2,3-BUTANEDIOL, [S-(R*,R*)]-

2,3-BUTANEDIOL, [S-(R,R)]- - Names and Identifiers

Name	(2S,3S)-(+)-2,3-Butanediol
Synonyms	L(+)-2,3-BUTANEDIOL (S,S)-2,3-BUTANEDIOL (3S)-butane-2,3-diol (2S,3S)-2,3-BUTANEDIOL (2S,3S)-butane-2,3-diol (S,S)-(+)-2,3-BUTANEDIOL (S-(R,R))-butane-2,3-diol (2S,3S)-(+)2,3-Butanediol (2S,3S)-(+)-2,3-BUTANEDIOL (2S,3S)-(+)-2,3-Butanediol 2,3-BUTANEDIOL, [S-(R,R)]- (S,S)-(+)-2,3-DIHYDROXYBUTANE
CAS	19132-06-0
EINECS	208-173-6
InChI	InChI=1/C4H10O2/c1-3(5)4(2)6/h3-6H,1-2H3/t3-,4?/m0/s1

2,3-BUTANEDIOL, [S-(R,R)]- - Physico-chemical Properties

Molecular Formula	C4H10O2
Molar Mass	90.12
Density	0.987 g/mL at 25 °C (lit.)
Melting Point	20°C
Boling Point	179-182 °C (lit.)
Specific Rotation(α)	13 º (c=neat)
Flash Point	185°F
Water Solubility	soluble
Solubility	Chloroform (Slightly), Methanol (Slightly)
Vapor Presure	0.26mmHg at 25°C
Appearance	Oily Liquid
Specific Gravity	0.987
Color	Slightly yellow
BRN	1718899
pKa	14.67±0.20(Predicted)
PH	9-10 (500g/l, H2O, 20℃)
Storage Condition	2-8°C
Stability	hygroscopic
Explosive Limit	3.1-11.4%(V)
Refractive Index	n20/D 1.433
Physical and Chemical Properties	Specific Rotation 13 ° (c = neat) boiling point 179-182°C(lit.) density 0.992g/mL at 20°C(lit.) refractive index n20/D 1.433 flash point 185 ° F storage conditions 2-8°C water solubility soluble

2,3-BUTANEDIOL, [S-(R,R)]- - Risk and Safety

Hazard Symbols	Xi - Irritant
Safety Description	24/25 - Avoid contact with skin and eyes.
UN IDs	NA 1993 / PGIII
WGK Germany	3
HS Code	29053995

2,3-BUTANEDIOL, [S-(R,R)]- - Reference

Reference

1. [IF=3.174] Shaoqu Xie et al."Salting-out of bio-based 2,3-butanediol from aqueous solutions."J Chem Technol Biot. 2017 Jan;92(1):122-132

2,3-BUTANEDIOL, [S-(R,R)]- - Reference Information

NIST chemical information	Information provided by: webbook.nist.gov (external link)
application	(2S,3S)-( )-2, 3-butanediol is an optically pure 2, 3-butanediol (2,3-bd). 2, 3-butanediol is an important o-diol with three stereoisomers: meso-2, 3-butanediol, (2R,3R)-2, 3-butanediol and (2S,3S)-2, 3-butanediol. As an important platform chemical, 2,3-bd can be used to produce valuable derivatives such as methyl ethyl ketone and 1,3-butadiene. Optically active isomers can be used as antifreeze. Optically pure 2,3-bd also serves as a good building block for asymmetric synthesis of chiral compounds containing two ortho stereocenters.
preparation	(1) take 6.06g of the solution containing ketone reductase obtained in the above step 1 and 20mL of phosphoric acid buffer salt solution with a concentration of 0.01mol/L into a clean 250mL single-mouth flask filled with magnets, and place the single-mouth flask in a water bath at 20 ℃, the solution in the single flask was stirred and mixed at a speed of 400rpm to obtain a mixed solution. (2) In the stirring process, keep the water bath temperature unchanged, and add 0.202g of nicotinamide adenine dinucleotide, 100mL of isopropanol and 20.2g of 2, 3-butanedione to the mixture to carry out a closed reaction to obtain the reaction solution. (3) The above reaction liquid is subjected to vacuum suction filtration to obtain a light yellow filtrate, and then the filtrate is placed at 45°C and 0.08MPa for rotary evaporation treatment, until almost no liquid flows out to obtain an extract. (4) Put the above extract in a water bath at 50 ℃, and use a rectification column and a condenser tube to raise the temperature to 70 ℃ for rectification separation to obtain (2S,3S)-( )-2, 3-butanediol.

Last Update：2024-04-09 15:16:48

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2,3-BUTANEDIOL, [S-(R*,R*)]-

2,3-BUTANEDIOL, [S-(R,R)]-

(2S,3S)-(+)-2,3-Butanediol

CAS: 19132-06-0

Molecular Formula: C4H10O2

2,3-BUTANEDIOL, [S-(R,R)]- - Names and Identifiers

2,3-BUTANEDIOL, [S-(R,R)]- - Physico-chemical Properties

2,3-BUTANEDIOL, [S-(R,R)]- - Risk and Safety

2,3-BUTANEDIOL, [S-(R,R)]- - Reference

2,3-BUTANEDIOL, [S-(R,R)]- - Reference Information

Supplier List

2,3-BUTANEDIOL, [S-(R*,R*)]- Request for Quotation

(2S,3S)-(+)-2,3-Butanediol

CAS: 19132-06-0

Molecular Formula: C4H10O2

2,3-BUTANEDIOL, [S-(R*,R*)]- - Names and Identifiers

2,3-BUTANEDIOL, [S-(R*,R*)]- - Physico-chemical Properties

2,3-BUTANEDIOL, [S-(R*,R*)]- - Risk and Safety

2,3-BUTANEDIOL, [S-(R*,R*)]- - Reference

2,3-BUTANEDIOL, [S-(R*,R*)]- - Reference Information

Supplier List

2,3-BUTANEDIOL, [S-(R,R)]-

2,3-BUTANEDIOL, [S-(R,R)]- - Names and Identifiers

2,3-BUTANEDIOL, [S-(R,R)]- - Physico-chemical Properties

2,3-BUTANEDIOL, [S-(R,R)]- - Risk and Safety

2,3-BUTANEDIOL, [S-(R,R)]- - Reference

2,3-BUTANEDIOL, [S-(R,R)]- - Reference Information