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
8.08260
Ácido trifluoroacético
for synthesis
Sinónimos:
TFA
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Nombre del producto
Ácido trifluoroacético, for synthesis
InChI
1S/C2HF3O2/c3-2(4,5)1(6)7/h(H,6,7)
SMILES string
OC(C(F)(F)F)=O
InChI key
DTQVDTLACAAQTR-UHFFFAOYSA-N
grade
synthesis grade
vapor density
3.9 (vs air)
vapor pressure
97.5 mmHg ( 20 °C)
assay
≥99% (acidimetric)
form
liquid
dilution
(for synthesis)
refractive index
n20/D 1.3 (lit.)
pH
1 (10 g/L in H2O)
bp
72.4 °C (lit.)
mp
−15.4 °C (lit.)
solubility
soluble 10 g/mL
density
1.489 g/mL at 20 °C (lit.)
storage temp.
2-30°C
Quality Level
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Analysis Note
Densidad (d 20 °C; 4 °C): 1,487 - 1,490
Identidad (IR): pasa la prueba
Application
- en la conversión directa de ciclohexanona a caprolactama utilizando acetonitrilo como aditivo.
- En la síntesis de imidazoles 1,2,4,5-tetrasustituidos por condensación de cuatro componentes de bencilo, aldehídos, aminas y acetato de amonio.
- en la síntesis de d-α-Tterpineo a partir de d-limoneno por adición de Markovnikov seguida de hidrólisis.
Features and Benefits
- Gran acidez
- Fácil eliminación
- Buena solubilidad en disolventes orgánicos y en agua.
General description
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1A
Clase de almacenamiento
8A - Combustible corrosive hazardous materials
wgk
WGK 2
flash_point_f
>212.0 °F - Pensky-Martens closed cup
flash_point_c
> 100 °C - Pensky-Martens closed cup
Certificados de análisis (COA)
Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»
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Protocolos
Fmoc resin cleavage and deprotection are crucial steps for peptide synthesis, yielding the desired peptide after resin detachment.
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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Does the packaging for this item include an airtight septum to prevent exposure to the atmosphere and to allow product to be removed from the bottle with a syringe?
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This product has no septum. The packaging includes a DN 32 screw cap.
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