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ChemicalBook >> CAS DataBase List >>(S)-(-)-2-Methyl-1-butanol

(S)-(-)-2-Methyl-1-butanol

CAS No.
1565-80-6
Chemical Name:
(S)-(-)-2-Methyl-1-butanol
Synonyms
N-PENTANOL;AMYL ALCOHOL;FUSEL OIL;N-PENTYL ALCOHOL;AMYL ALCOHOL, N-;FEMA 2056;ALCOHOL C5;L-pentanol;(s)-1-butano;BUTYLCARBINOL
CBNumber:
CB7853148
Molecular Formula:
C5H12O
Molecular Weight:
88.15
MDL Number:
MFCD00064299
MOL File:
1565-80-6.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 02:43:14
Product description Number Pack Size Price
(S)-(?)-2-Methylbutanol ≥95.0% (sum of enantiomers, GC) 65980 100ml $106
(S)-(?)-2-Methylbutanol ≥95.0% (sum of enantiomers, GC) 65980 500ml $452
(S)-(-)-2-Methyl-1-butanol >98.0%(GC) M0170 25mL $88
S-(-)-2-Methyl-1-butanol Asreported 284829 10g $315
S-(-)-2-Methyl-1-butanol Asreported 284829 25g $452
More product size

(S)-(-)-2-Methyl-1-butanol Properties

Melting point -70 °C
alpha -5.8 º (neat 23 ºC)
Boiling point 136-138 °C(lit.)
Density 0.811 g/mL at 25 °C(lit.)
vapor density 3 (vs air)
vapor pressure 1 mm Hg ( 13.6 °C)
refractive index n20/D 1.409(lit.)
Flash point 120 °F
storage temp. 2-8°C
solubility soluble in Chloroform, Ethanol
form clear liquid
pka 15.24±0.10(Predicted)
color Colorless to Almost colorless
Odor ethereal fresh
optical activity [α]23/D 5.8°, neat
Water Solubility 36 g/L (30 ºC)
Merck 14,6030
BRN 1718809
Henry's Law Constant 3.9×10-1 mol/(m3Pa) at 25℃, Hilal et al. (2008)
Dielectric constant 15.8(20℃)
InChI 1S/C5H12O/c1-3-5(2)4-6/h5-6H,3-4H2,1-2H3/t5-/m0/s1
InChIKey QPRQEDXDYOZYLA-YFKPBYRVSA-N
SMILES CC[C@H](C)CO
LogP 1.223 (est)
CAS DataBase Reference 1565-80-6(CAS DataBase Reference)
FDA UNII II2QJB35IC
NIST Chemistry Reference 1-Butanol, 2-methyl-, (S)-(1565-80-6)
EPA Substance Registry System 1-Butanol, 2-methyl-, (2S)- (1565-80-6)
UNSPSC Code 12352001
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Flame (GHS02)Exclamation Mark (GHS07)
GHS02,GHS07
Signal word  Warning
Hazard statements  H226-H332-H335
Precautionary statements  P210-P304+P340+P312
target organs Respiratory system
PPE Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes  Xn
Risk Statements  10-20-37-66-2017/10/20
Safety Statements  46-24/25
RIDADR  UN 1105 3/PG 3
WGK Germany  1
RTECS  SB9800000
TSCA  TSCA listed
HazardClass  3
PackingGroup  III
HS Code  29051990
Storage Class 3 - Flammable liquids
Hazard Classifications Acute Tox. 4 Inhalation
Flam. Liq. 3
STOT SE 3
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
1 0

(S)-(-)-2-Methyl-1-butanol price More Price(40)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 65980 (S)-(?)-2-Methylbutanol ≥95.0% (sum of enantiomers, GC) 1565-80-6 100ml $106 2026-04-30 Buy
Sigma-Aldrich 65980 (S)-(?)-2-Methylbutanol ≥95.0% (sum of enantiomers, GC) 1565-80-6 500ml $452 2026-04-30 Buy
TCI Chemical M0170 (S)-(-)-2-Methyl-1-butanol >98.0%(GC) 1565-80-6 25mL $88 2026-04-30 Buy
Usbiological 284829 S-(-)-2-Methyl-1-butanol Asreported 1565-80-6 10g $315 2026-06-03 Buy
Usbiological 284829 S-(-)-2-Methyl-1-butanol Asreported 1565-80-6 25g $452 2026-06-03 Buy
Product number Packaging Price Buy
65980 100ml $106 Buy
65980 500ml $452 Buy
M0170 25mL $88 Buy
284829 10g $315 Buy
284829 25g $452 Buy

(S)-(-)-2-Methyl-1-butanol Chemical Properties,Uses,Production

Chemical Properties

clear colourless liquid

Uses

(S)-(-)-2-Methylbutanol can be used as a reactant to prepare:

  • Methylbutyl-2-(3-thienyl)acetate (MBTA) by esterification reaction with 3-thiophene acetic acid in the presence of an acid catalyst.
  • (2S)-2-Methyl-1-butanesulfenyl chloride by reacting with thioacetic acid using Mitsunobu reaction conditions.
  • (+)-Violapyrone C and (-)-myxalamide A.

