MilliporeSigma
All Photos(1)

W205702

Sigma-Aldrich

Isoamyl alcohol

≥98%, FG

Sign Into View Organizational & Contract Pricing

Select a Size

Synonym(s):
3-Methyl-1-butanol, Isoamyl alcohol, Isopentyl alcohol
Linear Formula:
(CH3)2CHCH2CH2OH
CAS Number:
Molecular Weight:
88.15
FEMA Number:
2057
Beilstein:
1718835
EC Number:
Council of Europe no.:
51
MDL number:
PubChem Substance ID:
Flavis number:
2.003
NACRES:
NA.21

biological source

synthetic

Quality Level

grade

FG
Halal
Kosher

Agency

meets purity specifications of JECFA

reg. compliance

EU Regulation 1334/2008 & 178/2002
FDA 21 CFR 117
FDA 21 CFR 172.515

vapor density

3 (vs air)

vapor pressure

2 mmHg ( 20 °C)

Assay

≥98%

form

liquid

autoignition temp.

644 °F

expl. lim.

1.2-9 %, 100 °F

refractive index

n20/D 1.406 (lit.)

pH

5.6 (20 °C, 25 g/L)

bp

130 °C (lit.)

mp

−117 °C (lit.)

density

0.809 g/mL at 25 °C (lit.)

application(s)

flavors and fragrances

Documentation

see Safety & Documentation for available documents

food allergen

no known allergens

Organoleptic

banana; oily; fruity; whiskey

SMILES string

CC(C)CCO

InChI

1S/C5H12O/c1-5(2)3-4-6/h5-6H,3-4H2,1-2H3

InChI key

PHTQWCKDNZKARW-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
W205710AX1440PHR2337
Isoamyl alcohol ≥98%, FG

Sigma-Aldrich

W205702

Isoamyl alcohol

Isoamyl alcohol natural, ≥98%, FG

Sigma-Aldrich

W205710

Isoamyl alcohol

Isoamyl Alcohol Meets ACS Specifications GR ACS

Supelco

AX1440

Isoamyl Alcohol

3-Methyl-1-butanol certified reference material, pharmaceutical secondary standard

Supelco

PHR2337

3-Methyl-1-butanol

grade

FG, Halal, Kosher

grade

FG, Fragrance grade, Halal, Kosher, natural

grade

-

grade

certified reference material, pharmaceutical secondary standard

agency

meets purity specifications of JECFA

agency

follows IFRA guidelines, meets purity specifications of JECFA

agency

-

agency

traceable to USP 1424153

vapor density

3 (vs air)

vapor density

3 (vs air)

vapor density

3 (vs air)

vapor density

3 (vs air)

assay

≥98%

assay

≥98%

assay

≥98.5% (corrected for water content, GC)

assay

-

refractive index

n20/D 1.406 (lit.)

refractive index

n20/D 1.406 (lit.)

refractive index

n20/D 1.406 (lit.)

refractive index

n20/D 1.406 (lit.)

General description

Isoamyl alcohol is a cyanobacterial volatile organic compound that has been identified as one of the main aroma/flavor constituents in banana fruit, karanda fruits and in whey spirit.

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Eye Dam. 1 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

110.3 °F - closed cup

Flash Point(C)

43.5 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 8

1 of 8

Sulfuric acid 99.999%

Sigma-Aldrich

339741

Sulfuric acid

3-Methylbutanol BioReagent, for molecular biology, ≥98.5%

Sigma-Aldrich

I9392

3-Methylbutanol

3-Methyl-1-butanol ACS reagent, ≥98.5%

Sigma-Aldrich

320021

3-Methyl-1-butanol

3-Methyl-1-butanol anhydrous, ≥99%

Sigma-Aldrich

309435

3-Methyl-1-butanol

Acetic acid glacial, ReagentPlus®, ≥99%

Sigma-Aldrich

A6283

Acetic acid

3-Methylbutanol BioUltra, for molecular biology, ≥99.0% (GC)

Sigma-Aldrich

59085

3-Methylbutanol

Amyl alcohol ≥99%, FG

Sigma-Aldrich

W205605

Amyl alcohol

3-Methyl-1-butanol reagent grade, 98%

Sigma-Aldrich

M32658

3-Methyl-1-butanol

Characterisation of volatile compounds in an alcoholic beverage produced by whey fermentation.
Dragone G, et al.
Food Chemistry, 112(4), 929-935 (2009)
Analytical aspects of cyanobacterial volatile organic compounds for investigation of their production behavior.
Fujise D, et al
Journal of Chromatography A, 1217(39), 6122-6125 (2010)
Volatile flavor constituents of Karanda (Carissa carandas L.) fruit.
Pino JA, et al.
J. Essent. Oil Res., 16(5), 432-434 (2004)
L-leucine as a precursor of isoamyl alcohol and isoamyl acetate, volatile aroma constituents of banana fruit discs
Myers MJ, et al.
Phytochemistry, 9(8), 1693-1700 (1970)
Kazushi Yoshida et al.
Nature communications, 3, 739-739 (2012-03-15)
The same odorant can induce attractive or repulsive responses depending on its concentration in various animals including humans. However, little is understood about the neuronal basis of this behavioural phenomenon. Here we show that Caenorhabditis elegans avoids high concentrations of

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service