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3-Methyl-2-buten-1-ol

3-Methyl-2-buten-1-ol Structure
3-Methyl-2-buten-1-ol structure
CAS No.
556-82-1
Chemical Name:
3-Methyl-2-buten-1-ol
Synonyms
PRENOL;3-methylbut-2-en-1-ol;PRENYL ALCOHOL;3-Methyl-2-butenol;2-Buten-1-ol, 3-methyl-;ISOPENTENOL;3-METHYL-2-BUTENE-1-OL;FEMA 3647;ISOPENTENYL ALCOHOL;ISOBUTENYLCARBINOL
CBNumber:
CB6270814
Molecular Formula:
C5H10O
Molecular Weight:
86.13
MDL Number:
MFCD00002916
MOL File:
556-82-1.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-06-16 21:18:09
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3-Methyl-2-buten-1-ol Properties

Melting point 43.52°C
Boiling point 140 °C(lit.)
Density 0.848 g/mL at 25 °C(lit.)
vapor pressure 1.4 mm Hg ( 20 °C)
refractive index n20/D 1.443(lit.)
FEMA 3647 | 3-METHYL-2-BUTEN-1-OL
FLAVIS Number 02.109 | 3-Methylbut-2-en-1-ol
Flash point 110 °F
storage temp. Sealed in dry,2-8°C
solubility 64g/l
form Liquid
pka 14.83±0.10(Predicted)
color Clear colorless to very slightly yellow
Odor at 100.00 %. fruity green lavender
Odor Type fruity
biological source synthetic
explosive limit 2.7-16.3%(V)
Water Solubility 170 g/L (20 ºC)
JECFA Number 1200
BRN 1633479
Cosmetics Ingredients Functions PERFUMING
InChI 1S/C5H10O/c1-5(2)3-4-6/h3,6H,4H2,1-2H3
InChIKey ASUAYTHWZCLXAN-UHFFFAOYSA-N
SMILES C\C(C)=C\CO
LogP 1.24
CAS DataBase Reference 556-82-1(CAS DataBase Reference)
Substances Added to Food (formerly EAFUS) 3-METHYL-2-BUTEN-1-OL
EWG's Food Scores 1
FDA UNII 55MY0HM445
NIST Chemistry Reference 2-Buten-1-ol, 3-methyl-(556-82-1)
EPA Substance Registry System 2-Buten-1-ol, 3-methyl- (556-82-1)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Flame (GHS02)Corrosion (GHS05)Exclamation Mark (GHS07)
GHS02,GHS05,GHS07
Signal word  Danger
Hazard statements  H226-H302+H332-H314-H335
Precautionary statements  P210-P280-P301+P312-P303+P361+P353-P304+P340+P310-P305+P351+P338
target organs Respiratory system
PPE Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes  Xn
Risk Statements  10-22-36/37/38-38-21/22
Safety Statements  26-36-37-23-16
RIDADR  UN 1987 3/PG 3
WGK Germany  1
RTECS  EM9472500
TSCA  TSCA listed
HazardClass  3
PackingGroup  III
HS Code  29052990
Storage Class 3 - Flammable liquids
Hazard Classifications Acute Tox. 4 Inhalation
Acute Tox. 4 Oral
Eye Dam. 1
Flam. Liq. 3
Skin Corr. 1B
STOT SE 3
REACH Registrations Active
Limited Quantities 5.0 L (1.3 gallons) (liquid)
Excepted Quantities Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
NFPA 704
2
3 0

3-Methyl-2-buten-1-ol price More Price(50)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich W364703 3-Methyl-2-buten-1-ol ≥98%, FG 556-82-1 1 each $57.2 2026-04-30 Buy
Sigma-Aldrich W364703 3-Methyl-2-buten-1-ol ≥98%, FG 556-82-1 1kg $77.5 2026-04-30 Buy
Sigma-Aldrich W364703 3-Methyl-2-buten-1-ol ≥98%, FG 556-82-1 4kg $208 2026-04-30 Buy
Sigma-Aldrich 162353 3-Methyl-2-buten-1-ol 99% 556-82-1 5ml $40.1 2026-04-30 Buy
Sigma-Aldrich 162353 3-Methyl-2-buten-1-ol 99% 556-82-1 100ml $70.5 2026-04-30 Buy
Product number Packaging Price Buy
W364703 1 each $57.2 Buy
W364703 1kg $77.5 Buy
W364703 4kg $208 Buy
162353 5ml $40.1 Buy
162353 100ml $70.5 Buy

3-Methyl-2-buten-1-ol Chemical Properties, Uses, Production

Description

3-Methyl-2-buten-l-ol has a phenolic, metallic odor bearing a resemblance to iron gallate ink. May be synthesized from isoprene by hydration via prenyl acetate or by rearrangement of 3-methyll-buten-3-ol.

