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Merck

43318

Citral

analytical standard

Synonym(s):

3,7-Dimethyl-2,6-octadienal, Geranial and neral mixture

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About This Item

Linear Formula:
(CH3)2C=CHCH2CH2C(CH3)=CHCHO
CAS Number:
5392-40-5
Molecular Weight:
152.23
UNSPSC Code:
85151701
NACRES:
NA.24
PubChem Substance ID:
329756329
EC Number:
226-394-6
Beilstein/REAXYS Number:
1721871
MDL number:
MFCD00006997

Key Documents

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grade

analytical standard

Quality Level

100

vapor density

5 (vs air)

vapor pressure

0.2 mmHg ( 200 °C)

assay

≥95.0% (cis + trans, GC)

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

refractive index

n20/D 1.487-1.489, n20/D 1.488 (lit.)

bp

229 °C (lit.)

density

0.888 g/mL at 25 °C (lit.)

suitability

conforms to structure for Proton NMR spectrum

application(s)

cleaning products
cosmetics
environmental
flavors and fragrances
food and beverages
personal care

format

neat

storage temp.

2-8°C

SMILES string

[H]C(=O)C=C(C)CC\C=C(\C)C

InChI

1S/C10H16O/c1-9(2)5-4-6-10(3)7-8-11/h5,7-8H,4,6H2,1-3H3

InChI key

WTEVQBCEXWBHNA-UHFFFAOYSA-N

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General description

Citral usually is a key component of lemon scented essential oils and also in volatile oils of plants like ginger, which can exist like a mixture of two isomers, cis-isomer neral and trans-isomer geranial. It can serve as potential candidate used in the treatment of tumours. It can mainly find applications as a food additive and as a fragrance in cosmetics.
Citral, a volatile compound, is considered as an important raw material for lemon scented tea tree oil and Cymbopogon citratus volatile oil. It is used as an aroma ingredient in food products, aromatherapy, cosmetic industry, scenting of soaps and toiletries. The antimicrobial activity of this compound on the airborne microbes is investigated.

Application

Citral may be used as an analytical reference standard for the quantification of the analyte in:
  • Essential oils using reversed-phase high performance liquid chromatography with photodiode array detection (RP-HPLC-PDA), further confirmed by gas-chromatography coupled to mass spectrometry (GC-MS).
  • Cymbopogon citratus volatile oil using high performance liquid chromatography with UV detection (HPLC-UV) and gas chromatography coupled to mass spectrometry (GC-MS).

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1

Storage Class

10 - Combustible liquids

wgk

WGK 1

flash_point_f

208.4 °F - DIN 51758

flash_point_c

98 °C - DIN 51758

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Group 4: Flammable liquids + Type 3 petroleums + Hazardous rank III + Water insoluble liquid

fsl

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

43318-VAR: + 43318-1ML: + 43318-BULK:

jan

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Certificates of Analysis (COA)

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Antipyretic Effects of Citral and Possible Mechanisms of Action
Emilio-Silva.TM, et al.
Inflammation, 1-7 (2017)
Antimicrobial effect of trans-cinnamaldehyde,(?)-perillaldehyde,(?)-citronellal, citral, eugenol and carvacrol on airborne microbes using an airwasher
Sato K, et al.
Biological & Pharmaceutical Bulletin, 29(11), 2292-2294 (2006)
Citral is a new inducer of caspase-3 in tumor cell lines
Dudai N, et al.
Planta Medica, 71(05), 484-488 (2005)
Citral Assay, Determination of Citral in Lemongrass and Citrus Oils by Condensation with Barbituric Acid
Levi L and Laughton MP
Journal of Agricultural and Food Chemistry, 7(12), 850-859 (1959)
Antipyretic Effects of Citral and Possible Mechanisms of Action
Emilio-Silva.TM, et al.
Inflammation, 1-7 (2017)
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