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C8982

Sigma-Aldrich

α-Cyano-4-hydroxycinnamic acid

suitable for MALDI-TOF MS

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/REAXYS Number:
3271427
EC Number:
MDL number:
UNSPSC Code:
12352106
PubChem Substance ID:
NACRES:
NA.21

form

powder

Quality Level

analyte chemical class(es)

glycans, peptides, proteins

mp

245-250 °C (lit.)

suitability

suitable for MALDI-TOF MS

storage temp.

room temp

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 (CHCA) is specially purified and qualified as a matrix for peptide MALDI-MS (matrix assisted laser desorption ionization-mass spectrometry) calibration standards. CHCA enhances ionization of protein or peptide standards and samples in matrix assisted laser desorption ionization (MALDI) mass spectrometers.
It is also available as part of our ProteoMass MALDI calibration kits (MS-CAL1 and MS-CAL3).

Application

α-Cyano-4-hydroxycinnamic acid has been used as a matrix for MALDI-TOF MS (matrix assisted laser desorption ionization-time of flight mass spectrometry) analysis. The matrix has also been used for sample preparation.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Legal Information

6538 is a trademark of American Type Culture Collection
ProteoMass is a trademark of Sigma-Aldrich Co. LLC

related product

Product No.
Description
Pricing

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Skin Sens. 1B

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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International Journal of Mass Spectrometry, 262, 67-72 (2007)
a-Cyano-4-hydroxycinnamic acid as a matrix for matrixassisted laser desorption mass spectromtry.
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J Gobom et al.
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We present a new MALD1 sample preparation technique for peptide analysis using the matrix alpha-cyano-4-hydroxy-cinnamic acid (CHCA) and prestructured sample supports. The preparation integrates sample purification, based on the affinity of microcrystalline CHCA for peptides, thereby simplifying the analysis of

Protocols

Explore mass spectrometry analysis of glycans for glycomic & glycoproteomic neutral & acidic glycan analysis. See a general mass spec glycan analysis procedure.

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