Protected Amino Acids

Stable Isotope Labeled Protected Amino Acids for Peptide Synthesis

Protected amino acids allow for the precise control of the position of labeled amino acids within a peptide of interest allowing researchers to address structural questions. This type of tool can be extremely beneficial in the analysis of membrane proteins, self associating proteins forming insoluble deposits and macromolecular structures. ISOTEC Stable Isotopes offers a wide selection of both Fmoc and t-Boc protected amino acids for this application.

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486760 Boc-Ala-OH-1-13C 99 atom % 13C 190.2
489913 Boc-Ala-OH-15N ≥98 atom % 15N, ≥99% (CP) 190.2
605077 Boc-Ala-OH-2-13C 99 atom % 13C 190.2
603449 Boc-Ala-OH-2-13C,15N 99 atom % 13C, 98 atom % 15N 191.2
492892 Boc-Ala-OH-3-13C 99 atom % 13C 190.2
485837 Boc-Ala-OH-13C3,15N 98 atom % 15N, 99 atom % 13C 193.2
605050 Boc-D-Ala-OH-3-13C 99 atom % 13C 190.2
486787 Boc-Ala-OH-3,3,3-d3 99 atom % D 192.2
579785 Boc-Asn-OH-(α-amine-15N) 98 atom % 15N 233.2
586188 Boc-Asp-OH-3-13C 99 atom % 13C 234.2
586404 Boc-Asp-OH-4-13C 99 atom % 13C 234.2
587702 Boc-Gln-OH-15N2 98 atom % 15N 248.3
588407 Boc-Glu-OBzl-13C5,15N 98 atom % 13C, 98 atom % 15N, 97% (CP) 343.3
587680 Boc-Glu-OH-1-13C 99 atom % 13C 248.2
587699 Boc-Glu-OH-15N 98 atom % 15N 248.2
486698 Boc-Gly-OH-1-13C 99 atom % 13C 176.2
587729 Boc-Gly-OH-1-13C,15N 99 atom % 13C, 98 atom % 15N 177.2
486701 Boc-Gly-OH-15N 98 atom % 15N, 99% (CP) 176.2
604992 Boc-Gly-OH-13C2 99 atom % 13C 177.2
485780 Boc-Gly-OH-2-13C 99 atom % 13C 176.2
587737 Boc-Gly-OH-13C2,15N 99 atom % 13C, 98 atom % 15N 178.2
489557 Boc-Gly-OH-2-13C,15N 98 atom % 15N, 99 atom % 13C 177.2
587710 Boc-Gly-OH-2,2-d2 98 atom % D 177.2
485942 Boc-Leu-OH-1-13C monohydrate 99 atom % 13C 250.3
492930 Boc-Leu-OH-15N monohydrate 98 atom % 15N 250.3
589233 Boc-Leu-OH-2-13C,15N monohydrate 99 atom % 13C, 98 atom % 15N 251.3
609161 Boc-Lys(Z)-OH-α-15N 98 atom % 15N 381.4
490075 Boc-Lys(Z)-OH-ε-15N 98 atom % 15N 381.4
615293 Boc-ON-(tert-butyl-d9) 98 atom % D 255.3
492957 Boc-13C-Phe-OH 99 atom % 13C 266.3
485969 Boc-Phe-OH-1-13C ≥99 atom % 13C, ≥98% (CP) 266.3
486833 Boc-Phe-OH-15N ≥98 atom % 15N, ≥98% (CP) 266.3
605204 Boc-Phe-OH-2-13C ≥99 atom % 13C, ≥98% (CP) 266.3
492973 Boc-Phe-OH-3-13C ≥99 atom % 13C, ≥98% (CP) 266.3
589551 Boc-Phe-OH-(phenyl-d5) ≥98 atom % D, ≥98% (CP) 270.3
