Natural 2-Methyl-1-Butanol

Product Name:

Natural 2-Methyl-1-butanol

CAS:

137-32-6

MF:

C5H12O

MW:

88.15

EINECS:

205-289-9

Mol File:

137-32-6.mol

Melting point 

−70 °C(lit.)

alpha 

-0.1～+0.1°(20℃/D)(neat)

Boiling point 

130 °C mm Hg(lit.)

density 

0.819 g/mL at 20 °C(lit.)

vapor density 

3 (vs air)

vapor pressure 

3 mm Hg ( 20 °C)

refractive index 

n20/D 1.411

FEMA 

3998 | (+/-)-2-METHYL-1-BUTANOL

Fp 

110 °F

storage temp. 

Flammables area

solubility 

water: slightly soluble3.6g/a00g at 30°C

form 

Liquid

pka

15.24±0.10(Predicted)

color 

Clear colorless to very slightly yellow

PH

7 (H2O)

explosive limit

1.2-10.3%(V)

Water Solubility 

3.6 g/100 mL (30 ºC)

Merck 

14,6030

JECFA Number

1199

BRN 

1718810

CAS DataBase Reference

137-32-6(CAS DataBase Reference)

NIST Chemistry Reference

1-Butanol, 2-methyl-(137-32-6)

EPA Substance Registry System

2-Methyl-1-butanol (137-32-6)

Hazard Codes 

Xn

Risk Statements 

10-20-37-66

Safety Statements 

46-24/25

RIDADR 

UN 1105 3/PG 3

WGK Germany 

3

RTECS 

EL5250000

Autoignition Temperature

725 °F

TSCA 

Yes

HazardClass 

3

PackingGroup 

III

HS Code 

29051500

Hazardous Substances Data

137-32-6(Hazardous Substances Data)

Toxicity

LD50 orally in Rabbit: 4170 mg/kg LD50 dermal Rabbit 2900 mg/kg

Chemical Properties

clear colorless to very slighlty yellow liquid

Chemical Properties

Amyl alcohols (pentanols) have eight isomers. All are flammable, colorless liquids, except the isomer 2,2- dimethyl-1-propanol, which is a crystalline solid.

Chemical Properties

(+/–)2-Methyl-1-butanol has a cooked, roasted aroma with fruity or alcoholic undernotes.

Occurrence

Reportedly present in over 120 natural food products, including apple, apricot, banana, orange, bilberry, black currant, cranberry, papaya, strawberry, tomato and alcoholic beverages

Uses

2-Methyl-1-butanol is a whiskey-scented amyl alcohol that is naturally present in all fruits wine and beer. 2-Methyl-1-butanol is commercially used as a solvent in paints and oils and as flavorant in many processed foods. 2-Methyl-1-butanol has a characteristic redolence, which is thought to account for its active properties as an attractant for hornets and certain wasps, such as yellowjackets, in traps. As a biochemical active ingredient, it has a non-toxic mode of action – targeted pests are killed through physical entrapment.

Uses

Solvent, organic synthesis (introduction of active amyl group), lubricants, plasticizers, additives for oils and paints.

Shipping

UN2811 Pentanols, Hazard Class: 3; Labels: 3- Flammable liquid. UN1987 Alcohols, n.o.s., Hazard Class: 3; Labels: 3-Flammable liquid.