ChemicalBook > CAS DataBase List > 2-METHYLUNDECANAL

2-METHYLUNDECANAL

Product Name
2-METHYLUNDECANAL
CAS No.
110-41-8
Chemical Name
2-METHYLUNDECANAL
Synonyms
MNA;ALDEHYDE C-12 MNA;ALDEHYDE C-12;METHYL NONYL ACETALDEHYDE;FEMA 2794;methyln-nonylaceticaldehyde;FEMA 2749;AldehydeMNA;aldehydem.n.a.;Aldehyde M.N.A.
CBNumber
CB3113392
Molecular Formula
C12H24O
Formula Weight
184.32
MOL File
110-41-8.mol
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2-METHYLUNDECANAL Property

Boiling point:
171 °C(lit.)
Density 
0.83 g/mL at 25 °C(lit.)
vapor pressure 
2.4Pa at 20℃
FEMA 
2749 | 2-METHYLUNDECANAL
refractive index 
n20/D 1.432(lit.)
Flash point:
200 °F
Odor
at 1.00 % in dipropylene glycol. fresh amber aldehydic moss citrus tuberose metallic waxy coumarinic
Odor Type
aldehydic
Water Solubility 
1.3mg/L at 20℃
JECFA Number
275
InChI
InChI=1S/C12H24O/c1-3-4-5-6-7-8-9-10-12(2)11-13/h11-12H,3-10H2,1-2H3
InChIKey
NFAVNWJJYQAGNB-UHFFFAOYSA-N
SMILES
C(=O)C(C)CCCCCCCCC
LogP
4.9 at 35℃
CAS DataBase Reference
110-41-8(CAS DataBase Reference)
EPA Substance Registry System
Undecanal, 2-methyl- (110-41-8)
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Safety

WGK Germany 
1
RTECS 
YQ1509000
Toxicity
The acute oral LD50 value was reported as > 5 g/kg in the rat . The acute dermal LD50 for sample no. 71-16 was reported to be > 10 g/kg in the rabbit
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H317May cause an allergic skin reaction

H400Very toxic to aquatic life

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P272Contaminated work clothing should not be allowed out of the workplace.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P321Specific treatment (see … on this label).

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P333+P313IF SKIN irritation or rash occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

P363Wash contaminated clothing before reuse.

P391Collect spillage. Hazardous to the aquatic environment

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

AK Scientific
Product number
1733BA
Product name
2-Methylundecanal
Packaging
100g
Price
$156
Updated
2021/12/16
Chem-Impex
Product number
34636
Product name
2-Methylundecanal,≥98%(GC),FG,KOSHER,FEMA2749Hazmat
Purity
≥98%(GC)
Packaging
170KG
Price
$3946.8
Updated
2021/12/16
AHH
Product number
MT-19099
Product name
2-Methylundecanal
Purity
98%
Packaging
10g
Price
$445
Updated
2021/12/16
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2-METHYLUNDECANAL Chemical Properties,Usage,Production

Description

2-Methylundecanal has a characteristic fatty odor assuming a floral note on dilution. It has an acrid, fatty unpleasant flavor at high levels. At low levels, the flavor is honey- and nut-like. It may be prepared by cracking the corresponding glycidic acid; from α-nonyl acrolein; from methyl nonyl ketone and ethyl monochloroacetate in the presence of sodium ethylate.

Chemical Properties

2-Methylundecanal has a characteristic fatty odor assuming a floral note on dilution. At high levels, it has an acrid, fatty, unpleasant flavor. At low levels, the flavor is honey and nut-like.

Chemical Properties

clear colourless to yellowish liquid

Occurrence

Reported found in kumquat peel oil.

Uses

Perfumery, flavoring.

Preparation

2-Methylundecanal is reported as being found in nature. It is a colorless liquid, with an odor markedly different from that of the isomeric dodecanal. It has a fatty odor with incense and ambergris notes.
2-Methylundecanal is produced by two routes:
1) 2-Undecanone is converted into its glycidate by reaction with an alkyl chloroacetate. Saponification of the glycidate, followed by decarboxylation, yields 2-methylundecanal.
2) The second synthesis is based on the conversion of undecanal into 2- methyleneundecanal by reaction with formaldehyde in the presence of catalytic amounts of amines. Hydrogenation of 2-methyleneundecanal yields methylnonylacetaldehyde (MNA). A convenient process starts from 1-decene: hydroformylation gives a mixture consisting mainly of undecanal and 2-methyldecanal. Reaction of the crude product with formaldehyde in the presence of dibutylamine yields a mixture containing over 50% 2-methyleneundecanal. After hydrogenation of the double bond, pure 2-methylundecanal is separated from the by-products by fractional distillation.
In comparison with other fatty aldehydes, 2-methylundecanal is used in perfumery in rather large amounts to impart conifer notes, particularly fir impressions, but frequently also in fantasy compositions.

