M1170

Met-Arg-Phe-Ala acetate salt

≥90% (HPLC), suitable for MALDI-MS

• Synonym(s): L-methionyl-L-arginyl-L-phenylalanyl-L-alanine
• Empirical Formula (Hill Notation): C₂₃H₃₇N₇O₅S
• CAS Number: 67368-29-0
• Molecular Weight: 523.65
• MDL number: MFCD00083776
• UNSPSC Code: 12352209
• PubChem Substance ID: 24896621
• NACRES: NA.26

Properties

• 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

Description

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).

Safety Information

• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)