Chemical Properties

3-Methyl-2-buten-1-ol has a phenolic, metallic odor bearing a resemblance to iron gallate ink

Chemical Properties

clear colourless to very slightly yellow liquid

Uses

3-Methyl-2-buten-1-ol is used as a reagent for protection of carboxylic acids as their 3-methyl-2-buten-1-yl (Prenyl) esters. It is also used in perfumery.

Uses

3-Methyl-2-buten-1-ol was used as starting reagent during asymmetric total syntheses of (R)-(+)- and (S)-(-)-umbelactone via Sharpless asymmetric epoxidation reaction.

Definition

ChEBI: Prenol is an alkenyl alcohol and a member of prenols.

General Description

3-Methyl-2-buten-1-ol reacts with nitrosocarbonyl benzene to yield 5-hydroxy-isoxazolidines. It is commonly used as fragrance ingredient.

Flammability and Explosibility

Flammable

Synthesis

Prenol's two synthesis methods: 1) from Isoprene by hydration via Phenylacetate. 2) from Dimethyl vinylcarbinol with diluted Sulfuric acid.

3-Methyl-2-buten-1-ol Preparation Products And Raw materials

Raw materials

Isobutylene tert-Butanol Paraformaldehyde 3-Methyl-1-butene Isoprene

Preparation Products

Methyl 3,3-dimethylpent-4-enoate ethyl 3-(2,2-dichlorovinyl)-2,2-dimethyl-1-cyclopropanecarboxylate Cyfluthrin Methyl 3-(2,2-dichlorovinyl)-2,2-dimethyl-(1-cyclopropane)carboxylate 3-Methyl-3-buten-1-ol
Isopentyl ether Permethric acid Cyclopropanemethanol, 2,2-dimethyl-3-(2-methyl-1-propen-1-ylidene)-

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3-Methyl-2-buten-1-ol Suppliers

Global Suppliers ( 404)
Supplier Tel Email Country ProdList Advantage
Nanjing Abix Biochemical Technology Co., Ltd. 025-87193546 18652950785; chemweiao@163.com China 9009 60
Shandong Qianyuan Polymer Material Co. , Ltd. 18678041314 18765609661 2547772582@qq.com China 987 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Beijing Ouhe Technology Co., Ltd 13552068683 13522913783 2355560935@qq.com China 11777 60
JinYan Chemicals(ShangHai) Co.,Ltd. 13817811078 sales@jingyan-chemical.com China 9963 60
Beijing Isomersyn Technology CO;LTD 010-82954736 13391601435 sales@isomersyn.com China 3294 57
Supplier Advantage
Nanjing Abix Biochemical Technology Co., Ltd. 60
Shandong Qianyuan Polymer Material Co. , Ltd. 58
J & K SCIENTIFIC LTD. 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 62
Alfa Aesar 84
TCI (Shanghai) Development Co., Ltd. 81
Energy Chemical 61
Beijing Ouhe Technology Co., Ltd 60
JinYan Chemicals(ShangHai) Co.,Ltd. 60
Beijing Isomersyn Technology CO;LTD 57

Related Questions

Ask a question
Q:What is 3-Methyl-2-buten-1-ol used for?Jack - Dec 4,2025
A:3-Methyl-2-buten-1-ol, also known as isopentenol, is a simple terpene compound primarily used as a chemical intermediate in organic synthesis. It is mainly used in the fragrance and flavor industry, favored for its fruity aroma, and is frequently added to high-end perfumes, shampoos, soaps, and food flavorings. Furthermore, it is a versatile laboratory synthesis reagent, particularly suitable for protecting carboxylic acids to form isopentenyl esters, and can serve as a starting material for the asymmetric total synthesis of complex natural products. It is also used in the production of agrochemicals and other specialty organic compounds.

