Skip to Content
Merck

Key Documents

View All Documentation

T4885

Trichloroacetic acid

≥99.0% (titration), powder or crystals

Synonym(s):

TCA

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Linear Formula:
Cl3CCOOH
CAS Number:
76-03-9
Molecular Weight:
163.39
NACRES:
NA.21
PubChem Substance ID:
24900233
UNSPSC Code:
12352100
EC Number:
200-927-2
MDL number:
MFCD00004177
Beilstein/REAXYS Number:
970119
Assay:
≥99.0% (titration)
Form:
powder or crystals
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

Trichloroacetic acid, ≥99.0% (titration)

Quality Level

200

vapor density

<1 (vs air)

vapor pressure

1 mmHg ( 51 °C)

assay

≥99.0% (titration)

form

powder or crystals

refractive index

n20/D 1.62 (lit.)

pH

1 (at 25 °C, 81,7  g/L)

bp

196 °C (lit.)

mp

54-58 °C (lit.)

solubility

H2O: 1 g/10 mL

density

1.62 g/mL at 25 °C (lit.)

functional group

carboxylic acid, chloro

storage temp.

2-8°C

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

Application

Traditionally used to precipitate protein. Has been used to determine protein concentration by quantitative precipitation. Used as decalcifier and fixative in microscopy.
Trichloroacetic acid (TCA) can be used as a catalyst to synthesize:
  • β-enaminones via condensation reaction of 1,3-dicarbonyl compounds and amines.
  • 6-amino-3-methyl-1,4-diphenyl-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile derivatives via four-component condensation reaction of ethyl acetoacetate, phenylhydrazine, malononitrile, and aromatic aldehydes.
  • Tetrahydrobenzo[a]xanthen-11-ones by three-component reaction of aldehydes, 2-naphthol and dimedone.

Still not finding the right product?

Explore all of our products under Trichloroacetic acid

pictograms

CorrosionEnvironment
GHS05,GHS09

signalword

Danger

hcodes

H314,H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1A

wgk

WGK 2

flash_point_f

>235.4 °F - closed cup

flash_point_c

> 113 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Storage Class

8A - Combustible corrosive hazardous materials

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
098K0661
068K0724
068K0700
117K0724
107K0675

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Efficient Synthesis of β-Enaminones and β-Enamino Esters Using Tris (Hydrogensulfato) Boron or Trichloroacetic Acid as Catalysts
Karimi-Jaberi Z and Takmilifard Z
European Chemical Bulletin, 2, 211-213 (2013)
Expeditious, four-component synthesis of 1, 4-dihydropyrano [2, 3-c] pyrazole derivatives catalyzed by trichloroacetic acid or ceric sulfate
Jaberi ZK, et al.
Acta Chimica Slovenica, 60(1), 105-108 (2013)
Alan Mortensen et al.
Biomarkers : biochemical indicators of exposure, response, and susceptibility to chemicals, 18(1), 55-62 (2012-10-17)
The ratio of the nitric oxide synthase (NOS) cofactor tetrahydrobiopterin (BH(4)) to its oxidized form dihydrobiopterin (BH(2)) has been suggested as an index of endothelial dysfunction. Consequently, much effort has been put into preserving the in vivo equilibrium between these
View All Related Papers