ChemicalBook > CAS DataBase List > 2-Methyl-2-pentenal

2-Methyl-2-pentenal

Product Name
2-Methyl-2-pentenal
CAS No.
623-36-9
Chemical Name
2-Methyl-2-pentenal
Synonyms
FEMA 3194;Methyl-2-pente;2-Methylpentenal;CH3CH2CH=C(CH3)CHO;2-methyl-2-pentena;2-METHYL-2-PERTENAL;2-METHYLPENT-2-ENAL;2-METHYL-2-PENTENAL;2-Pentenal,2-methyl-;2-METHYL-2-PENTENE-AL
CBNumber
CB5853997
Molecular Formula
C6H10O
Formula Weight
98.14
MOL File
623-36-9.mol
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2-Methyl-2-pentenal Property

Melting point:
-90°C
Boiling point:
137-138 °C/765 mmHg (lit.)
Density 
0.86 g/mL at 25 °C (lit.)
refractive index 
n20/D 1.45(lit.)
FEMA 
3194 | 2-METHYL-2-PENTENAL
Flash point:
89 °F
storage temp. 
Flammables area
form 
Liquid
color 
Clear colorless to pale yellow
Odor
at 10.00 % in dipropylene glycol. aldehydic green cortex fruity alliaceous ripe cherry earthy
Odor Type
green
Water Solubility 
20g/L(20 ºC)
Sensitive 
Air Sensitive
JECFA Number
1209
BRN 
506124
LogP
1.60
EPA Substance Registry System
2-Pentenal, 2-methyl- (623-36-9)
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Safety

Hazard Codes 
Xn
Risk Statements 
10-20-36-43-41
Safety Statements 
26-39-37-27-24
RIDADR 
UN 1989 3/PG 3
WGK Germany 
1
RTECS 
SB2100000
TSCA 
Yes
HazardClass 
3
PackingGroup 
III
HS Code 
29121990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H226Flammable liquid and vapour

H317May cause an allergic skin reaction

H318Causes serious eye damage

H331Toxic if inhaled

H412Harmful to aquatic life with long lasting effects

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P273Avoid release to the environment.

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

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
W319406
Product name
2-Methyl-2-pentenal
Purity
≥97%,FG
Packaging
1kg
Price
$210
Updated
2024/03/01
Sigma-Aldrich
Product number
W319406
Product name
2-Methyl-2-pentenal
Purity
≥97%,FG
Packaging
4kg
Price
$809
Updated
2024/03/01
Sigma-Aldrich
Product number
294667
Product name
2-Methyl-2-pentenal
Purity
97%
Packaging
25g
Price
$57.1
Updated
2024/03/01
Sigma-Aldrich
Product number
294667
Product name
2-Methyl-2-pentenal
Purity
97%
Packaging
100g
Price
$109
Updated
2024/03/01
Alfa Aesar
Product number
A15729
Product name
2-Methyl-2-pentenal, (E)+(Z), 97%
Packaging
25g
Price
$30.65
Updated
2024/03/01
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2-Methyl-2-pentenal Chemical Properties,Usage,Production

Description

2-Methyl-2-pentenal has a powerful grassy-green, slightly fruity odor and can be prepared synthetically by aldolic condensation of propionaldehyde.

Chemical Properties

2-Methyl-2-pentenal has a powerful, grassy-green, slightly fruity odor.

Chemical Properties

clear colorless to pale yellow liquid

Occurrence

Reported found as a volatile component in onion. Also reported found in roasted onion, roasted peanut, cranberry, guava, grapes, grape brandy, papaya, shallots, leek, chive, fried potato, mustard, parmesan cheese, fish, roast chicken, cooked beef, beer, cognac, coffee, tea, peanut, Japanese plum, mango, walnut, prickly pear, pumpkin, oysters, lamb’s lettuce and maté

Preparation

By aldolic condensation of propionaldehyde.

Aroma threshold values

Recognition: 290 ppb. Aroma characteristics at: 1.0%: ethereal and pungent acrylate and acetophenonelike, penetrating, irritating with a fresh green juicy-fruity nuance.

Taste threshold values

Taste characteristics at 5 ppm: sweet, tangy, juicy fruit, cherry, almond, citrus and topical with a slight penetrating burning sensation and jamy brown with an alliaceous sharpness.

Synthesis Reference(s)

The Journal of Organic Chemistry, 48, p. 1939, 1983 DOI: 10.1021/jo00159a042

General Description

2-Methyl-2-pentenal has been identified as one of the major volatile flavor compounds in chive, caucas, onion and leek.

2-Methyl-2-pentenal Preparation Products And Raw materials

Raw materials

Preparation Products

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2-Methyl-2-pentenal Suppliers

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View Lastest Price from 2-Methyl-2-pentenal manufacturers

Zhuozhou Wenxi import and Export Co., Ltd
Product
2-Methyl-2-pentenal 623-36-9
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-06-27
Career Henan Chemical Co
Product
2-Methyl-2-pentenal 623-36-9
Price
US $8.80/KG
Min. Order
1KG
Purity
97%-99%
Supply Ability
100kg
Release date
2019-07-10

623-36-9, 2-Methyl-2-pentenalRelated Search:

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  • Methyl-2-pente
  • (2E)-2-Methyl-2-pentenal
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  • 2-methyl-2-pentena
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  • 623-36-9 2-Methyl-2-pentenal C6H10O
  • 623-36-9
  • C2H5CHCCH3CHO
  • ALDEHYDE
  • Aldehydes
  • Building Blocks
  • Carbonyl Compounds
  • C1 to C6
  • Organic Building Blocks
  • Alphabetical Listings
  • Flavors and Fragrances
  • M-N
  • Aldehydes
  • C1 to C6
  • Carbonyl Compounds