439134

Acetonitrile

≥99.9%, gradient grade, suitable for UV/Vis spectroscopy, HPLC

• Sinonimo/i: ACN, Cianometano, Cianuro di metile, Etilnitrile
• Formula condensata: CH₃CN
• Numero CAS: 75-05-8
• Peso molecolare: 41.05
• Beilstein: 741857
• Numero CE: 200-835-2
• Numero MDL: MFCD00001878
• Codice UNSPSC: 12190000
• ID PubChem: 329756422
• NACRES: NA.03

Proprietà

• product name: Acetonitrile, suitable for HPLC, gradient grade, ≥99.9%
• Grado: gradient grade
• Livello qualitativo: 100
• 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%
• Forma fisica: 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. eboll.: 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 A_max: ≤0.12; λ: 200 nm A_max: ≤0.032; λ: 230 nm A_max: ≤0.0044
• applicazioni: food and beverages
• Formato: neat
• Stringa SMILE: CC#N
• InChI: 1S/C2H3N/c1-2-3/h1H3; WEVYAHXRMPXWCK-UHFFFAOYSA-N

Descrizione

Descrizione generale

Acetonitrile (MeCN), an aliphatic nitrile, is a colorless liquid with a pleasant odor. It is widely used as a solvent and intermediate in organic syntheses. It is transparent to UV-visible light making it highly applicable in spectrophotometric and fluorimetric techniques. As MeCN has low viscosity, high elution strength and is highly miscible in water, it is utilized as a mobile phase component in many chromatographic techniques. Its infrared spectrum has been recorded. Synthesis of alkyl hydroperoxides in MeCN by alkane oxidation with hydrogen peroxide in the presence of iron complexes has been studied. The hydrogenation of MeCN to form ethylamine using Co–B amorphous alloy catalyst has been investigated.

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).

Nota sulla preparazione

Product filtered through a 0.2 μm filter

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Informazioni sulla sicurezza

• Pittogrammi: GHS02,GHS07
• Avvertenze: Danger
• Indicazioni di pericolo: H225,H302 + H312 + H332,H319
• Consigli di prudenza: P210 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P312 - P305 + P351 + P338
• 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