Taste threshold values

Taste characteristics at 2 ppm: waxy, fatty, metallic with a citrus nuance.

Flammability and Explosibility

Non flammable

Safety Profile

Low toxicity by ingestion and skin contact. When heated to decomposition it emits acrid smoke and irritating fumes.

Synthesis

By cracking the corresponding glycidic acid; from α-nonyl acrolein; from methyl nonyl ketone and ethyl monochloroacetate in the presence of sodium ethylate

Metabolism

See monograph on aldehyde C-8*.

2-METHYLUNDECANAL Preparation Products And Raw materials

Raw materials

Acrolein DL-GLYCERIC ACID 2-Undecanone Glycidol Sodium ethoxide METHYLNONYLKETONE(SG) Ethyl chloroacetate

Preparation Products

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2-METHYLUNDECANAL Suppliers

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View Lastest Price from 2-METHYLUNDECANAL manufacturers

Hebei Weibang Biotechnology Co., Ltd
Product
2-METHYLUNDECANAL 110-41-8
Price
US $30.00-10.00/KG
Min. Order
50KG
Purity
99%
Supply Ability
500000kg
Release date
2024-10-24
JINING XINHE CHEMICAL CO., LTD
Product
2-METHYLUNDECANAL 110-41-8
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
98%
Supply Ability
10ton
Release date
2024-07-22
Hebei Kingfiner Technology Development Co.Ltd
Product
2-METHYLUNDECANAL 110-41-8
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
50000kg
Release date
2024-06-24

110-41-8, 2-METHYLUNDECANALRelated Search:

11ALPHA-HYDROXYPROGESTERONE 19-HYDROXY-4-ANDROSTENE-3,17-DIONE AGARIC ACID Dehydroepiandrosterone 5-ANDROSTENEDIOL Progesterone Androsta-1,4-diene-3,17-dione CORTISONE Prednisone Cortisone acetate Pregnenolone acetate Adrenosterone Pregnenolone Androsterone Prednisolone Undecanal 2-METHYLUNDECANE 11-KETOANDROSTERONE

  • 2-METHYLUNDECANAL
  • 2-METHYLUNDECYL ALDEHYDE
  • 2-METHYLHENDECANAL
  • 2-METHYLNONYLACETALDEHYDE
  • ALDEHYDE C-12 MNA
  • ALDEHYDE C-12
  • FEMA 2749
  • FEMA 2794
  • Aldehyde M.N.A.
  • aldehydem.n.a.
  • AldehydeMNA
  • METHYL-N-NONYLACETALDEHYDE
  • METHYL NONYL ACETALDEHYDE
  • 2-Methyl-1-undecanal
  • 2-methyl-undecana
  • Methyl Nonyl Actaldehyde
  • methyln-nonylaceticaldehyde
  • Methylnonylacetic aldehyde
  • -Methylundecanal
  • Undecanal,2-methyl-
  • 2-methyl n-undecanoic aldehyde
  • 2-METHYLUNDECANAL 94+% FCC
  • Isododecylic aldehyde
  • 2-METHYLUNDECANAL FCC
  • 2-Methylundecanal,95%
  • MNA
  • ALDEHYDE,METHYLNONYLACETIC
  • ALDEHYD C 12 MNA (METHYLUNDECANAL, 2-)
  • 2-METHYLUNDECANAL USP/EP/BP
  • 2-methyl undecanal (aldehyde C-12 mna)
  • TIANFU-CHEM - 2-METHYLUNDECANAL
  • 110-41-8
  • CH3CH29CHCH3CHO
  • CH3CH28CHCH3CHO
  • 110418
  • Organic Building Blocks
  • Aldehydes
  • Building Blocks
  • C10 to C21
  • Carbonyl Compounds
  • ALDEHYDE
  • Alphabetical Listings
  • Flavors and Fragrances
  • M-N
  • Aldehydes
  • C10 to C21
  • Carbonyl Compounds
  • Industrial/Fine Chemicals