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91228

Acido tricloroacetico

BioUltra, ≥99.5% (T)

Sinonimo/i:

TCA

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Informazioni su questo articolo

Formula condensata:
Cl3CCOOH
Numero CAS:
Peso molecolare:
163.39
UNSPSC Code:
12352101
NACRES:
NA.25
PubChem Substance ID:
EC Number:
200-927-2
Beilstein/REAXYS Number:
970119
MDL number:
Assay:
≥99.5% (T)
Form:
crystals, flakes
Grade:
biotech. grade
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grade

biotech. grade

Quality Segment

vapor density

<1 (vs air)

vapor pressure

1 mmHg ( 51 °C)

product line

BioUltra

assay

≥99.5% (T)

form

crystals, flakes

impurities

insoluble matter, passes filter test

ign. residue

≤0.05%

refractive index

n20/D 1.62 (lit.)

pH

<1.0 (25 °C, 0.5 M in H2O)

bp

196 °C (lit.)

mp

54-58 °C (lit.)

solubility

H2O: 0.5 M at 20 °C, clear, colorless

density

1.62 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤30 mg/kg, nitrate (NO3-): ≤20 mg/kg, phosphate (PO43-): ≤10 mg/kg, sulfate (SO42-): ≤100 mg/kg

SMILES string

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

cation traces

Al: ≤5 mg/kg, As: ≤0.1 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg

λ

0.5 M in H2O

UV absorption

λ: 260 nm Amax: 1.60, λ: 280 nm Amax: 0.15

InChI

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

InChI key

YNJBWRMUSHSURL-UHFFFAOYSA-N

General description

Trichloroacetic acid (TCA) is derived from Trichloroethylene (TCE) metabolism.[1] It is used as an acid decalcifying agent. TCA is used as a fixative for nuclear staining and protein precipitation.

Application

Trichloroacetic acid (TCA) has been used:
  • to determine its effect on avian embryos during an exposure window encompassing cardiac specification
  • as a cell fixative
  • to terminate the O-acetylserine (thiol)lyase (OASTL) enzymatic assay
  • for the precipitation of acidic ribosomal proteins (RPs)

Usato abitualmente per la precipitazione delle proteine. È stato usato per determinare la concentrazione proteica per mezzo della precipitazione quantitativa. Usato come decalcificante e fissativo in microscopia.

Other Notes

Concentration of protein by quantitative precipitation; Cytochemical demonstration of DNA with a thiazine dye.

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Questo articolo
T9159T4885T6399
grade

biotech. grade

grade

BioPerformance Certified

grade

-

grade

ACS reagent

assay

≥99.5% (T)

assay

≥99.0%

assay

≥99.0% (titration)

assay

≥99.0%

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

form

crystals, flakes

form

-

form

powder or crystals

form

crystalline

pH

<1.0 (25 °C, 0.5 M in H2O)

pH

-

pH

1 (at 25 °C, 81,7  g/L)

pH

(1 at 81.7 g/l at 25 °C)

solubility

H2O: 0.5 M at 20 °C, clear, colorless

solubility

H2O: 0.5 M at 20 °C, clear, colorless

solubility

H2O: 1 g/10 mL

solubility

H2O: 1 g/10 mL


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pictograms

CorrosionEnvironment

signalword

Danger

hcodes

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

Classe di stoccaggio

8A - Combustible corrosive hazardous materials



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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

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