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Lactic Acid

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Identification
Molecular formula
C9H10O4
CAS number
79-33-4
IUPAC name
2-hydroxy-3-(4-hydroxyphenyl)propanoic acid
State
State

At room temperature, lactic acid exists as a colorless to yellowish liquid. It is hygroscopic and mixes well with water.

Melting point (Celsius)
53.00
Melting point (Kelvin)
326.15
Boiling point (Celsius)
122.00
Boiling point (Kelvin)
395.15
General information
Molecular weight
180.16g/mol
Molar mass
180.1570g/mol
Density
1.2090g/cm3
Appearence

Lactic acid is a colorless or yellowish, syrupy liquid.

Comment on solubility

Solubility of 2-hydroxy-3-(4-hydroxyphenyl)propanoic acid

2-hydroxy-3-(4-hydroxyphenyl)propanoic acid, commonly known as a derivative of phenolic acid, exhibits noteworthy solubility characteristics that are influenced by its functional groups and molecular structure. To better understand its solubility, consider the following key aspects:

  • Water Solubility: This compound is generally soluble in water due to the presence of hydroxyl (-OH) groups which can engage in hydrogen bonding with water molecules.
  • Organic Solvents: It is also soluble in a variety of organic solvents, such as ethanol and methanol, making it versatile for different chemical applications.
  • pH Dependency: The solubility can be affected by the pH of the solution; acidic conditions may enhance solubility due to increased protonation of functional groups.
  • Temperature Influence: Higher temperatures might also improve solubility, as many compounds dissolve better when the temperature increases.

Furthermore, it is important to note that its solubility can be enhanced when forming salts with bases, which could further facilitate its use in various chemical reactions and applications. Overall, understanding the solubility of 2-hydroxy-3-(4-hydroxyphenyl)propanoic acid is crucial for its practical utilization in both laboratory and industrial settings.

Interesting facts

Interesting Facts about 2-hydroxy-3-(4-hydroxyphenyl)propanoic Acid

2-hydroxy-3-(4-hydroxyphenyl)propanoic acid, more commonly known as caffeic acid, is a fascinating compound with several notable features. This compound is classified as a phenolic acid and is widely recognized for its presence in various plants and foods, making it a common subject of study in both the fields of chemistry and nutrition.

Sources and Occurrence

Caffeic acid can be found in a variety of natural sources, including:

  • Coffee beans
  • Fruits such as apples and pears
  • Vegetables like carrots and potatoes
  • Various herbs, including sage and thyme

Biological Significance

This compound has gained popularity due to its potential health benefits, which include:

  • Antioxidant Properties: Caffeic acid is known to scavenge free radicals, thereby preventing cellular damage.
  • Anti-inflammatory Effects: It may help reduce inflammation, making it valuable in managing chronic diseases.
  • Cardiovascular Health: Some studies suggest it can contribute to heart health by improving blood circulation.

Applications in Research

In the scientific community, caffeic acid has become a subject of extensive research due to its diverse applications:

  • Natural product chemistry
  • Phytochemistry
  • Food science for its flavor and preservative qualities

Moreover, caffeic acid plays a crucial role in other compounds, functioning as a precursor to certain esters and derivatives used in pharmaceuticals and nutraceuticals. Its structural characteristics allow it to play a role in enzyme inhibition, making it an interesting candidate for drug development.

As a molecule, caffeic acid epitomizes the intersection of natural products and human health, bridging the gap between traditional diets and modern scientific inquiry. Its ongoing research highlights the importance of naturally occurring compounds in advancing our understanding of health and disease.

