1,4-Butanediol

Is butanediol soluble in water?

1,4-Butanediol

Names
Melting point 20.1 °C (68.2 °F; 293.2 K)
Boiling point 235 °C (455 °F; 508 K)
Solubility in water Miscible
Solubility in ethanol Soluble

What is the functional group in 2/3-butanediol?

alcohol group
2,3-Butanediol belongs to the class of organic compounds known as 1,2-diols. These are polyols containing an alcohol group at two adjacent positions.

Is butane 2/3 Dione soluble in water?

Diacetyl (IUPAC systematic name: butanedione or butane-2,3-dione) is an organic compound with the chemical formula (CH3CO)2….Diacetyl.

Names
Melting point −2 to −4 °C (28 to 25 °F; 271 to 269 K)
Boiling point 88 °C (190 °F; 361 K)
Solubility in water 200 g/L (20 °C)
Hazards

How many stereoisomers does 2/3-butanediol have?

three stereoisomers
The volatile compound 2,3-butanediol, which is produced by certain strains of root-associated bacteria, consists of three stereoisomers, namely, two enantiomers (2R,3R- and 2S,3S-butanediol) and one meso compound (2R,3S-butanediol).

Is butanediol polar or nonpolar?

1,4-Butanediol, colloquially known as BD or BDO, is a primary alcohol, and an organic compound, with the formula HOCH2CH2CH2CH2OH. It is a colorless viscous liquid. It is one of four stable isomers of butanediol. A polar solvent that is capable of acting as a hydron (proton) donor.

What is the 2/3 butanediol pathway?

The biosynthetic pathway of 2,3-butanediol (2,3-BDO) production from pyruvate under anaerobic conditions includes three enzymes: acetolactate synthase (ALS), acetolactate decarboxylase (ALDC), and acetoin reductase (AR).

Which of the following pairs of 2/3 butanediol is enantiomeric?

Isomerism. Of the three stereoisomers, two are enantiomers (levo- and dextro-2,3-butanediol) and one is a meso compound. The enantiomeric pair have (2R, 3R) and (2S, 3S) configurations at carbons 2 and 3, while the meso compound has configuration (2R, 3S) or, equivalently, (2S, 3R).

Is 2,3-butanedione ketone or aldehyde?

Uses. 2,3-Butanedione is a flavoring agent that is a clear yellow to yellowish green liquid with a strong pungent odor. It is also known as 2,3-butanedione and is chemically synthesized from methyl ethyl ketone.

Where is diacetyl banned?

EU
The European Union (EU) banned diacetyl in e-cigarette products under the EU Tobacco Products Directive (TPD) of 2016. They determined that the level of diacetyl in e-cigarettes wasn’t safe for consumers within its jurisdiction.

Which of the following pairs of 2/3-butanediol is enantiomeric?

Does Meso 2/3-butanediol have an internal mirror plane?

Figure 6.14 A 180° internal rotation of (2R,3S)-2,3-butanediol gives an eclipsed conformation that is achiral because it has a plane of symmetry (internal mirror plane). The existence of an achiral conformation (even an un- stable one) shows that (2R,3S)-2,3-butanediol is a meso compound.

What is 2 2 3 butanediol?

2,3-Butanediol is the organic compound with the formula (CH 3 CHOH) 2. It is classified as a vic -diol ( glycol ). It exists as three stereoisomers, a chiral pair and the meso isomer. All are colorless liquids. Applications include precursors to various plastics and pesticides.

What is the standard state of butanediol at different temperatures?

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).?) 2,3-Butanediol is the organic compound with the formula (CH 3 CHOH) 2.

What is the molecular weight of 262 butane-2-3-butanediol?

2,3-Butanediol PubChem CID 262 Synonyms 2,3-butanediol 513-85-9 Butane-2,3-diol Molecular Weight 90.12 Date s Modify 2021-07-10 Create 2005-03-26

What is the role of butanediol in the pharmaceutical industry?

Derivatives of 2,3-butanediol are important as intermediates in the pharmaceutical industry. 2,3-Butanediols have some interest as humectants and in the synthesis of polymers and plasticizers. HUMAN STUDIES: For erythrocytes a solution of 30% 2,3-butanediol showed relatively low toxicity.