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T3758

Sigma-Aldrich

Thioglycolic acid

Thioglycolic acid

98%

Synonym(s):

Mercaptoacetic acid

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$61.20
500 ML
$104.00

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100 ML
$61.20
500 ML
$104.00

About This Item

Linear Formula:
HSCH2COOH
CAS Number:
Molecular Weight:
92.12
Beilstein/REAXYS Number:
506166
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.21

$61.20


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vapor density

3.2 (vs air)

Quality Level

vapor pressure

0.4 mmHg ( 25 °C)

assay

98%

form

liquid

autoignition temp.

662 °F

color

clear colorless

refractive index

n20/D 1.505 (lit.)

bp

96 °C/5 mmHg (lit.)

mp

−16 °C (lit.)

solubility

water: soluble 1.000 g/L at 20 °C

density

1.326 g/mL at 20 °C (lit.)

functional group

carboxylic acid
thiol

shipped in

wet ice

storage temp.

2-8°C

SMILES string

OC(=O)CS

InChI

1S/C2H4O2S/c3-2(4)1-5/h5H,1H2,(H,3,4)

Inchi Key

CWERGRDVMFNCDR-UHFFFAOYSA-N

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General description

Thioglycolic acid is a mercaptocarboxylic acid that serves as a stabilizer, reducing agent, and ligand.[1][2]

Application

Thioglycolic acid may be used as a sulfur source for the synthesis of metal sulfide nanostructures via hydrothermal process.[3][4][5]

Caution

At room temperature, concentrations over approximately 70% in water tend to form 1-2% thioglycolides per month, which hydrolyze to the original free compound when made acid or alkaline. The 70% solution oxidizes in air, but is stable at room temperature when tightly closed. Thioglycolate salts may also lose purity on storage. The exclusion of air does not materially improve stability.

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Skull and crossbonesCorrosion

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Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1B - Skin Sens. 1B

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk_germany

WGK 3

flash_point_f

266.0 °F - closed cup

flash_point_c

130 °C - closed cup

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter


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Reduction of [Cp2? Mo2O5] by thioglycolic acid in an aqueous medium: Synthesis and structure of [{Cp* Mo (?-SCH2COO)} 2 (?-S)]
Demirhan F, et al.
Journal of Organometallic Chemistry, 691, 648-654 (2006)
Controllable synthesis of wurtzite ZnS nanorods through simple hydrothermal method in the presence of thioglycolic acid.
Salavati-Niasari M, et al.
J. Alloy Compounds, 475(1-2), 782-788 (2009)
Shape selective hydrothermal synthesis of tin sulfide nanoflowers based on nanosheets in the presence of thioglycolic acid.
Salavati-Niasari M & Davar F.
J. Alloy Compounds, 492(1-2), 570-575 (2010)
The influence of carboxyl groups on the photoluminescence of mercaptocarboxylic acid-stabilized CdTe nanoparticles
Zhang H, et al.
The Journal of Physical Chemistry B, 107, 8-13 (2003)
Controllable synthesis of nanocrystalline CdS with different morphologies by hydrothermal process in the presence of thioglycolic acid.
Salavati-Niasari M, et al.
Chemical Engineering Journal, 145(2), 346-350 (2008)

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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