Peptide Ion Calculator at App Store analyse

App power index: 100 (based on ranks around App Stores today)
Reference Education
Developer: Patrick Salveson
Price: 0 free
Current version: 2.1.1, last update: 7 years ago
First release : 13 Aug 2015
App size: 12.69 Mb
4.0 ( 6880 ratings )
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Estimation application downloads and cost

> 2.2k
Monthly downloads
~ $ 900
Estimation App Cost


Now introducing custom masses! Cant find an amino acid or side chain modification? Add it to the app yourself!

Peptide Ion Calculator is the perfect tool for peptide and protein chemists

Peptide Ion Calculator makes analyzing mass spec data of peptides a breeze. Build you peptides sequence, then enter experimentally observed ions. Peptide Ion Calculator will return any potential ion whos theoretical exact mass is within 0.3 amu of your observed mass.

Amino Acids:
All 20 natural amino acids
Several unnatural amino acids
Several N-methylated amino acids
One N15 labeled amino acid

Peptide Ion Calculator makes it easy to troubleshoot a failed synthesis. Peptide Ion Calculator will search your observed mass against a list of singe and double deletions/additions, as well as a number of side reaction that can occur during solid phase peptide synthesis.

Side Reactions:
Guanidinylation of amines
Incomplete deprotection of Fmoc, Boc, Trityl, tBu, Acm.

Currently supports positive ionization mode, up to triply charged species, either as M or 2M species:
plus H, Na, or K.
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Available in countries
Country Price
Canada free
China free
France free
Germany free
Italy free
Netherlands free
Portugal free
Spain free
Poland free
UK free
India free
Japan free
Poland free
Russia free
Turkey free
USA free
Korea, Republic Of free
Ukraine free
Available for devices
iPad2Wifi, iPad23G, iPhone4S, iPadThirdGen, iPadThirdGen4G, iPhone5, iPodTouchFifthGen, iPadFourthGen, iPadFourthGen4G, iPadMini, iPadMini4G, iPhone5c, iPhone5s, iPadAir, iPadAirCellular, iPadMiniRetina, iPadMiniRetinaCellular, iPhone6, iPhone6Plus, iPadAir2, iPadAir2Cellular, iPadMini3, iPadMini3Cellular, iPodTouchSixthGen, iPhone6s, iPhone6sPlus, iPadMini4, iPadMini4Cellular, iPadPro, iPadProCellular, iPadPro97, iPadPro97Cellular, iPhoneSE, iPhone7, iPhone7Plus, iPad611, iPad612, iPad71, iPad72, iPad73, iPad74, iPhone8, iPhone8Plus, iPhoneX,