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236691

Sigma-Aldrich

(R)-(−)-2-Butanol

99%

Synonym(s):

(R)-(−)-sec-Butyl alcohol

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About This Item

Linear Formula:
C2H5CH(OH)CH3
CAS Number:
14898-79-4
Molecular Weight:
74.12
Beilstein:
1718764
EC Number:
238-967-8
MDL number:
MFCD00064280
UNSPSC Code:
12352001
PubChem Substance ID:
24854183
NACRES:
NA.22

vapor density

2.6 (vs air)

vapor pressure

12.5 mmHg ( 20 °C)

Assay

99%

form

liquid

optical activity

[α]20/D −13°, neat

autoignition temp.

761 °F

expl. lim.

9.8 %

refractive index

n20/D 1.397 (lit.)

bp

97-100 °C (lit.)

density

0.807 g/mL at 20 °C (lit.)

SMILES string

CC[C@@H](C)O

InChI

1S/C4H10O/c1-3-4(2)5/h4-5H,3H2,1-2H3/t4-/m1/s1

InChI key

BTANRVKWQNVYAZ-SCSAIBSYSA-N

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Application

(R)-(−)-2-Butanol can be used as a reagent in the synthesis of:
  • 1-[(S)-2-butyl]-3,5 diphenyl-1H-1,2,4 triazole from 3,5 diphenyl-1H-1,2,4 triazole by Mitsunobu reaction.
  • 2-butyl tosylate building block by reacting with toluenesulfonyl chloride.

(R)-(-)-2-Butanol has been used as a freeze drying medium during the long term cryopreservation of smooth muscle cells samples in a freezing container.

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Danger

Hazard Statements

H225,H319,H335,H336

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3

Target Organs

Central nervous system, Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

71.6 °F - closed cup

Flash Point(C)

22 °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’.

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Here we report on the gas-phase interactions between protonated enantiopure amino acids (L- and D-enantiomers of Met, Phe, and Trp) and chiral target gases [(R)- and (S)-2-butanol, and (S)-1-phenylethanol] in 0.1-10.0 eV low-energy collisions. Two major processes are seen to
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