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Documenti fondamentali

1.08178

Supelco

Acido trifluoroacetico

for protein sequence analysis

Sinonimo/i:

TFA

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50 ML
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244,00 €


Spedizione prevista il30 gennaio 2025Dettagli


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Cambia visualizzazione
50 ML
244,00 €

About This Item

Formula condensata:
CF3COOH
Numero CAS:
Peso molecolare:
114.02
Beilstein:
742035
Numero MDL:
Codice UNSPSC:
12352106
Numero indice EU:
200-929-3
NACRES:
NA.21
pH:
1 (10 g/L in H2O)

244,00 €


Spedizione prevista il30 gennaio 2025Dettagli


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Densità del vapore

3.9 (vs air)

Livello qualitativo

Tensione di vapore

97.5 mmHg ( 20 °C)

Saggio

≥99.7% (acidimetric)

Stato

liquid

Impurezze

≤0.02% Water (Karl Fischer)

Indice di rifrazione

n20/D 1.3 (lit.)

pH

1 (10 g/L in H2O)

P. ebollizione

72.4 °C (lit.)

Punto di fusione

−15.4 °C (lit.)

Solubilità

soluble 10 g/mL

Densità

1.489 g/mL at 20 °C (lit.)

Temperatura di conservazione

2-30°C

Stringa SMILE

OC(C(F)(F)F)=O

InChI

1S/C2HF3O2/c3-2(4,5)1(6)7/h(H,6,7)
DTQVDTLACAAQTR-UHFFFAOYSA-N

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Applicazioni

Trifluoroacetic acid (TFA) can be used as an ion-pairing agent in a reverse-phase HPLC system to separate peptides because it enhances peak resolution. It also has low absorption detection wavelengths and is relatively volatile and can be easily removed. For the majority of peptide separations, TFA has been used at concentrations ranging from 0.05 to 0.1%(6.5-13 mM).[1]

Risultati analitici

Assay (acidimetric): ≥ 99.7 %
Identity (IR-spectrum): passes test
Density (d 20 °C/20 °C): about 1.53
Boiling point: about 72 °C
Water (according to Karl Fischer): ≤ 0.02 %

Pittogrammi

CorrosionExclamation mark

Avvertenze

Danger

Indicazioni di pericolo

Classi di pericolo

Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1A

Codice della classe di stoccaggio

8A - Combustible, corrosive hazardous materials

Classe di pericolosità dell'acqua (WGK)

WGK 2

Punto d’infiammabilità (°F)

212.0 °F - Pensky-Martens closed cup

Punto d’infiammabilità (°C)

> 100 °C - Pensky-Martens closed cup


Certificati d'analisi (COA)

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Y Chen et al.
Journal of chromatography. A, 1043(1), 9-18 (2004-08-20)
Trifluoroacetic acid (TFA) remains the dominant mobile phase additive for reversed-phase high-performance liquid chromatography (RP-HPLC) of peptides after more than two decades since its introduction to this field. Generally, TFA has been employed in a concentration range of 0.05-0.1% (6.5-13

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

    1 risposta
    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

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

    1 risposta
    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/449/386/product-dating-information-mk.pdf

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