View Latest Price from 3-Methyl-2-buten-1-ol manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
3-Methyl-2-buten-1-ol pictures 2026-08-25 3-Methyl-2-buten-1-ol
556-82-1
 $2.20-8.80 1kg 99%min 1000kg ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
3-Methyl-2-buten-1-ol pictures 2026-06-16 3-Methyl-2-buten-1-ol
556-82-1
 $29.00 98.00% 10g TargetMol Chemicals Inc.
3-Methyl-2-Buten-1-Ol pictures 2026-05-28 3-Methyl-2-Buten-1-Ol
556-82-1
 $10.50 1KG 99.9% 10 ton Hebei Chuanghai Biotechnology Co,.LTD

3-Methyl-2-buten-1-ol Spectrum

3-Methyl-2-buten-1-ol(556-82-1)MS3-Methyl-2-buten-1-ol(556-82-1)1HNMR3-Methyl-2-buten-1-ol(556-82-1)IR13-Methyl-2-buten-1-ol(556-82-1)Raman

556-82-1 (3-Methyl-2-buten-1-ol) Related Search:

Polybutene Phenethyl alcohol 3-Methyl butynol Tiglic aldehyde Ethyl acetate
Methyl acrylate Methylparaben Kresoxim-methyl Bensulfuron methyl 3-Methyl-1-butanethiol
Isovaleric acid Potassium 2-ethylhexanoate Thiophanate-methyl 2,2,6,6-Tetramethyl-4-piperidinol Maleic anhydride
Methyl cyclopentenolone Methyl thiophene-2-carboxylate 3-Methyl-3-buten-1-ol

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3-methyl-2-buten-1-o 3-Methyl-2-butenol 3-Methyl-2-butenyl alcohol dimethylallylalcohol gamma,gamma-Dimethylallyl alcohol gamma,gamma-dimethylallylalcohol Methyl-3-but-2-en-1-ol 3-Methyl-2-buten-1-ol,3,3-Dimethylallyl alcohol, Prenol 3-Methyl-2-D-ol Phenol(3-Methyl-2-Buten-1-ol) 3-Methyl-2-buten-1-ol, 99% 5GR gamma-Methylcrotyl Alcohol Prenol 3-METHYL-2-BUTEN-1-OL FOR SYNTHESIS 3-Methyl-2-buten-1-ol 3,3-Dimethylallyl alcohol 3-Methyl-2-buteN-1-ol PRENOL (3-METHYL-2-BUTEN-1-OL) 3,3-DIMETHYLALLYL ALCOHOL 1-HYDROXY-3-METHYL-2-BUTENE 3-METHYL-2-BUTENE-1-OL 3-METHYL-2-BUTEN-1-OL ISOBUTENYLCARBINOL ISOPENTENOL GAMMA-METHYLCROTYL ALCOHOL METHYL-2-BUTEN-1-OL, 3- 3,3-Dimethylallyl alcohol~Prenol VERTENOL PRENOL (VERTENOL) VERTENOL (PRENOL) VERTENOL (PRENOL) (3 METHYL 2 BUTEN-1-OL) 3-METHYL-2-BUTEN-1-OL 98+% 3-METHYL-2-BUTENE-L-OL 2-Isopentenyl-1-alcohol methyl-2-butenol,3-methyl-2-buten-1-ol 2-Buten-1-ol, 3-methyl- METHYL-3-BUTEN-1-OL, 3-(SG) 3-methyl-2-buten-1-ol，prenyl alcohol 2-Methyl-2-butene-4-ol γ-Methylcrotyl alcohol 3-Methyl-2-buten-l-ol 3-Methyl-2-buten-1-ol,99% 3-Methyl-2-buten-1-ol> 3-Methyl-2-buten-1-ol, 99%, for synthesis gamma-dimethylallylalcohol -2-buten-1-oL 3-metlyl-2-butenol 3-methyl-but-2-en-1-ol 3-methylbut-2-en-1-ol FEMA 3647 ISOPENTENYL ALCOHOL PRENOL PRENYL ALCOHOL 556-82-1 556-81-2 CH32CCHCH2OH ALCOHOL META - METH Organic Building Blocks Analytical Chromatography Product Catalog