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α-lipoic acid

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Identification
Molecular formula
C8H14O2S2
CAS number
62-46-4
IUPAC name
5-(dithiolan-3-yl)pentanoic acid
State
State

At room temperature, α-Lipoic acid is a crystalline solid. It is only slightly soluble in water but is more soluble in organic solvents.

Melting point (Celsius)
60.00
Melting point (Kelvin)
333.15
Boiling point (Celsius)
160.00
Boiling point (Kelvin)
433.15
General information
Molecular weight
206.33g/mol
Molar mass
206.3270g/mol
Density
1.1950g/cm3
Appearence

α-Lipoic acid appears as a pale yellow solid when in its pure form. It forms needle-shaped crystals and can have a distinctive sulfurous smell.

Comment on solubility

Solubility of 5-(dithiolan-3-yl)pentanoic acid

The solubility of 5-(dithiolan-3-yl)pentanoic acid (C8H14O2S2) can be quite intriguing due to its unique structure, which contains both hydrophilic and hydrophobic components. Understanding its solubility requires considering several factors:

  • Functional Groups: The presence of carboxylic acid and dithiolane groups affects solubility. Carboxylic acids are typically soluble in polar solvents, while the dithiolane ring may impart some steric hindrance.
  • Polarity: This compound is likely to demonstrate moderate polarity due to its combination of sulfur and carbon atoms, which can interact with polar solvents, such as water, to some extent.
  • Temperature Influence: Like many organic acids, solubility may increase with temperature, making higher temperatures favorable for achieving greater dissolution in solvent.
  • Solvent Compatibility: Aqueous solubility may be limited; however, it could be more soluble in organic solvents like ethanol or acetone, where the interactions between molecular structures are more favorable.

In conclusion, while precise solubility values may vary, it can be anticipated that 5-(dithiolan-3-yl)pentanoic acid exhibits a complex solubility profile influenced by its multifaceted structural characteristics. As always, experimentally determining solubility in different media is essential for practical applications.

Interesting facts

Interesting Facts about 5-(dithiolan-3-yl)pentanoic acid

5-(dithiolan-3-yl)pentanoic acid is a fascinating compound known for its unique structure and potential applications. Here are some engaging insights:

  • Unique Structure: The compound features a dithiolan ring, which is a five-membered ring containing two sulfur atoms. This distinct structural characteristic contributes to its intriguing properties and reactivity.
  • Biological Interest: Compounds with sulfur-containing moieties are often of significant interest in the field of medicinal chemistry due to their potential biological activity. This raises questions about the mechanisms through which 5-(dithiolan-3-yl)pentanoic acid may interact with biological systems.
  • Synthesis: Its synthesis typically involves the use of specific reagents and conditions that facilitate the formation of the dithiolan ring. This provides a great opportunity for students to explore organic synthesis techniques!
  • Applications: While detailed applications can vary, sulfur-containing compounds are frequently explored for their roles in pharmaceuticals, agrochemicals, and even materials science. This opens avenues for research and development.
  • Environmental Considerations: As with many organic compounds, understanding the environmental impact of 5-(dithiolan-3-yl)pentanoic acid is essential. Scientists are continually examining how such compounds degrade in various environments.

In summary, 5-(dithiolan-3-yl)pentanoic acid stands as a testament to the rich tapestry of organic chemistry. Its unique structure and potential applications make it a compound worth studying for both chemistry students and professionals alike. As the renowned chemist Linus Pauling once said, "The best way to have a good idea is to have lots of ideas." This could not be truer in the world of chemical research!

