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T0699

Sigma-Aldrich

Trichloroacetic acid solution

6.1 N

Synonym(s):

TCA

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About This Item

Linear Formula:
Cl3CCOOH
CAS Number:
76-03-9
Molecular Weight:
163.39
Beilstein:
970119
MDL number:
MFCD00004177
UNSPSC Code:
12352106
PubChem Substance ID:
57654645
NACRES:
NA.26

form

liquid

Quality Level

200

concentration

6.1 N
~100 % (w/v)

SMILES string

OC(=O)C(Cl)(Cl)Cl

InChI

1S/C2HCl3O2/c3-2(4,5)1(6)7/h(H,6,7)

InChI key

YNJBWRMUSHSURL-UHFFFAOYSA-N

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General description

Trichloroacetic acid (TCA) is a strong acid. At the pH of drinking water, TCA exists almost in salt form.

Application

Trichloroacetic acid solution has been used:
  • in indoleamine 2,3-dioxygenase (IDO) enzyme assay to hydrolyze N-formylkynurenine and produce kynurenine
  • in the proliferation of human pulmonary artery smooth muscle cells (HPASMCs)
  • to treat ground tissue and precipitate proteins during protein extraction and quantification

Biochem/physiol Actions

Trichloroacetic acid solution is traditionally used to precipitate protein. It can be used to determine protein concentration by quantitative precipitation. Trichloroacetic acid can also be used as a decalcifier and fixative in microscopy.
Trichloroacetic acid (TCA) with no known systemic toxicity, is used as a time-honored agent for superficial peeling. It is a peroxisome proliferator.

Signal Word

Danger

Hazard Statements

H314 - H335 - H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1A - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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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Enzymatic Assay of Proteinase K with Hemoglobin Substrate

Proteinase K (EC 3.4.21.64) activity can be measured spectrophotometrically using hemoglobin as the substrate. Proteinase K hydrolyzes hemoglobin denatured with urea, and liberates Folin-postive amino acids and peptides. One unit will hydrolyze hemoglobin to produce color equivalent to 1.0 μmol of tyrosine per minute at pH 7.5 at 37 °C (color by Folin & Ciocalteu's Phenol Reagent).

Enzymatic Assay of Proteinase K with Hemoglobin Substrate

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Enzymatic Activity of Glucose-6-Phosphatase [EC 3.1.3.9]

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To standardize a procedure for the determination of the enzymatic assay of choloylglycine hydrolase.

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