, has severe pulmonary edema, or is in severe respiratory distress. Intubation should be considered at the first sign of upper airway obstruction caused by edema. Positive-pressure ventilation techniques with a bag valve mask device may be beneficial. Consider drug therapy for pulmonary edema ... . Consider administering a beta agonist such as albuterol for severe bronchospasm ... . Start IV administration of D5W /SRP: "To keep open", minimal flow rate/. Use 0.9% saline (NS) or lactated Ringer's (LR) if signs of hypovolemia are present. For hypotension with signs of hypovolemia, administer fluid cautiously. Consider vasopressors if patient is hypotensive with a normal fluid volume. Watch for signs of fluid overload ... . Treat seizures with diazepam or lorazepam ... . Use proparacaine hydrochloride to assist eye irrigation ... . /Aldehydes and Related Compounds/

/SIGNS AND SYMPTOMS/ Sensitivity to alpha-amylcinnamic aldehyde (alpha-AcAld) is apparently uncommon, but, like allergy to alpha-amylcinnamic alcohol (alpha-AcAlc), it often accompanies allergy to the perfume in Mycolog cream. Although alpha-AcAlc is a known ingredient, alpha-AcAld is not. However, gas-liquid chromatographic analysis shows alpha-AcAld to be present. Of fourteen persons sensitive to either chemical, ten reacted to both. Of these, one man and three women were markedly sensitive, and all three women had chronic recalcitrant vulvar eczema. That condition might have been the cause as well as the result of sensitization, but reexposure to a suspected product reproduced the eruption in both persons tested. Its use with other potent sensitizers, e.g., ethylenediamine, to treat irritations and chronic eczemas in an area of high absorption may partly explain development of allergy to a relatively weak sensitizer.

2-pentylcinnamaldehyde

α-Amyl trans-Cinnamaldehyde Use and Manufacturing

Methods of Manufacturing

By condensation on n-amyl aldehyde with cinnamic aldehyde. This method of condensation of aromatic aldehydes with aliphatic aldehydes has the maximum yield in alpha-amylcinnamic aldehyde with little formation of the inferior homologs. The methyl, ethyl and propyl amylcinnamic aldehyde analogs exhibit a characteristic scent.

Uses

Flavor and Fragrance


Air care products

Production

1,000,000 - 10,000,000 lb|Heptanal, 2-(phenylmethylene)- is listed as a High Production Volume (HPV) chemical (65FR81686). Chemicals listed as HPV were produced in or imported into the U.S. in >1 million pounds in 1990 and/or 1994. The HPV list is based on the 1990 Inventory Update Rule. (IUR) (40 CFR part 710 subpart B; 51FR21438).|Production volumes for non-confidential chemicals reported under the Inventory Update Rule. [Table#7953]|Production volume for non-confidential chemicals reported under the 2006 Inventory Update Rule. Chemical: Heptanal, 2-(phenylmethylene)-. Aggregated National Production Volume: 500,000 to < 1 million pounds.

Grade: Technical, FCC

All other basic organic chemical manufacturing|Heptanal, 2-(phenylmethylene)-: ACTIVE|2-Propenal, 3-phenyl-, monopentyl deriv.: INACTIVE

Food additives -> Flavoring Agents|Cosmetics -> Masking

Flavoring Agents

Computed Properties

Molecular Weight:202.29
XLogP3:4.2
Hydrogen Bond Acceptor Count:1
Rotatable Bond Count:6
Exact Mass:202.135765193
Monoisotopic Mass:202.135765193
Topological Polar Surface Area:17.1
Heavy Atom Count:15
Complexity:199
Defined Bond Stereocenter Count:1
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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