Synonyms
thioctic acid
dl-Thioctic acid
1077-28-7
alpha-Lipoic acid
5-(1,2-Dithiolan-3-yl)pentanoic acid
DL-alpha-Lipoic acid
1,2-dithiolane-3-pentanoic acid
Biletan
6,8-Thioctic acid
alpha Lipoic Acid
62-46-4
Thioctacid
DL-6,8-Thioctic acid
6-Thioctic acid
Lipothion
dl-Lipoic acid
Thioctsan
Tioctacid
Liposan
Rac-lipoate
5-(dithiolan-3-yl)pentanoic acid
alpha-Liponsaeure
1,2-Dithiolane-3-valeric acid
6,8-Dithiooctanoic acid
Thioctic acid dl-form
alpha-liponic acid
Thioktsaeure
Tioctidasi
espa-lipon
(RS)-Lipoic acid
DL-6-Thioctic acid
5-(1,2-Dithiolan-3-yl)valeric acid
Acetate-replacing factor
Protogen A
5-(Dithiolan-3-yl)valeric acid
6,8-Thiotic acid
Thioctansaeure
Alipure
Thiotacid
(+-)-Lipoic acid
Thiooctic acid
Thioktsaeure [German]
Thioctic acid [JAN]
Tioctic Acid
DL-1,2-Dithiolane 3-valeric acid
6-Thiotic acid
Pyruvate oxidation factor
Lip(S2)
DL-.alpha.-Lipoic acid
alpha-lipon 300
alpha-Liponsaeure [German]
(+/-)-1,2-Dithiolane-3-pentanoic acid
.alpha.-Lipoic acid
DL-1,2-Dithiolane-3-valeric acid
MFCD00005474
NSC 90788
thioctate
(+-)-Thioctic acid
Thioctsaeure
Thiocacid
Thioctan
liponic acid
NSC 628502
(+-)-1,2-Dithiolane-3-pentanoic acid
(RS)-alpha-Lipoic acid
a-lipoic acid
(+-)-alpha-lipoic acid
Acidum thiocticum
Tioctidasi acetate replacing factor
A-lipoicum acidum
DL-1,2-Dithiolan-3-valeriansaeure
EINECS 200-534-6
EINECS 214-071-2
lipoate
Lipoic acid, alpha
Lipoic acid, dl-
BRN 0081853
BRN 0122410
Thioctic acid [INN:BAN:JAN]
.alpha.-Liponic acid
CHEBI:16494
Thioctic acid (JAN)
HSDB 7818
Thioctic acid, dl-form
DL-1,2-Dithiolan-3-valeriansaeure [German]
C8H14O2S2
(.+-.)-Lipoic acid
NSC-90788
1,2-DITHIOLANE-3-VALERIC ACID, (+-)-
(.+/-.)-Lipoic acid
THIOCTIC ACID [MI]
(RS)-.alpha.-Lipoic acid
5-[3-(1,2-dithiolanyl)]pentanoic acid
THIOCTIC ACID [HSDB]
CHEMBL33864
1,2-Dithiolane-3-pentanoic acid, (+-)-
THIOCTIC ACID [WHO-DD]
DTXSID7025508
(.+-.)-.alpha.-Lipoic acid
73Y7P0K73Y
5-19-07-00237 (Beilstein Handbook Reference)
NSC90788
rac a-Lipoic Acid
THIOCTIC ACID DL-FORM [MI]
dl-1,2-Dithiolane-3-pentanoic acid
NSC-628502
NCGC00016032-06
1,2-Dithiolane-3-valeric acid, (.+/-.)-
1,2-Dithiolane-3-pentanoic acid, (.+/-.)-
DTXCID705508
biomolipon
duralipon
AlphaLipogamma
biomo lipon
espa lipon
Thiogamma oral
Alpha Lipogamma
Alpha-Lipogamma
Pleomix Alpha
Thioctacide T
Verla Lipon
AlphaLipon Stada
Alpha Lippon AL
Alpha Lipon Stada
Alpha-Lipon Stada
Liponsaureratiopharm
SMR000058198
Acid, alpha-Lipoic
CAS-1077-28-7
Liponsaure-ratiopharm
5-(3-(1,2-DITHIOLANYL))PENTANOIC ACID
alpha Liponsaure von ct
(R)-(+)-alpha-Lipoic acid;R-(+)-Thioctic acid
SR-01000737460
DL-6,8-DITHIOOCTANOIC ACID
UNII-73Y7P0K73Y
Alphalipoic-acid
D,L-Lipoic acid
DL-a-Lipoic acid
D,L-Thioctic acid
lipoic acid (LA)
alpha -Lipoic Acid
rac ?-Lipoic Acid
(RS)-thioctic acid
(R)-a-Lipoic acid
LIPOIC-ACID
rac alpha-Lipoic Acid
()-alpha-Lipoic acid
Spectrum_001618
(+/-)-Lipoic acid
Spectrum2_001605
Spectrum3_001188
