251399
Trichloroacetic acid
ACS reagent, ≥99%
Synonym(s):
TCA
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About This Item
Linear Formula:
Cl3CCOOH
CAS Number:
Molecular Weight:
163.39
EC Number:
200-927-2
UNSPSC Code:
12352100
MDL number:
Beilstein/REAXYS Number:
970119
grade
ACS reagent
vapor density
<1 (vs air)
vapor pressure
1 mmHg ( 51 °C)
assay
≥99%
ign. residue
≤0.03%
refractive index
n20/D 1.62 (lit.)
bp
196 °C (lit.)
mp
54-58 °C (lit.)
density
1.62 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤0.001%, nitrate (NO3-): ≤0.002%, phosphate (PO43-): ≤5 ppm, sulfate (SO42-): ≤0.02%
cation traces
Fe: ≤0.001%, heavy metals: ≤0.002%
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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Application
Traditionally used to precipitate protein. Has been used to determine protein concentration by quantitative precipitation. Used as decalcifier and fixative in microscopy.
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