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T0632

Sigma-Aldrich

Sodium thioglycolate

≥96.5% (iodometric)

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Synonym(s):
Mercaptoacetic acid sodium salt, Thioglycolic acid sodium salt
Linear Formula:
HSCH2COONa
CAS Number:
367-51-1
Molecular Weight:
114.10
Beilstein:
4569109
EC Number:
206-696-4
MDL number:
MFCD00043386
UNSPSC Code:
12352201
PubChem Substance ID:
24899901
NACRES:
NA.25

Quality Level

200

Assay

≥96.5% (iodometric)

form

powder

color

white to off-white

useful pH range

6.7 (20 °C, 100 g/L)

mp

>300 °C (lit.)

solubility

water: ~609.1 g/L at 20 °C (OECD Test Guideline 105)

storage temp.

−20°C

SMILES string

[Na+].[O-]C(=O)CS

InChI

1S/C2H4O2S.Na/c3-2(4)1-5;/h5H,1H2,(H,3,4);/q;+1/p-1

InChI key

GNBVPFITFYNRCN-UHFFFAOYSA-M

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Application

Sodium thioglycolate has been used:
  • as a growth supplement in enrichment media and to study its effect on Arcobacter
  • in influenza hemagglutinin formulation in order to reduce disulfide-mediated cross-linking and early potency loss
  • in electron microscopy

Biochem/physiol Actions

Sodium thioglycolate acts as reducing agent and is suitable for anaerobic and microaerophilic bacterial growth.
Sodium thioglycolate is a commonly used reagent for bacteriological research to maintain reducing conditions in media. Thioglycolate can also protect enzymes against inactivation by maintaining protein thiol groups in the reduced state. Thioglycolate medium is frequently used in inflammation research to elicit a neutrophil and macrophage response in vivo.

Caution

At room temperature, concentrations over 70% in water tend to form 1-2% thioglycolides per month which hydrolyze to the original free compound when made acidic 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.

Other Notes

To gain a comprehensive understanding of our extensive range of Monosaccharides for your research, we encourage you to visit our Carbohydrates Category page.

Pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

Signal Word

Danger

Hazard Statements

H290,H301,H312,H317

Hazard Classifications

Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Aquatic Chronic 3 - Met. Corr. 1 - Skin Sens. 1B

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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