Thioctic acid
- Formula: C8H14O2S2
- Molecular weight: 206.326
- IUPAC Standard InChI: InChI=1S/C8H14O2S2/c9-8(10)4-2-1-3-7-5-6-11-12-7/h7H,1-6H2,(H,9,10)
- IUPAC Standard InChIKey: AGBQKNBQESQNJD-UHFFFAOYSA-N
- CAS Registry Number: 1077-28-7
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: dl-Thioctic acid; dl-α-Lipoic acid; dl-6,8-Thioctic acid; 1,2-Dithiolane-3-pentanoic acid, (.+/-.)-; DL-6-Thioctic acid; 1,2-Dithiolane-3-valeric acid, (.+/-.)-; Thiooctic acid; DL-1,2-Dithiolane 3-valeric acid; DL-1,2-Dithiolan-3-valeriansaeure; dl-1,2-Dithiolane-3-pentanoic acid; Thioctic acid, dl-form; NSC 628502; NSC 90788; dl-Lipoic acid; 5-(1,2-Dithiolan-3-yl)valeric acid; (.+/-.)-Lipoic acid; 1,2-Dithiolane-3-pentanoic acid; α-Lipoic acid; 5-(dithiolan-3-yl)valeric acid
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Reaction thermochemistry data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
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Individual Reactions
+
= 2
+
By formula: C8H16O2S2 + I2 = 2HI + C8H14O2S2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -26.20 | kcal/mol | Cm | Sunner, 1955 | liquid phase; solvent: Ethanol/water(90/10) |
IR Spectrum
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Gas Phase Spectrum
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Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
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| Owner | SRD/NIST Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
|---|---|
| Origin | EPA-IR VAPOR PHASE LIBRARY |
| State | gas |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Sunner, 1955
Sunner, S.,
Strain in 6,8-thioctic acid,
Nature (London), 1955, 176, 217. [all data]
Notes
Go To: Top, Reaction thermochemistry data, IR Spectrum, References
- Symbols used in this document:
ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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