754404 Boc-D-Phe-OH-(phenyl-d5) 99 atom % D, 98% (CP) 270.3
485977 Boc-Phe-OH-(phenyl-d5)-2,3,3-d3 ≥98 atom % D, ≥98% (CP) 273.4
676993 Boc-Pro-OH-15N 99 atom % 15N, 97% (CP) 216.2
737348 Boc-Pro-OH-13C5 98 atom % 13C, 97% (CP) 220.2
672866 Boc-Thr(Bzl)-OH-13C4,15N 98 atom % 15N, 99 atom % 13C, 97% (CP) 314.3
591092 Boc-Tyr-OH-15N 98 atom % 15N 283.3
604976 Boc-Val-OH-1-13C 99 atom % 13C 218.3
486019 Boc-Val-OH-15N 98 atom % 15N 218.3
616222 Boc-Val-OH-d8 98 atom % D 225.3
486752 Fmoc-Ala-OH-1-13C 99 atom % 13C 312.3
489905 Fmoc-Ala-OH-15N 98 atom % 15N 312.3
605158 Fmoc-Ala-OH-2-13C 99 atom % 13C 312.3
616044 Fmoc-Ala-OH-2,3,3,3-d4 98 atom % D 315.4
605131 Fmoc-Ala-OH-13C3 99 atom % 13C, 99% (CP) 314.3
489956 Fmoc-Ala-OH-3-13C 99 atom % 13C 312.3
667064 Fmoc-Ala-OH, 13C3,15N 99 atom % 13C, 98 atom % 15N 333.3
485888 Fmoc-Ala-OH-3,3,3-d3 99 atom % D 314.4
653659 Fmoc-Arg(Pbf)-OH-13C6,15N4 98 atom % 15N, 98 atom % 13C, 97% (CP) 658.7
579890 Fmoc-Asn-OH-15N2 98 atom % 15N 356.3
687359 Fmoc-Asn-OH-13C4,15N2 99 atom % 13C, 98 atom % 15N, 95% (CP) 360.3
609137 Fmoc-Asn-OH-amine-15N 98 atom % 15N 355.4
668745 Fmoc-Asn(Trt)-OH-15N2 98 atom % 15N, 95% (CP) 598.7
668753 Fmoc-Asn(Trt)-OH-13C4, 15N2 98 atom % 15N, 99 atom % 13C, 95% (CP) 602.6
588628 Fmoc-Asp-OH-1-13C 99 atom % 13C 356.3
492906 Fmoc-Asp-OH-15N 98 atom % 15N, 99% (CP) 356.3
594695 Fmoc-Asp-OH-2-13C 99 atom % 13C 356.3
605263 Fmoc-Asp-OH-4-13C 98 atom % 13C, 99% (CP) 356.3
577952 Fmoc-Asp-OtBu-15N 98 atom % 15N 413.5
594075 Fmoc-Asp(OtBu)-OH-15N 98 atom % 15N 412.4
683639 Fmoc-Asp(OtBu)-OH-13C4,15N 98 atom % 13C, 98 atom % 15N, 97% (CP) 416.4
676608 Fmoc-Cys(Trt)-OH-15N 98 atom % 15N, 97% (CP) 586.7
703109 Fmoc-Gln-(Trt)-OH-15N2 98 atom % 15N, 97% (CP) 612.7
663956 Fmoc-Gln-(Trt)-OH-13C5,15N2 98 atom % 13C, 98 atom % 15N, 97% (CP) 617.7
685496 Fmoc-Gln(Trt)-OH-(amine-15N) 98 atom % 15N, 97% (CP) 611.7
778001 N-Fmoc-Glu(OtBu)-OH-13C5,15N 99 atom % 13C, 98 atom % 15N, 97% (CP) 399.4
490008 Fmoc-Glu-OH-15N 98 atom % 15N 370.4
729701 Fmoc-Glu-OH-5-13C 99 atom % 13C, 97% (CP) 370.4
609153 Fmoc-Glu(OtBu)-OH-15N 98 atom % 15N, 99% (CP) 426.5
666009 Fmoc-Glu(OtBu)-OH-13C5, 15N 98 atom % 15N, 99 atom % 13C, 95% (CP) 431.4
605182 Fmoc-Gly-OH-1-13C 99 atom % 13C 298.3
485756 Fmoc-Gly-OH-15N 98 atom % 15N 298.3
587745 Fmoc-Gly-OH-13C2 99 atom % 13C 299.3
489549 Fmoc-Gly-OH-2-13C 99 atom % 13C 298.3
489530 Fmoc-Gly-OH-13C2,15N 99 atom % 13C, 98 atom % 15N 300.3