Spectrum4_000217
Spectrum5_001298
(+/-)-a-Lipoic acid
cid_864
(.+-.)-Thioctic acid
Lipoic acid, alpha [NF]
bmse000542
Epitope ID:150922
R)-(+)-alpha-Lipoic acid
SCHEMBL51065
BSPBio_002835
KBioGR_000853
KBioSS_002098
THIOCTIC ACID [INCI]
MLS000069736
MLS001332379
MLS001332380
MLS002153365
DivK1c_000912
SPECTRUM1503941
SPBio_001609
THIOCTIC ACID [MART.]
BDBM10515
HMS502N14
HY-N0492R
KBio1_000912
KBio2_002098
KBio2_004666
KBio2_007234
KBio3_002335
A-LIPOICUM ACIDUM [HPUS]
ALPHA LIPOIC ACID [VANDF]
ALPHA-LIPOIC ACID [VANDF]
NINDS_000912
thioctic acid (alpha-lipoic acid)
GLXC-15365
HMS1922M22
HMS3649H08
HMS3885I16
Pharmakon1600-01503941
THIOCTIC ACID, (+/-)-
ALBB-030318
ALPHA LIPOIC ACID [USP-RS]
BCP13221
BCP14048
BCP18944
HY-N0492
MSK10003
Tox21_110285
Tox21_201808
Tox21_303092
AC7875
BBL013878
CCG-39063
NSC628502
NSC758651
s3996
STK801969
THIOCTIC ACID [EP MONOGRAPH]
()-1,2-Dithiolane-3-pentanoic acid
AKOS000121582
AKOS016339634
Tox21_110285_1
AB09328
CS-4370
FL00461
KS-1322
NSC-758651
SB49517
IDI1_000912
ALPHA LIPOIC ACID [USP IMPURITY]
NCGC00016032-02
NCGC00016032-03
NCGC00016032-04
NCGC00016032-05
NCGC00016032-07
NCGC00016032-08
NCGC00016032-09
NCGC00016032-11
NCGC00016032-14
NCGC00090872-01
NCGC00090872-02
NCGC00090872-03
NCGC00090872-04
NCGC00090872-05
NCGC00256970-01
NCGC00259357-01
(+/-)-alpha-Lipoic acid, >=98.0%
.ALPHA.-LIPOIC ACID, (+/-)-
1ST10003
AC-22673
BP-31070
NCI60_042014
R)-(+)-|A-Lipoic acid OOEthyAoEthAEa
R-(+)-1,2-Dithiolane-3-pentanoic acid
SY010902
SY070695
(R)-(+)-(c) paragraph sign-Lipoic acid
SBI-0051871.P002
1,2-Dithiolane-3-valeric acid, (+/-)-
5-(1,2-Dithiolan-3-yl)pentanoic acid #
DB-050522
1,2-Dithiolane-3-pentanoic acid, (+/-)-
1,2-Dithiolane-3-valeric acid, (.+-.)-
CS-0694773
L0058
NS00001602
1,2-Dithiolane-3-pentanoic acid, (.+-.)-
EN300-17612
C00725
D00086
AB00052393_09
Q312229
1,2-Dithiolane-3-pentanoic acid, (+-)- (9CI)
SR-01000737460-2
SR-01000737460-6
5-((3RS)-1,2-DITHIOLAN-3-YL)PENTANOIC ACID
BRD-A16347691-001-13-1
Z56969297
F2191-0208
.DELTA.-(3-(1,2-DITHIACYCLOPENTYL))PENTANOIC ACID
Thioctic acid, European Pharmacopoeia (EP) Reference Standard
(+/-)-alpha-Lipoic acid, BioReagent, cell culture tested, >=99%
(+/-)-alpha-Lipoic acid, synthetic, >=99% (titration), powder
1,2-Dithiolane-3-pentanoic acid; 5-(1,2-Dithiolan-3-yl)valeric acid
Alpha Lipoic Acid, United States Pharmacopeia (USP) Reference Standard
(R)-(+)-1,2-Dithiolane-3-pentanoic acid; R-(+)-Thioctic acid; R-(+)-alpha-Lipoic acid
AfAE'A centa' notA inverted exclamation markAfasA'A|AfAE'Adaggeratrade mark?-Lipoic Acid
Thioctic acid containing impurity B, European Pharmacopoeia (EP) Reference Standard
Thioctic acid for system suitability, European Pharmacopoeia (EP) Reference Standard
Thioctic Acid;1,2-Dithiolane-3-pentanoic acid;5-(1,2-Dithiolan-3-yl)valeric acid
(+/-)-Thioctic acid;(+/-)-1,2-Dithiolane-3-pentanoic acid;(+/-)-1,2-Dithiolane-3-valeric acid
200-534-6