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39468

Sigma-Aldrich

α-Cyano-4-hydroxycinnamic acid

matrix substance for MALDI-MS, Ultra pure

Synonym(s):

α-CCA, α-CHCA, α-Cyano, 4-HCCA, ACCA

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About This Item

Linear Formula:
HOC6H4CH=C(CN)CO2H
CAS Number:
Molecular Weight:
189.17
Beilstein:
3271427
EC Number:
MDL number:
UNSPSC Code:
41116105
PubChem Substance ID:
NACRES:
NA.21

grade

matrix substance for MALDI-MS

Quality Level

form

solid

analyte chemical class(es)

glycans, peptides, proteins

technique(s)

MALDI-MS: suitable

mp

245-250 °C (lit.)
245-250 °C

solubility

methanol: 10 mg/mL, clear

cation traces

Al: ≤1 mg/kg
Ba: ≤1 mg/kg
Ca: ≤1 mg/kg
Cd: ≤1 mg/kg
Co: ≤1 mg/kg
Cr: ≤1 mg/kg
Cu: ≤1 mg/kg
Fe: ≤1 mg/kg
K: ≤1 mg/kg
Li: ≤1 mg/kg
Mg: ≤1 mg/kg
Mn: ≤1 mg/kg
Na: ≤1 mg/kg
Ni: ≤1 mg/kg
Pb: ≤1 mg/kg
Sr: ≤1 mg/kg
Zn: ≤1 mg/kg

storage temp.

2-8°C

SMILES string

OC(=O)\C(=C\c1ccc(O)cc1)C#N

InChI

1S/C10H7NO3/c11-6-8(10(13)14)5-7-1-3-9(12)4-2-7/h1-5,12H,(H,13,14)/b8-5+

InChI key

AFVLVVWMAFSXCK-VMPITWQZSA-N

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General description

α-Cyano-4-hydroxycinnamic acid (α-CHCA) functions as matrix and helps in facilitating ionization of proteins and peptides in a matrix-assisted laser desorption/ionization (MALDI) time-of-flight (TOF) mass spectrometer.

Application

It was used as matrix in improving the detection of low concentration protein digests on MALDI-TOF.

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Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Skin Sens. 1B

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Xiangping Zhu et al.
Journal of biomolecular techniques : JBT, 14(4), 298-307 (2004-01-13)
Alpha-cyano-4-hydroxycinnamic acid (alpha-CHCA) as a matrix facilitates the ionization of proteins and peptides in a matrix-assisted laser desorption/ionization (MALDI) time-of-flight (TOF) mass spectrometer. The matrix itself also ionizes and so do its sodium and potassium adducts. Matrix clusters and metal
Anne R Diers et al.
The Biochemical journal, 444(3), 561-571 (2012-03-31)
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High pretreatment tumor lactate content is associated with poor outcome after fractionated irradiation in human squamous cell carcinoma (hSCC) xenografts. Therefore, decreasing lactate content might be a promising approach for increasing tumor radiosensitivity. As the basis for such experiments, the
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We have characterized the development of seeds in the model legume Lotus japonicus. Like soybean (Glycine max) and pea (Pisum sativum), Lotus develops straight seed pods and each pod contains approximately 20 seeds that reach maturity within 40 days. Histological
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Articles

One of the most important aspects of our ultra-pure MALDI matrix substances is their ability to dissolve rapidly and completely; a brief vortex mixing is typically sufficient.

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