603457 Fmoc-Gly-OH-2-13C,15N 99 atom % 13C, 98 atom % 15N 299.3
485772 Fmoc-Gly-OH-2,2-d2 98 atom % D 299.3
676969 Fmoc-His(Trt)-OH-15N3 98 atom % 15N, 97% (CP) 622.7
707295 Fmoc-His(Trt)-OH-13C6, 15N3 97 atom % 13C, 95 atom % 15N, 95% (CP) 628.6
578622 Fmoc-Ile-OH-15N 98 atom % 15N, 99% (CP) 354.4
597228 Fmoc-Ile-OH-13C6,15N 98 atom % 15N, 98 atom % 13C, 98% (CP) 360.4
485934 Fmoc-Leu-OH-1-13C 99 atom % 13C 354.4
485950 Fmoc-Leu-OH-15N 98 atom % 15N, 98% (CP) 354.4
615943 Fmoc-Leu-OH-5,5,5-d3 99 atom % D 357.4
593532 Fmoc-Leu-OH-13C6,15N 98 atom % 15N, 98 atom % 13C, 99% (CP) 360.4
590401 Fmoc-Leu-OH-d10 98 atom % D, 99% (CP) 363.5
577960 Fmoc-Lys(Boc)-OH-15N2 98 atom % 15N 468.5
653632 Fmoc-Lys(Boc)-OH-13C6,15N2 98 atom % 13C, 98 atom % 15N, 97% (CP) 476.5
777889 Fmoc-N-Methyl-13C-L-valine-13C5,15N 99 atom % 13C, 98 atom % 15N, 97% (CP) 360.4
605115 Fmoc-Met-OH-1-13C 99 atom % 13C, 99% (CP) 372.4
609196 Fmoc-Met-OH-15N 98 atom % 15N 372.4
653640 Fmoc-Met-OH-13C5,15N 98 atom % 13C, 98 atom % 15N, 97% (CP) 377.4
609072 Fmoc-Phe-OH-15N 98 atom % 15N, 99% (CP) 388.4
492965 Fmoc-Phe-OH-2-13C 99 atom % 13C 388.4
651443 Fmoc-Phe-OH-13C9,15N 98 atom % 13C, 98 atom % 15N, 98% (CP) 397.4
615994 Fmoc-Phe-OH-(phenyl-d5)-2,3,3-d3 98 atom % D 395.5
589519 Fmoc-Pro-OH-15N 98 atom % 15N 338.4
651451 Fmoc-Pro-OH-13C5,15N 98 atom % 13C, 98 atom % 15N 343.3
609145 Fmoc-Ser(tBu)-OH-15N 98 atom % 15N 384.4
658928 Fmoc-Ser(tBu)-OH-13C3,15N 99 atom % 13C, 98 atom % 15N 387.4
658162 Fmoc-Thr(tBu)-OH-15N 98 atom % 15N 398.5
694274 Fmoc-Thr(tBu)-OH-13C4, 15N 99 atom % 13C, 98 atom % 15N, 97% (CP) 402.4
676977 Fmoc-Trp(Boc)-OH-15N2 97 atom % 15N, 97% (CP) 528.6
718696 Fmoc-Trp(Boc)-OH-13C11, 15N2 98 atom % 15N, 99 atom % 13C, 97% (CP) 539.5
648302 Fmoc-Trp-OH-15N2 95 atom % 15N, 98% (CP) 428.5
609218 Fmoc-Trp-OH-α-15N 98 atom % 15N 427.5
658898 Fmoc-Tyr (t-Bu)-OH-13C9,15N 98 atom % 13C, 98 atom % 15N, 97% (CP) 469.5
653624 Fmoc-Tyr-OH-15N 98 atom % 15N, 97% (CP) 404.4
658901 Fmoc-Tyr(tBu)-OH-15N 98 atom % 15N, 97% (CP) 460.5
485993 Fmoc-Val-OH-1-13C 99 atom % 13C, 98% (CP) 340.4
486000 Fmoc-Val-OH-15N 98 atom % 15N 340.4
642886 Fmoc-Val-OH-13C5,15N 98 atom % 15N, 98 atom % 13C, 99% (CP) 345.3
616087 Fmoc-Val-OH-d8 98 atom % D 347.4
799238 H-Lys(Boc)-OH-13C6,15N2 99 atom % 13C, 98 atom % 15N, 95% (CP) 254.3
777897 Z-Val-OH-13C5,15N 99 atom % 13C, 98 atom % 15N, 97% (CP) 257.2