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Merck
CN

5.33001

Acetic acid

greener alternative

100%, for LC-MS LiChropur™

别名:

乙酸, 冰乙酸

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线性分子式:
CH3CO2H
化学文摘社编号:
64-19-7
分子量:
60.05
UNSPSC Code:
51242002
EC Index Number:
200-580-7
NACRES:
NB.21
Beilstein/REAXYS Number:
506007
MDL number:
MFCD00036152

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产品名称

100%乙酸, for LC-MS LiChropur™

SMILES string

[F2C(F2C)13F3C]C(O)=O

InChI key

QTBSBXVTEAMEQO-UHFFFAOYSA-N

InChI

1S/C2H4O2/c1-2(3)4/h1H3,(H,3,4)

vapor density

2.07 (vs air)

vapor pressure

15.4 hPa ( 20 °C)

assay

≥99.8% (acidimetric)

form

liquid

autoignition temp.

485 °C
800 °F

expl. lim.

16 %, 92 °F
4 %, 59 °F

greener alternative product characteristics

Waste Prevention
Use of Renewable Feedstocks
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

technique(s)

LC/MS: suitable

refractive index

n20/D 1.371 (lit.)

pH

2.5 (20 °C, 50 g/L in H2O)

kinematic viscosity

1.17 cSt(20 °C)

bp

117-118 °C (lit.)

mp

16.2 °C (lit.)

transition temp

flash point 39 °C

density

1.04 g/mL at 25 °C (lit.)

cation traces

Al: ≤2.0 ppm
Ca: ≤20.0 ppm
Cu: ≤1.0 ppm
Fe: ≤20.0 ppm
K: ≤2.0 ppm
Mg: ≤2.0 ppm
NH4+: ≤10.0 ppm
Na: ≤5.0 ppm

greener alternative category

Aligned

storage temp.

15-25°C

Quality Level

100

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Application

100%乙酸可用作肽消化产物的CE-MS（毛细管电泳结合质谱）分析的背景电解质（BGE）。

General description

100%乙酸是LC-MS（液相色谱-质谱）应用中最常用的添加剂或溶剂。
We are committed to providing greener alternatives that adhere to the 12 Principles of Greener Chemistry. This acetic acid is bio-renewable and produced from sustainably sourced beechwood, minimizing waste and promoting resource efficiency. Thus it aligns with ′Waste Prevention′, and ′Use of Renewable Feedstocks′.

Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

pictograms

FlameCorrosion
GHS02,GHS05

signalword

Danger

Hazard Classifications

Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1A

存储类别

3 - Flammable liquids

wgk

WGK 1

flash_point_f

102.2 °F

flash_point_c

39 °C

法规信息

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Klaus Faserl et al.
Methods (San Diego, Calif.), 184, 125-134 (2020-02-06)
The analysis, identification and quantification of histones and their post-translational modifications plays a central role in chromatin research and in studying epigenetic regulations during physiological processes. In the last decade analytical strategies based on mass spectrometry have been greatly improved
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Journal of chromatography. A, 1216(4), 685-699 (2008-09-19)
The most widely used ionization techniques in liquid chromatography-mass spectrometry (LC-MS) are electrospray ionization (ESI), atmospheric pressure chemical ionization (APCI) and atmospheric pressure photoionization (APPI). All three provide user friendly coupling of LC to MS. Achieving optimal LC-MS conditions is

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