 Home > Encyclopedia > 3-Methyl-2-butanol

3-Methyl-2-butanol

3-Methyl-2-butanol structure

CAS No:
598-75-4
Formula:
C5H12O
Chemical Name:
3-Methyl-2-butanol
Synonyms:
2-Butanol,3-methyl-;3-Methyl-2-butanol;sec-Isoamyl alcohol;Methylisopropylcarbinol;1,2-Dimethylpropanol;2-Methyl-3-butanol;1,2-Dimethyl-1-propanol;(±)-3-Methyl-2-butanol;(±)-2-Methyl-3-Butanol;NSC 71162;1,2-Dimethylpropyl alcohol;70116-68-6
Categories:
Pharmaceutical Intermediates > Bulk Drug Intermediates

Description

CLEAR COLOURLESS LIQUID Amyl alcohols (pentanols) have eight isomers. All are flammable, colorless liquids, except the isomer 2,2- dimethyl-1-propanol, which is a crystalline solid. 3-Methyl-2-butanol has a fruity, fresh odor.

3-methyl-2-butanol is a secondary alcohol that is 2-butanol carrying an additional methyl substituent at position 3. It has a role as a polar solvent and a plant metabolite. It derives from a hydride of an isopentane.

3-Methyl-2-butanol Basic Attributes

Molecular Weight：

88.15

Exact Mass：

88.15

BRN：

1718800

EC Number：

209-950-2

NSC Number：

71162

HScode：

29051490

Characteristics

PSA：

20.2

XLogP3：

1.25

Appearance：

Clear colorless Liquid

Density：

0.810 g/cm³ @ Temp: 25 °C

Melting Point：

92.0-92.5 °C

Boiling Point：

112 °C

Flash Point：

80 °F

Refractive Index：

1.403

Water Solubility：

Miscible in Ether, Alcohols. Slightly soluble in water.(2.8g/100mL, 30°C)

Storage Conditions：

Flammables area

Vapor Pressure：

Vapour pressure, kPa at 20°C: 0.55

Vapor Density：

Relative vapour density (air = 1): 3.0

Explosive limit：

1.2-10.5%(V)

Safety Information

Packing level：

III

Hazard category：

Transport codes：

UN 1105 3/PG 3

wgk germany：

hazard class code：

10-20-37-66

safety instructions：

Marks：

Storage features：

Fireproof. Separated from strong oxidants.

Precautionary statement(s)：

P261

Hazard Statements：

H226-H332-H335

GHS Classification：

|Warning|H226 (12.58%): Flammable liquid and vapor [Warning Flammable liquids]|P210, P233, P240, P241, P242, P243, P261, P271, P280, P303+P361+P353, P304+P312, P304+P340, P312, P370+P378, P403+P233, P403+P235, P405, and P501|Aggregated GHS information provided by 1471 companies from 11 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

3-Methyl-2-butanol Use and Manufacturing

Methods of Manufacturing

A solution of 600g 2-bromopropane and 300ml of ether was added dropwise to a mixture of 250ml of ether and 146g of magnesium. The reaction was cooled to -5°C, and a solution of 200g of acetaldehyde and 250ml of ether was slowly added. The reaction mixture was poured into 2 kg of crushed ice to decompose the magnesium salt, the excess magnesium was removed by decantation, and the alkaline magnesium halide was dissolved with 15% sulfuric acid. Separate the ether layer, fractionate and collect the 110-111.5°C fractions to obtain 210-215g of 3-methyl-2-butanol with a yield of 53-54%.

Uses

Solvent.

Manufacturing Info：

2-Butanol, 3-methyl-: ACTIVE

Use Classification：

Food additives -> Flavoring Agents|Flavoring Agents -> JECFA Flavorings Index

Food Additive Classes：

Flavoring Agents

Computed Properties

Molecular Weight:88.15
XLogP3:1.3
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:1
Rotatable Bond Count:1
Exact Mass:88.088815002
Monoisotopic Mass:88.088815002
Topological Polar Surface Area:20.2
Heavy Atom Count:6
Complexity:32.9
Undefined Atom Stereocenter Count:1
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Recommended Suppliers of 3-Methyl-2-butanol

NANTONG REFORM PETRO-CHEMICAL CO.,LTD Contact Supplier

CN
4 YRS

Business licensed Certified factory

Manufactory Supplier of Flavors & Fragrances,Catalyst & Auxiliary,Intermediates,Dyes & Pigments,Inorganic Chemistry,petro chemicals,Surfactant,Food Additives,Water Treatment Chemicals

3-Methyl-2-butanol

CAS No.: 598-75-4

Grade: Industrial Grade

Content: 99%

Inquiry