Uses

(S)-()-2-Methylbutanol can be used to prepare:

  • (S)-()-2-Methyl-1-butyloxy carbonyl amino hexyl isocyanate (MBI), which is used to synthesize isocyanate copolymers.
  • Chiral alkoxynaphathoic acid derivatives having liquid crystalline properties.
  • 3,4-Bis[(S)-2-methylbutoxy]thiophene, a key intermediate for the synthesis of polythiophenes.

Definition

ChEBI: The (S)-enantiomer of 2-methylbutan-1-ol.

General Description

rest mainly 3-methyl-1-butanol

Purification Methods

Reflux the butanol with CaO, distil, reflux with magnesium and again fractionally distil it. A small sample of highly purified material is obtained by fractional crystallisation after conversion into a suitable ester such as the trinitrophthalate or the 3-nitrophthalate. The latter is converted to the cinchonine salt in acetone and recrystallised from CHCl3 by adding pentane. The salt is saponified, extracted with ether, and fractionally distilled. [Terry et al. J Chem Eng Data 5 403 1960, Beilstein 1 IV 1666.]

1449306-90-4
1565-80-6
Synthesis of (S)-(-)-2-Methyl-1-butanol from Ethanamine, N-[(3,5-dichlorophenyl)methylene]-2,2-diethoxy-
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View Lastest Price from (S)-(-)-2-Methyl-1-butanol manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
(S)-(-)-2-Methyl-1-butanol pictures 2025-12-01 (S)-(-)-2-Methyl-1-butanol
1565-80-6
1KG 98.0% 10000KGS Shaanxi Dideu New Materials Co. Ltd
(S)-(-)-2-Methyl-1-butanol pictures 2025-12-01 (S)-(-)-2-Methyl-1-butanol
1565-80-6
1kg 99% 10000KGS Shaanxi Dideu New Materials Co. Ltd
(S)-(-)-2-Methylbutanol >=95.0% (sum of enantiomers, GC) pictures 2021-07-02 (S)-(-)-2-Methylbutanol >=95.0% (sum of enantiomers, GC)
1565-80-6
$10.00-15.00 1KG 99%+ HPLC Zhuozhou Wenxi import and Export Co., Ltd
(S)-2-Methyl-1-butanol,99%e.e. (S)-(-)-2-Methylbutanol >=95.0% (suM of enantioMers, GC) (S)-(-)-2-Methylbutanol 99% (s)-1-butano (S)-2-methyl-butan-1-ol AMYL ALCOHOL, NORMAL ALCOHOL C5 1-PENTANOL ALCOHOL 1-PENTYL ALCOHOL FEMA 2056 BUTYLCARBINOL PRI-N-AMYL ALCOHOL (S)-(-)-2-Methyl-1-butanol (S)-(-)-2-Methylbutanol (S)-(-)-sec-Butylcarbinol 1-Butanol, 2-methyl-, (2S)- (S)-(-)-2-Methyl-1-butanol, 98+% (S)-(-)-2-Methyl-1-butanol, Active amyl alcohol Active amyl alcohol, Prim. active amyl alcohol (2S)-2-Methyl-1-butanol (2S)-2-Methylbutane-1-ol (S)-(-)-2-Methyl-1-butanol,99% D-2-METHYL-1-BUTANOL, ROT.-4.5 degrees 3-(4-((S)-()-2-Methyl-1-butanol active-Amyl Alcohol sec-Butylcarbinol N-BUTYLCARBINOL WATER STANDARD, AMYL ALCOHOL L-pentanol (S)-(-)-2-Methyl-1-butanol> AMYL ALCOHOL, N- AMYL ALCOHOL FUSEL OIL N-PENTYL ALCOHOL (S)-(?)-2-Methylbutanol N-PENTANOL 1565-80-6 71410 30899195 Monofunctional Alkanes 1-Alkanols Monofunctional & 偽,蠅-Bifunctional Alkanes Building Blocks Analytical Standards Analytical Chromatography Product Catalog Alcohols Alphabetic Asymmetric Synthesis C2 to C6 ALCOHOL Organic Building Blocks Chiral Resolution Reagents Chiral Resolving Reagents PA - PEN Oxygen Compounds Building Blocks for Liquid Crystals Chiral Building Blocks Chiral Compounds (Building Blocks for Liquid Crystals) Functional Materials
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