(S)-(+)-2-Butanol

Synonym(s):(S)-(+)-sec-Butyl alcohol

Colorless to light yellow liqui

(S)-(+)-2-Butanol can be used:

To synthesize chiral asymmetric perylene diimides (PDI) that spontaneously self-assemble into one-handed nanotubes that are photoconductive or fluorescent in nature.
To synthesize bulky chiral vinyl monomers that can be radically polymerized to helical polymers with an excess screw sense.
As chiral solvent to study excited state photo transfer of the photoacid, 5,8-dicyano-2-naphthol (DCN2) in chiral environment.

ChEBI: (2S)-butan-2-ol is a butan-2-ol. It is an enantiomer of a (2R)-butan-2-ol.

Melting point:	-114 °C
Boiling point:	99-100 °C (lit.)
alpha	13 º (neat)
Density	0.803 g/mL at 25 °C (lit.)
vapor density	2.6 (vs air)
vapor pressure	12.5 mm Hg ( 20 °C)
refractive index	n20/D 1.397(lit.)
Flash point:	80 °F
storage temp.	Sealed in dry,Room Temperature
form	Liquid
pka	15.31±0.20(Predicted)
color	Clear colorless
Odor	at 1.00 % in dipropylene glycol. oily wine
optical activity	[α]20/D +13°, neat
explosive limit	9.8%
Water Solubility	125 g/L (20 ºC)
Merck	14,1541
BRN	1718763
Stability:	Stable. Incompatible with acids, acid chlorides, acid anhydrides, oxidizing agents, halogens.
CAS DataBase Reference	4221-99-2(CAS DataBase Reference)
NIST Chemistry Reference	2-Butanol, (S)-(+)-(4221-99-2)

Signal word	Warning
Pictogram(s)	Flame Flammables GHS02 Exclamation Mark Irritant GHS07
GHS Hazard Statements	H226:Flammable liquids H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation H336:Specific target organ toxicity,single exposure; Narcotic effects
Precautionary Statement Codes	P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P242:Use only non-sparking tools. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.