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M1170

Sigma-Aldrich

Met-Arg-Phe-Ala acetate salt

≥90% (HPLC)

Synonym(s):

L-methionyl-L-arginyl-L-phenylalanyl-L-alanine

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About This Item

Empirical Formula (Hill Notation):
C23H37N7O5S
CAS Number:
67368-29-0
Molecular Weight:
523.65
MDL number:
MFCD00083776
UNSPSC Code:
12352200
PubChem Substance ID:
24896621
NACRES:
NA.26

Quality Level

200

Assay

≥90% (HPLC)

form

powder

technique(s)

MALDI-MS: suitable

color

white

storage temp.

−20°C

SMILES string

CSCCC(N)C(=O)NC(CCCNC(N)=N)C(=O)NC(Cc1ccccc1)C(=O)NC(C)C(O)=O

InChI

1S/C23H37N7O5S/c1-14(22(34)35)28-21(33)18(13-15-7-4-3-5-8-15)30-20(32)17(9-6-11-27-23(25)26)29-19(31)16(24)10-12-36-2/h3-5,7-8,14,16-18H,6,9-13,24H2,1-2H3,(H,28,33)(H,29,31)(H,30,32)(H,34,35)(H4,25,26,27)

InChI key

UWTASUKCZNGRDU-UHFFFAOYSA-N

Related Categories

Amino Acid Sequence

Met-Arg-Phe-Ala

Application

A marker in an unambiguous method for sequencing tetrapeptides using FAB, MI, and collisional activation spectra in combination.
Met-Arg-Phe-Ala acetate salt has been used as an internal standard in the mass determination of the compounds by electrospray ionization mass spectrometry (ESI-MS). It has also been used in comparing the laser energy used in nanostructure-initiator mass spectrometry (NIMS) and matrix-assisted laser desorption/ionization (MALDI).

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

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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Nanostructure-initiator mass spectrometry (NIMS) is a new surface-based MS technique that uses a nanostructured surface to trap liquid ('initiator') compounds. Analyte materials adsorbed onto this 'clathrate' surface are subsequently released by laser irradiation for mass analysis. In this protocol, we
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