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Merck

360457

Acetonitrile

≥99.5%, ACS reagent

Synonym(s):

ACN, Cyanomethane, Ethyl nitrile, Methyl cyanide

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About This Item

Linear Formula:
CH3CN
CAS Number:
Molecular Weight:
41.05
NACRES:
NA.21
PubChem Substance ID:
eCl@ss:
39031501
UNSPSC Code:
12191502
EC Number:
200-835-2
MDL number:
Beilstein/REAXYS Number:
741857
grade:
ACS reagent
assay:
≥99.5%
bp:
81-82 °C (lit.)
vapor pressure:
72.8 mmHg ( 20 °C)

Product Name

Acetonitrile, ACS reagent, ≥99.5%

InChI key

WEVYAHXRMPXWCK-UHFFFAOYSA-N

InChI

1S/C2H3N/c1-2-3/h1H3

SMILES string

CC#N

grade

ACS reagent

vapor density

1.41 (vs air)

vapor pressure

72.8 mmHg ( 20 °C)

assay

≥99.5%

form

liquid

autoignition temp.

973 °F

expl. lim.

16 %

dilution

(for analytical testing)

impurities

≤0.3% water
≤0.6 μeq/g Titr. base
≤8 μeq/g Titr. acid

evapn. residue

≤0.005%

color

APHA: ≤10

refractive index

n20/D 1.344 (lit.)

bp

81-82 °C (lit.)

mp

−45 °C (lit.)

density

0.786 g/mL at 25 °C (lit.)

format

neat

Quality Level

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Application

Acetonitrile can be used as a solvent in:      
  • The solid-phase peptide synthesis.     
  • The sialylation reactions.      
  • The synthesis of copper nanoparticles by reduction of copper nitrate salt using NaBH4. During the preparation, ACN acts as a protecting solvent, which prevents the oxidation of nanoparticles.      
  • The preparation of diaryl selenides by Cu-catalyzed coupling reaction between aryl iodides and diphenyl diselenide. In this process, ACN also functions as a ligand for the copper catalyst to increase its catalytic activity.

Features and Benefits

ACS solvents meet or exceed the high standards of the American Chemical Society (ACS) ,with test specifications that are specialized to every compound. According to the American Chemical Society, ACS reagent grade implies that it is a substance of sufficient purity to be used in most chemical analyses or reactions.

General description

Acetonitrile (MeCN, ACN) is an aliphatic nitrile that is commonly used as a reaction solvent as well as a chemical intermediate in organic synthesis. In many chromatographic techniques, MeCN is used as a mobile phase solvent due to its low viscosity, high elution strength, and miscibility in water.
Our premium ACS solvents are ideal for routine chemical synthesis, drying, purification, and critical labware cleaning. They meet or exceed the rigorous standards of the American Chemical Society (ACS), ensuring high-quality results for your research needs.

Premium ACS Solvents: Our solvents meet or exceed the stringent standards set by the American Chemical Society, ensuring high quality and reliability for your laboratory applications.

Replicable and Publishable Results: Designed for consistency, our solvents deliver results that can be reliably reproduced, making them ideal for research that requires publication.

Versatile Applications: Suitable for routine chemical synthesis, drying, purification, and critical labware cleaning, our solvents cater to a wide range of research needs in the laboratory.

pictograms

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Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2

Storage Class

3 - Flammable liquids

wgk

WGK 2

flash_point_f

35.6 °F - closed cup

flash_point_c

2.0 °C - closed cup


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Purification of acetonitrile.
Walter M and Ramaley L.
Analytical Chemistry, 45(1), 165-166 (1973)
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From a previously validated paediatric population pharmacokinetic model, it was derived that non-linear morphine maintenance doses of 5 μg/kg(1.5)/h, with a 50 % dose reduction in neonates with a postnatal age (PNA) <10 days, yield similar morphine and metabolite concentrations
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