Synonyms
2-Hydroxy-3-(4-hydroxyphenyl)propanoic acid
306-23-0
3-(4-Hydroxyphenyl)lactic acid
Hydroxyphenyllactic acid
HPLA
dl-p-Hydroxyphenyllactic acid
4-Hydroxyphenyllactic acid
Lactic acid, (p-hydroxyphenyl)-
DL-4-Hydroxyphenyllactic Acid
2-Hydroxy-3-(p-hydroxyphenyl)propionic acid
beta-(p-Hydroxyphenyl)lactic acid
p-Hydroxyphenyl lactic acid
beta-(4-Hydroxyphenyl)lactic acid
Lactic acid, 3-(p-hydroxyphenyl)-
4-Hydroxyphenyllactate
6482-98-0
Hydroxyphenyllactate
NSC 111175
3-(4-Hydroxyphenyl)-2-hydroxypropanoic acid
DL-3-(4-Hydroxyphenyl)lactic acid
MFCD00010514
(p-Hydroxyphenyl)lactic acid
EP7PS9S776
CHEBI:17385
.beta.-(p-Hydroxyphenyl)lactic acid
.beta.-(4-Hydroxyphenyl)lactic acid
NSC-111175
.alpha.,4-Dihydroxybenzenepropanoic acid
Benzenepropanoic acid, .alpha.,4-dihydroxy-
b-(4-hydroxyphenyl)lactic acid
alpha,4-Dihydroxybenzenepropanoic acid
EN1
4-Hydroxy-Phenyllactate
Benzenepropanoic acid, alpha,4-dihydroxy-
DL-p-Hydroxyphenyllactate
p-hydroxylphenyllactic acid
b-(p-Hydroxyphenyl)lactate
b-(4-Hydroxyphenyl)lactate
UNII-EP7PS9S776
3-(p-hydroxyphenyl)-Lactate
beta-(p-Hydroxyphenyl)lactate
a,4-Dihydroxybenzenepropanoate
beta-(4-Hydroxyphenyl)lactate
SCHEMBL235131
b-(p-Hydroxyphenyl)lactic acid
DL-p-hydroxyphenyl lactic acid
WLN: QVY1 & OR DQ
b-(p-Hydroxyphenyl)-DL-lactate
CHEMBL1162489
DL-3-(4-Hydroxyphenyl)lactate
JVGVDSSUAVXRDY-UHFFFAOYSA-
3-(4-Hydroxyphenyl)-DL-lactate
3-(p-hydroxyphenyl)-Lactic acid
DTXSID10861861
a,4-Dihydroxybenzenepropanoic acid
(RS)-3-(4-Hydroxyphenyl)lactate
beta-(p-Hydroxyphenyl)-DL-lactate
Hydroxyphenyllactic acid (Standard)
b-(p-Hydroxyphenyl)-DL-lactic acid
Lactic acid, 3-(4-hydroxyphenyl)-
NSC111175
3-(4-Hydroxyphenyl)-DL-lactic acid
AKOS000283821
AKOS016842903
BETA-P-HYDROXYPHENYLLACTIC ACID
(RS)-3-(4-Hydroxyphenyl)lactic acid
beta-(p-Hydroxyphenyl)-DL-lactic acid
HY-113219R
SB45742
2-Hydroxy-3-(p-hydroxyphenyl)propionate
P-HYDROXYPHENYL LACTIC ACID, DL-
AS-65803
SY051842
DB-009177
DB-011768
HY-113219
2-hydroxy-3-(4-hydroxyphenyl)propionic acid
CS-0059336
H0542
NS00014787
3-(4'-Hydroxyphenyl) 2-hydroxypropanoic acid
P-HYDROXYPHENYL LACTIC ACID, (+/-)-
2-hydroxy-3-(4-hydroxy-phenyl)-propanoic acid
2-Hydroxy-3-(4-hydroxy-phenyl)-propionic acid
C03672
D90895
DL-p-Hydroxyphenyllactic acid, >=97% (HPLC)
EN300-319194
.BETA.-(P-HYDROXYPHENYL)-DL-LACTIC ACID
Q26385943
5C4B69A3-BB04-4B3B-B8E5-F443080B72AD
InChI=1/C9H10O4/c10-7-3-1-6(2-4-7)5-8(11)9(12)13/h1-4,8,10-11H,5H2,(H,12,13)