ChemicalBook > CAS DataBase List > 3-Methyl-2-butenal

3-Methyl-2-butenal

Product Name
3-Methyl-2-butenal
CAS No.
107-86-8
Chemical Name
3-Methyl-2-butenal
Synonyms
2-Butenal, 3-methyl-;PRENAL;3-METHYLCROTONALDEHYDE;SENECIALDEHYDE;3-methyl-but-2-enal;Crotonaldehyde, 3-methyl-;FEMA 3646;-2-butenaL;Senecioaldehyde;3-methyl-2-butena
CBNumber
CB9273962
Molecular Formula
C5H8O
Formula Weight
84.12
MOL File
107-86-8.mol
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3-Methyl-2-butenal Property

Melting point:
-20°C
Boiling point:
133-135 °C (lit.)
Density 
0.878 g/mL at 20 °C 0.872 g/mL at 25 °C (lit.)
vapor pressure 
7 mm Hg ( 20 °C)
refractive index 
n20/D 1.462(lit.)
FEMA 
3646 | 3-METHYL-2-BUTENAL
Flash point:
93 °F
storage temp. 
2-8°C
solubility 
soluble
form 
Liquid
color 
Clear colorless to light yellow
Odor
at 1.00 % in dipropylene glycol. sweet fruity pungent brown nutty almond cherry
Odor Type
fruity
biological source
synthetic
Water Solubility 
soluble
Sensitive 
Air Sensitive
Merck 
14,8448
JECFA Number
1202
BRN 
1734740
LogP
0.53 at 25℃
CAS DataBase Reference
107-86-8(CAS DataBase Reference)
NIST Chemistry Reference
3-methyl-2-butenal(107-86-8)
EPA Substance Registry System
2-Butenal, 3-methyl- (107-86-8)
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Safety

Hazard Codes 
Xn,Xi,C
Risk Statements 
10-22-37/38-41-43-36/37/38-34-20/22-20/21/22
Safety Statements 
26-36-37/39-16-45-36/37/39
RIDADR 
UN 1989 3/PG 3
WGK Germany 
2
9-13-23
TSCA 
Yes
HazardClass 
3
PackingGroup 
III
HS Code 
29121900
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H226Flammable liquid and vapour

H302Harmful if swallowed

H314Causes severe skin burns and eye damage

H317May cause an allergic skin reaction

H331Toxic if inhaled

Precautionary statements

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

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

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

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
W364620
Product name
3-Methyl-2-butenal
Purity
≥97%, FG
Packaging
1 unit
Price
$54.6
Updated
2025/07/31
Sigma-Aldrich
Product number
W364620
Product name
3-Methyl-2-butenal
Purity
≥97%, FG
Packaging
1 unit
Price
$54.6
Updated
2025/07/31
Sigma-Aldrich
Product number
W364620
Product name
3-Methyl-2-butenal
Purity
≥97%, FG
Packaging
25g
Price
$74.95
Updated
2025/07/31
Sigma-Aldrich
Product number
W364620
Product name
3-Methyl-2-butenal
Purity
≥97%, FG
Packaging
100g
Price
$98.9
Updated
2025/07/31
Sigma-Aldrich
Product number
W364620
Product name
3-Methyl-2-butenal
Purity
≥97%, FG
Packaging
1kg
Price
$1470
Updated
2025/07/31
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3-Methyl-2-butenal Chemical Properties,Usage,Production

Description

3-Methyl-2-butenal has an almond odor.

Chemical Properties

3-Methyl-2-butenal has an almond odor

Chemical Properties

clear colorless to light yellow liquid

Uses

3-Methyl-2-butenal is used in small quantities as food flavor in alcoholic beverages, chewing gums, confection frosting, frozen dairy, fruit ice, gelatin pudding, hard and soft candy and jam jelly. Used in daily flavor, and cosmetic flavor in perfumes. A starting material for the synthesis of vitamin A.

Definition

ChEBI: An enal consisting of but-2-ene with a methyl substituent at position 3 and an oxo group at position 1.

Taste threshold values

Taste characteristics at 25 ppm: sweet, fruity and green with a nutty and cherry background.

General Description

3-Methylcrotonaldehyde is an α, β-unsaturated aldehyde. Electrochemical dimerization of 3-methylcrotonaldehyde was reported. The hydrogenation of 3-methylcrotonaldehyde over Ru, Pt and Rh was investigated.

Purification Methods

This flammable oil oxidises readily and should be fractionated under N2. It should be stored under N2 and/or vacuum. The UV has max at 235.5nm. The semicarbazone has m 221-222o (from MeOH) and the 2,4-dinitrophenylhydrazone has m 184-185o (from MeOH). [Forbes & Skilton J Org Chem 24 436 1959, Beilstein 1 III 2990, 1 IV 3464.]

3-Methyl-2-butenal Preparation Products And Raw materials

Raw materials

Preparation Products

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3-Methyl-2-butenal Suppliers

Jinan Winsor Pharmaceutical Co., Ltd
Tel
152-64160071 15318402391
Fax
QQ:1790106626
Email
1615850970@qq.com
Country
China
ProdList
440
Advantage
58
Shanghai Kaisai Chemical Co., Ltd
Tel
021-33516722 13701817765
Fax
021-33516776
Email
kaisaichem@163.com
Country
China
ProdList
4610
Advantage
58
Nanjing Jiaju Pharmaceutical Technology Co., Ltd.
Tel
13022518189
Email
321278398@qq.com
Country
China
ProdList
148
Advantage
58
Zhongsu Supply Chain Management (Shandong) Co.,Ltd.
Tel
+86-18668991216 +86-18953135066
Email
zsscm01@163.com
Country
China
ProdList
297
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58
Dexin chemical (Shandong) Co. , Ltd.
Tel
15853369661
Email
1092794701@qq.com
Country
China
ProdList
154
Advantage
58
Beijing FYF Chemicals Co., Ltd
Tel
010-57903446 15869909019
Email
168931144@qq.com
Country
China
ProdList
4965
Advantage
58
J & K SCIENTIFIC LTD.
Tel
18210857532; 18210857532
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
ShangHai DEMO Chemical Co.,Ltd
Tel
400-021-7337 2355568890
Fax
0086-21-50182339
Email
sales@demochem.com
Country
China
ProdList
2572
Advantage
57
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View Lastest Price from 3-Methyl-2-butenal manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
3-Methyl-2-butenal 107-86-8
Price
US $120.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20ton
Release date
2024-06-07
JINING XINHE CHEMICAL CO., LTD
Product
3-Methyl-2-butenal 107-86-8
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
98.99%
Supply Ability
10
Release date
2024-07-15
Career Henan Chemical Co
Product
3-Methyl-2-butenal 107-86-8
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
Customized
Release date
2019-06-24

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