T8657
Sigma

Trichloroacetic acid

for electrophoresis, suitable for fixing solution (for IEF and PAGE gels), ≥99%

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Synonym

TCA

Molecular Formula

Cl₃CCOOH

Molecular Weight

163.39

CAS Number

76-03-9

Beilstein Registry Number

970119

MDL number

MFCD00004177

PubChem Substance ID

24900550

EG/EC Number

200-927-2

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Descriptions

Application

Traditionally used to precipitate protein. Has been used to determine protein concentration by quantitative precipitation. Used as decalcifier and fixative in microscopy.

Properties

grade

for electrophoresis

vapor density

<1 (vs air)

vapor pressure

1 mmHg ( 51 °C)

assay

≥99%

turbidity

≤3 NTU (1 g/ml)

refractive index

n20/D 1.62(lit.)

196 °C(lit.)

54-58 °C(lit.)

density

1.62 g/mL at 25 °C(lit.)

anion traces

chloride (Cl^-): <0.001%

nitrate (NO₃^-): <0.002%

phosphate (PO₄^-): <5 ppm

sulfate (SO₄^2-): ≤0.02%

cation traces

Fe: <0.001%

heavy metals (as Pb): <0.002%

suitability

suitable for fixing solution (for IEF and PAGE gels)

storage temp.

2-8°C

References

Merck

Merck 13,9700

Beilstein

Beil. 2,IV,508

Fieser

Fieser 1,1194 / Fieser 2,425 / Fieser 4,520

reference

Aldrich MSDS 1, 1733:A / Corp MSDS 1 (2), 3402:C / FT-IR 2 (1), 792:A / FT-IR 1 (1), 508:C / FT-NMR 1 (1), 793:B / IR-Spectra (3), 298:D / IR-Spectra (2), 269:A / NMR-Reference 2 (1), 443:D / RegBook 1 (1), 557:A / Sax 6, 2617 / Sigma FT-IR 1 (1), 1472:C / Structure Index 1, 79:C:2

Safety

Hazard Codes

C,N

Risk Statements

35-50/53

Safety Statements

26-36/37/39-45-60-61

RIDADR

UN1839 8/PG 2

WGK Germany

RTECS

AJ7875000