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
439134
Acetonitrile
≥99.9%, gradient grade, suitable for UV/Vis spectroscopy, HPLC
Sinonimo/i:
ACN, Cianometano, Cianuro di metile, Etilnitrile
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Nome del prodotto
Acetonitrile, suitable for HPLC, gradient grade, ≥99.9%
Grado
gradient grade
Livello qualitativo
Densità del vapore
1.41 (vs air)
Tensione di vapore
72.8 mmHg ( 20 °C)
Descrizione
HPLC gradient analysis <= 0.5 mAU @254 nm
HPLC gradient analysis <= 3 mAU @ 210 nm
baseline drift at 210 nm <= 15 mAU
Saggio
≥99.9%
Stato
liquid
Temp. autoaccensione
973 °F
Purificato mediante
sub-micron filtration
Limite di esplosione
16 %
tecniche
HPLC: suitable
UV/Vis spectroscopy: suitable
Impurezze
≤0.0002% free alkali (as NH3)
≤0.001% free acid (as CH3COOH)
≤0.01% water (Karl Fischer)
≤0.5 ppb quinine fluor., 365 nm
≤1 ppb quinine fluor., 254 nm
Residuo dopo evaporazione
<0.0002%
Indice di rifrazione
n20/D 1.344 (lit.)
P. ebollizione
81-82 °C (lit.)
Punto di fusione
−45 °C (lit.)
Solubilità
water: soluble
Densità
0.786 g/mL at 25 °C (lit.)
λ
H2O reference
Assorbanza UV
λ: 195 nm Amax: ≤0.12
λ: 200 nm Amax: ≤0.032
λ: 230 nm Amax: ≤0.0044
applicazioni
food and beverages
Formato
neat
Stringa SMILE
CC#N
InChI
1S/C2H3N/c1-2-3/h1H3
WEVYAHXRMPXWCK-UHFFFAOYSA-N
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Categorie correlate
1 of 4
Questo articolo | 34998 | 900667 | 34881 |
|---|---|---|---|
| grade gradient grade | grade HPLC Plus | grade - | grade - |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| assay ≥99.9% | assay ≥99.9% | assay ≥99.92% | assay ≥99.8% (GC) |
| application(s) food and beverages | application(s) food and beverages | application(s) food and beverages | application(s) food and beverages |
| technique(s) HPLC: suitable, UV/Vis spectroscopy: suitable | technique(s) HPLC: suitable, IR spectroscopy: suitable | technique(s) mass spectrometry (MS): suitable | technique(s) HPLC-GC: suitable, HPLC: suitable, gas chromatography (GC): suitable |
| solubility water: soluble | solubility - | solubility - | solubility - |
Descrizione generale
Applicazioni
- Chromatographic Separation of Anthocyanins: Acetonitrile is a preferred solvent in high-performance liquid chromatography (HPLC) for the separation of anthocyanins and other phenolic compounds. Studies have explored the selectivity control of anthocyanin separation by replacing acetonitrile with methanol in the mobile phase, highlighting the solvent′s role in optimizing chromatographic conditions for improved resolution and detection sensitivity (Deineka et al., Journal of Analytical Chemistry, 2021).
- Peroxyoxalate Chemiluminescence Detection: Acetonitrile is used in peroxyoxalate chemiluminescence for the detection of α-amino acids. The solvent′s ability to form stable mixed solutions with water and ethyl acetate enhances the chemiluminescence reaction, allowing for sensitive and selective detection of amino acids in various samples. This application is essential for biochemical and clinical analyses (Kan et al., American Journal of Analytical Chemistry, 2020).
- Electrochemical Detection of DNA Modifications: Acetonitrile is utilized in electrochemical methods for detecting DNA modifications, such as 5-formyluracil. The solvent′s role in stabilizing the (2-benzimidazolyl) acetonitrile labeling reaction enhances the selectivity and sensitivity of detecting DNA modifications, which is crucial for genomic and biomedical research (Tang et al., Analytical Chemistry, 2021).
- Alternative Solvent in Chromatography: Research has investigated replacing acetonitrile with ethanol in reversed-phase HPLC for determining anthocyanins. This substitution aims to maintain chromatographic performance while reducing the environmental impact and costs associated with acetonitrile use. The findings demonstrate the feasibility of using ethanol as a greener alternative without compromising analytical quality (Deineka et al., Journal of Analytical Chemistry, 2023).
Confezionamento
As a global leader in lab reagents, we are constantly looking for new ways to optimize the safety of our products. The newly developed 4L solvent bottle design features advanced sealing technology that eliminates leaks to make the handling of solvents safer and more convenient than ever before.
See all the new features here!
Nota sulla preparazione
Prodotti correlati
Avvertenze
Danger
Indicazioni di pericolo
Classi di pericolo
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2
Codice della classe di stoccaggio
3 - Flammable liquids
Classe di pericolosità dell'acqua (WGK)
WGK 2
Punto d’infiammabilità (°F)
35.6 °F - closed cup
Punto d’infiammabilità (°C)
2.0 °C - closed cup
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Protocolli
A guide to create solvent systems used for the thin-layer chromatography assay of Novabiochem products.
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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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Do the poly inner containers comply with any recognized specifications, such as DOT spec 34 or UN rating 1H1?
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The CS shell should bear the UN Mark typically appearing as "1A2/X50/S/20/USA...".
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Are these poly inner containers designed to be removed and used separately from the stainless steel overpack?
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The drum consists of an inner poly drum and an outer CS shell, which are intended to be used together. It is crucial to note that these components have not been designed for separate usage. Removing the inner poly drum from the outer CS shell is not advised.
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